The Experts below are selected from a list of 312 Experts worldwide ranked by ideXlab platform
Christy Burden - One of the best experts on this subject based on the ideXlab platform.
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usability of virtual reality simulation training in Obstetric Ultrasonography a prospective cohort study
Ultrasound in Obstetrics & Gynecology, 2013Co-Authors: Christy Burden, Jessica Preshaw, Paul D White, Tim Draycott, S Grant, Robert FoxAbstract:Objective To assess the usability of virtual-reality (VR) simulation for Obstetric ultrasound trainees. Methods Twenty-six participants were recruited: 18 Obstetric ultrasound trainees (with little formal Ultrasonography training) and eight certified experts. All performed five sequential VR-simulated crown–rump length (CRL) scans in a single session and three repetitions of biparietal diameter (BPD), occipitofrontal diameter (OFD) and femur length (FL) measurements. Outcome measures included mean percentage deviation from target for all measurements. Time taken to perform each type of scan was recorded. Results The mean percentage difference for the first scan was significantly greater for the trainee group than for the expert group for BPD (P = 0.035), OFD (P = 0.010) and FL (P = 0.008) and for time taken for the first CRL (P < 0.001) and fetal biometry (including BPD, OFD and FL measurements) scan (P < 0.001), demonstrating that trainees were initially significantly less accurate and less efficient. Over subsequent scans, the trainees became more accurate for all measurements with a significant improvement shown for OFD and FL (P < 0.05). The time taken for trainees to complete CRL and fetal biometry scans decreased significantly (all P < 0.05) with repetition, to near-expert efficiency. Conclusions All participants were able to use the simulator and produce clinically meaningful biometry results. With repetition, beginners quickly approached near-expert levels of accuracy and speed. These data demonstrate that Obstetricians with minimal experience can improve their ultrasonographic skills with short-phase VR-simulation training. The speed of improvement suggests that VR simulation might be useful as a warm-up exercise before clinical training sessions in order to reduce their impact on clinical service. Copyright © 2013 ISUOG. Published by John Wiley & Sons Ltd.
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Usability of virtual-reality simulation training in Obstetric Ultrasonography: A prospective cohort study
Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology, 2013Co-Authors: Christy Burden, Jessica Preshaw, Paul D White, Tim Draycott, S Grant, Robert FoxAbstract:Objective To assess the usability of virtual-reality (VR) simulation for Obstetric ultrasound trainees. Methods Twenty-six participants were recruited: 18 Obstetric ultrasound trainees (with little formal Ultrasonography training) and eight certified experts. All performed five sequential VR-simulated crown–rump length (CRL) scans in a single session and three repetitions of biparietal diameter (BPD), occipitofrontal diameter (OFD) and femur length (FL) measurements. Outcome measures included mean percentage deviation from target for all measurements. Time taken to perform each type of scan was recorded. Results The mean percentage difference for the first scan was significantly greater for the trainee group than for the expert group for BPD (P = 0.035), OFD (P = 0.010) and FL (P = 0.008) and for time taken for the first CRL (P
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Validation of virtual reality simulation for Obstetric Ultrasonography: A prospective cross-sectional study
Simulation in healthcare : journal of the Society for Simulation in Healthcare, 2012Co-Authors: Christy Burden, Jessica Preshaw, Paul D White, Tim Draycott, S Grant, Robert FoxAbstract:IntroductionUltrasonography is an important skill for Obstetricians and gynecologists; however, trainees have highlighted Ultrasonography as an area of deficiency in their training. We undertook a prospective cross-sectional comparative study to assess content and construct validity of an ultrasound
Mary E. D'alton - One of the best experts on this subject based on the ideXlab platform.
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Cost issues surrounding the use of computerized telemedicine for Obstetric Ultrasonography.
Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology, 1998Co-Authors: Fergal D. Malone, Achilles Athanassiou, Sabrina D. Craigo, Lynn L. Simpson, Mary E. D'altonAbstract:Objective The purpose of this study was to describe the cost implications of converting an established videotape review network for Obstetric Ultrasonography to one based on telemedicine technology. Design Retrospective review of fixed and non-fixed costs associated with interpreting Obstetric ultrasound examinations using both videotape and telemedicine transmission. Subjects A network of three community offices transmitting 600 Obstetric ultrasound examinations per month to a central tertiary level facility. Methods Sonographers at the community offices record ultrasound examinations onto videotape, which are then sent by courier to a central facility for interpretation. At the completion of this videotaped examination, sonographers repeat the ultrasound scan while transmitting real-time images over a telemedicine link to the central facility. Costs associated with the videotape review technique that can be avoided by converting to telemedicine interpretation were derived and compared with the fixed and non-fixed costs associated with establishing the telemedicine network. Results For this network, the fixed costs for establishing telemedicine are $101 750. Monthly non-fixed cost savings by eliminating videotape review include $1620 to $2700 for printing still images, $1200 for courier charges and $7000 for fewer repeat ultrasound examinations. Monthly non-fixed costs for the telemedicine network are $2415. Net monthly savings in non-fixed costs for a telemedicine network are therefore $7405 to $8585, which may pay for the initial fixed costs in 12 to 14 months. Conclusions The high cost of a telemedicine network may be offset by possible savings in non-fixed costs compared with alternative systems for interpreting Obstetric Ultrasonography. Copyright © 1998 International Society of Ultrasound in Obstetrics and Gynecology
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Effect of ISDN bandwidth on image quality for telemedicine transmission of Obstetric Ultrasonography.
Telemedicine journal : the official journal of the American Telemedicine Association, 1998Co-Authors: Fergal D. Malone, Achilles Athanassiou, Jose Nores, Mary E. D'altonAbstract:Objective To evaluate objectively the effect of different bandwidths on the ability to interpret Obstetric ultrasound scans transmitted live over a commercial telephone network. Materials and Methods An integrated services digital network (ISDN) was established from three satellite offices to our central prenatal diagnostic center. In the first half of the study, the network was based on four ISDN channels transmitting at a bandwidth of 256 kbits per second (kbps), while in the second half of the study, this was increased to six ISDN channels transmitting at 384 kbps. A physician trained in Obstetric Ultrasonography provided an interpretation of fetal anatomy using a live, real-time telemedicine link. A scoring system consisting of 33 anatomic items was used to evaluate image quality objectively. The number of transmissions complicated by motion artifact was also recorded. Results One hundred patients had a fetal anatomy survey performed using the 256 kbps system, and these interpretations were compared w...
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Validation of first-trimester telemedicine as an Obstetric imaging technology: a feasibility study.
Obstetrics and gynecology, 1997Co-Authors: Jose Nores, Fergal D. Malone, Achilles Athanassiou, Sabrina D. Craigo, Lynn L. Simpson, Mary E. D'altonAbstract:Abstract Objective: To establish whether first-trimester Obstetric Ultrasonography interpreted by a live video telemedicine link is comparable to an established videotape review network in a low-risk patient population. Methods: An integrated services digital network was established from three satellite offices to our central prenatal diagnostic center. All patients had a sonographic evaluation of the uterus, adnexa, and gestational sac recorded onto videotape by a trained sonographer. A live, interactive video telemedicine link was established, and a perinatologist directed the sonographer through the scan. Subsequently, a different perinatologist, blinded to the telemedicine interpretation, reviewed the original videotaped examination. The reports generated from both modalities then were compared by means of a score of 12 sonographic characteristics. Results: The first 100 patients were included. The mean gestational age (± standard deviation) was 8.9 ± 2.3 weeks (range 5.7–14.4), and the mean duration for telemedicine scans was 7.8 ± 2.9 minutes (range 3.8–20.1). Telemedicine and videotape review scores were the same in 95 cases, and the final diagnosis was identical in 98 cases. This study had 80% power to detect a 10% difference in diagnosis at a significance level of .05. The ability to detect abnormalities was equivalent using both systems. Conclusion: The interpretation of first-trimester Obstetric Ultrasonography using live video telemedicine is equivalent to a system of videotape review. Obstetric telemedicine may prove to be a useful tool for providing sonographic imaging for low-risk Obstetric patients.
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Validation of fetal telemedicine as a new Obstetric imaging technique
American journal of obstetrics and gynecology, 1997Co-Authors: Fergal D. Malone, Achilles Athanassiou, Sabrina D. Craigo, Lynn L. Simpson, Jose Nores, Sara H. Garmel, Mary E. D'altonAbstract:Abstract Objective: Our purpose was to establish whether Obstetric Ultrasonography interpreted by a live video telemedicine link is comparable to interpretation by videotape review in a low-risk patient population. Study design: An Integrated Services Digital Network (ISDN 6) was established from three satellite offices to our central prenatal diagnostic center. Patients seen at these satellite offices had a complete fetal anatomic survey recorded onto videotape by a trained ultrasonographer. A live interactive video telemedicine link was then established to our center by the digital network, and a perinatologist directed the ultrasonographer through the anatomy survey. Subsequently a different perinatologist, blinded to the telemedicine interpretation, reviewed the videotaped examination. The reports from the videotaped and telemedicine scans were then compared on the basis of a score of 33 anatomic items. Results: The first 200 patients seen at the satellite offices were included. Telemedicine and videotape interpretations provided similar scores in 84% of scans. In 17 of the 33 anatomic categories telemedicine provided significantly better scores than videotape, whereas in the remaining 16 anatomic categories the scores were equivalent. More videotape than telemedicine examinations required repeat Ultrasonography because of suboptimal imaging (10% vs 3%, p = 0.003). Conclusions: The interpretation of Obstetric Ultrasonography with use of live video telemedicine is comparable to videotape review. Fetal telemedicine may prove to be a useful tool for providing ultrasonographic interpretation of fetal anatomy to a network of low-risk Obstetric practices.
Robert Fox - One of the best experts on this subject based on the ideXlab platform.
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usability of virtual reality simulation training in Obstetric Ultrasonography a prospective cohort study
Ultrasound in Obstetrics & Gynecology, 2013Co-Authors: Christy Burden, Jessica Preshaw, Paul D White, Tim Draycott, S Grant, Robert FoxAbstract:Objective To assess the usability of virtual-reality (VR) simulation for Obstetric ultrasound trainees. Methods Twenty-six participants were recruited: 18 Obstetric ultrasound trainees (with little formal Ultrasonography training) and eight certified experts. All performed five sequential VR-simulated crown–rump length (CRL) scans in a single session and three repetitions of biparietal diameter (BPD), occipitofrontal diameter (OFD) and femur length (FL) measurements. Outcome measures included mean percentage deviation from target for all measurements. Time taken to perform each type of scan was recorded. Results The mean percentage difference for the first scan was significantly greater for the trainee group than for the expert group for BPD (P = 0.035), OFD (P = 0.010) and FL (P = 0.008) and for time taken for the first CRL (P < 0.001) and fetal biometry (including BPD, OFD and FL measurements) scan (P < 0.001), demonstrating that trainees were initially significantly less accurate and less efficient. Over subsequent scans, the trainees became more accurate for all measurements with a significant improvement shown for OFD and FL (P < 0.05). The time taken for trainees to complete CRL and fetal biometry scans decreased significantly (all P < 0.05) with repetition, to near-expert efficiency. Conclusions All participants were able to use the simulator and produce clinically meaningful biometry results. With repetition, beginners quickly approached near-expert levels of accuracy and speed. These data demonstrate that Obstetricians with minimal experience can improve their ultrasonographic skills with short-phase VR-simulation training. The speed of improvement suggests that VR simulation might be useful as a warm-up exercise before clinical training sessions in order to reduce their impact on clinical service. Copyright © 2013 ISUOG. Published by John Wiley & Sons Ltd.
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Usability of virtual-reality simulation training in Obstetric Ultrasonography: A prospective cohort study
Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology, 2013Co-Authors: Christy Burden, Jessica Preshaw, Paul D White, Tim Draycott, S Grant, Robert FoxAbstract:Objective To assess the usability of virtual-reality (VR) simulation for Obstetric ultrasound trainees. Methods Twenty-six participants were recruited: 18 Obstetric ultrasound trainees (with little formal Ultrasonography training) and eight certified experts. All performed five sequential VR-simulated crown–rump length (CRL) scans in a single session and three repetitions of biparietal diameter (BPD), occipitofrontal diameter (OFD) and femur length (FL) measurements. Outcome measures included mean percentage deviation from target for all measurements. Time taken to perform each type of scan was recorded. Results The mean percentage difference for the first scan was significantly greater for the trainee group than for the expert group for BPD (P = 0.035), OFD (P = 0.010) and FL (P = 0.008) and for time taken for the first CRL (P
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Validation of virtual reality simulation for Obstetric Ultrasonography: A prospective cross-sectional study
Simulation in healthcare : journal of the Society for Simulation in Healthcare, 2012Co-Authors: Christy Burden, Jessica Preshaw, Paul D White, Tim Draycott, S Grant, Robert FoxAbstract:IntroductionUltrasonography is an important skill for Obstetricians and gynecologists; however, trainees have highlighted Ultrasonography as an area of deficiency in their training. We undertook a prospective cross-sectional comparative study to assess content and construct validity of an ultrasound
Fergal D. Malone - One of the best experts on this subject based on the ideXlab platform.
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Cost issues surrounding the use of computerized telemedicine for Obstetric Ultrasonography.
Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology, 1998Co-Authors: Fergal D. Malone, Achilles Athanassiou, Sabrina D. Craigo, Lynn L. Simpson, Mary E. D'altonAbstract:Objective The purpose of this study was to describe the cost implications of converting an established videotape review network for Obstetric Ultrasonography to one based on telemedicine technology. Design Retrospective review of fixed and non-fixed costs associated with interpreting Obstetric ultrasound examinations using both videotape and telemedicine transmission. Subjects A network of three community offices transmitting 600 Obstetric ultrasound examinations per month to a central tertiary level facility. Methods Sonographers at the community offices record ultrasound examinations onto videotape, which are then sent by courier to a central facility for interpretation. At the completion of this videotaped examination, sonographers repeat the ultrasound scan while transmitting real-time images over a telemedicine link to the central facility. Costs associated with the videotape review technique that can be avoided by converting to telemedicine interpretation were derived and compared with the fixed and non-fixed costs associated with establishing the telemedicine network. Results For this network, the fixed costs for establishing telemedicine are $101 750. Monthly non-fixed cost savings by eliminating videotape review include $1620 to $2700 for printing still images, $1200 for courier charges and $7000 for fewer repeat ultrasound examinations. Monthly non-fixed costs for the telemedicine network are $2415. Net monthly savings in non-fixed costs for a telemedicine network are therefore $7405 to $8585, which may pay for the initial fixed costs in 12 to 14 months. Conclusions The high cost of a telemedicine network may be offset by possible savings in non-fixed costs compared with alternative systems for interpreting Obstetric Ultrasonography. Copyright © 1998 International Society of Ultrasound in Obstetrics and Gynecology
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Effect of ISDN bandwidth on image quality for telemedicine transmission of Obstetric Ultrasonography.
Telemedicine journal : the official journal of the American Telemedicine Association, 1998Co-Authors: Fergal D. Malone, Achilles Athanassiou, Jose Nores, Mary E. D'altonAbstract:Objective To evaluate objectively the effect of different bandwidths on the ability to interpret Obstetric ultrasound scans transmitted live over a commercial telephone network. Materials and Methods An integrated services digital network (ISDN) was established from three satellite offices to our central prenatal diagnostic center. In the first half of the study, the network was based on four ISDN channels transmitting at a bandwidth of 256 kbits per second (kbps), while in the second half of the study, this was increased to six ISDN channels transmitting at 384 kbps. A physician trained in Obstetric Ultrasonography provided an interpretation of fetal anatomy using a live, real-time telemedicine link. A scoring system consisting of 33 anatomic items was used to evaluate image quality objectively. The number of transmissions complicated by motion artifact was also recorded. Results One hundred patients had a fetal anatomy survey performed using the 256 kbps system, and these interpretations were compared w...
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Validation of first-trimester telemedicine as an Obstetric imaging technology: a feasibility study.
Obstetrics and gynecology, 1997Co-Authors: Jose Nores, Fergal D. Malone, Achilles Athanassiou, Sabrina D. Craigo, Lynn L. Simpson, Mary E. D'altonAbstract:Abstract Objective: To establish whether first-trimester Obstetric Ultrasonography interpreted by a live video telemedicine link is comparable to an established videotape review network in a low-risk patient population. Methods: An integrated services digital network was established from three satellite offices to our central prenatal diagnostic center. All patients had a sonographic evaluation of the uterus, adnexa, and gestational sac recorded onto videotape by a trained sonographer. A live, interactive video telemedicine link was established, and a perinatologist directed the sonographer through the scan. Subsequently, a different perinatologist, blinded to the telemedicine interpretation, reviewed the original videotaped examination. The reports generated from both modalities then were compared by means of a score of 12 sonographic characteristics. Results: The first 100 patients were included. The mean gestational age (± standard deviation) was 8.9 ± 2.3 weeks (range 5.7–14.4), and the mean duration for telemedicine scans was 7.8 ± 2.9 minutes (range 3.8–20.1). Telemedicine and videotape review scores were the same in 95 cases, and the final diagnosis was identical in 98 cases. This study had 80% power to detect a 10% difference in diagnosis at a significance level of .05. The ability to detect abnormalities was equivalent using both systems. Conclusion: The interpretation of first-trimester Obstetric Ultrasonography using live video telemedicine is equivalent to a system of videotape review. Obstetric telemedicine may prove to be a useful tool for providing sonographic imaging for low-risk Obstetric patients.
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Validation of fetal telemedicine as a new Obstetric imaging technique
American journal of obstetrics and gynecology, 1997Co-Authors: Fergal D. Malone, Achilles Athanassiou, Sabrina D. Craigo, Lynn L. Simpson, Jose Nores, Sara H. Garmel, Mary E. D'altonAbstract:Abstract Objective: Our purpose was to establish whether Obstetric Ultrasonography interpreted by a live video telemedicine link is comparable to interpretation by videotape review in a low-risk patient population. Study design: An Integrated Services Digital Network (ISDN 6) was established from three satellite offices to our central prenatal diagnostic center. Patients seen at these satellite offices had a complete fetal anatomic survey recorded onto videotape by a trained ultrasonographer. A live interactive video telemedicine link was then established to our center by the digital network, and a perinatologist directed the ultrasonographer through the anatomy survey. Subsequently a different perinatologist, blinded to the telemedicine interpretation, reviewed the videotaped examination. The reports from the videotaped and telemedicine scans were then compared on the basis of a score of 33 anatomic items. Results: The first 200 patients seen at the satellite offices were included. Telemedicine and videotape interpretations provided similar scores in 84% of scans. In 17 of the 33 anatomic categories telemedicine provided significantly better scores than videotape, whereas in the remaining 16 anatomic categories the scores were equivalent. More videotape than telemedicine examinations required repeat Ultrasonography because of suboptimal imaging (10% vs 3%, p = 0.003). Conclusions: The interpretation of Obstetric Ultrasonography with use of live video telemedicine is comparable to videotape review. Fetal telemedicine may prove to be a useful tool for providing ultrasonographic interpretation of fetal anatomy to a network of low-risk Obstetric practices.
Jose Nores - One of the best experts on this subject based on the ideXlab platform.
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Effect of ISDN bandwidth on image quality for telemedicine transmission of Obstetric Ultrasonography.
Telemedicine journal : the official journal of the American Telemedicine Association, 1998Co-Authors: Fergal D. Malone, Achilles Athanassiou, Jose Nores, Mary E. D'altonAbstract:Objective To evaluate objectively the effect of different bandwidths on the ability to interpret Obstetric ultrasound scans transmitted live over a commercial telephone network. Materials and Methods An integrated services digital network (ISDN) was established from three satellite offices to our central prenatal diagnostic center. In the first half of the study, the network was based on four ISDN channels transmitting at a bandwidth of 256 kbits per second (kbps), while in the second half of the study, this was increased to six ISDN channels transmitting at 384 kbps. A physician trained in Obstetric Ultrasonography provided an interpretation of fetal anatomy using a live, real-time telemedicine link. A scoring system consisting of 33 anatomic items was used to evaluate image quality objectively. The number of transmissions complicated by motion artifact was also recorded. Results One hundred patients had a fetal anatomy survey performed using the 256 kbps system, and these interpretations were compared w...
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Validation of first-trimester telemedicine as an Obstetric imaging technology: a feasibility study.
Obstetrics and gynecology, 1997Co-Authors: Jose Nores, Fergal D. Malone, Achilles Athanassiou, Sabrina D. Craigo, Lynn L. Simpson, Mary E. D'altonAbstract:Abstract Objective: To establish whether first-trimester Obstetric Ultrasonography interpreted by a live video telemedicine link is comparable to an established videotape review network in a low-risk patient population. Methods: An integrated services digital network was established from three satellite offices to our central prenatal diagnostic center. All patients had a sonographic evaluation of the uterus, adnexa, and gestational sac recorded onto videotape by a trained sonographer. A live, interactive video telemedicine link was established, and a perinatologist directed the sonographer through the scan. Subsequently, a different perinatologist, blinded to the telemedicine interpretation, reviewed the original videotaped examination. The reports generated from both modalities then were compared by means of a score of 12 sonographic characteristics. Results: The first 100 patients were included. The mean gestational age (± standard deviation) was 8.9 ± 2.3 weeks (range 5.7–14.4), and the mean duration for telemedicine scans was 7.8 ± 2.9 minutes (range 3.8–20.1). Telemedicine and videotape review scores were the same in 95 cases, and the final diagnosis was identical in 98 cases. This study had 80% power to detect a 10% difference in diagnosis at a significance level of .05. The ability to detect abnormalities was equivalent using both systems. Conclusion: The interpretation of first-trimester Obstetric Ultrasonography using live video telemedicine is equivalent to a system of videotape review. Obstetric telemedicine may prove to be a useful tool for providing sonographic imaging for low-risk Obstetric patients.
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Validation of fetal telemedicine as a new Obstetric imaging technique
American journal of obstetrics and gynecology, 1997Co-Authors: Fergal D. Malone, Achilles Athanassiou, Sabrina D. Craigo, Lynn L. Simpson, Jose Nores, Sara H. Garmel, Mary E. D'altonAbstract:Abstract Objective: Our purpose was to establish whether Obstetric Ultrasonography interpreted by a live video telemedicine link is comparable to interpretation by videotape review in a low-risk patient population. Study design: An Integrated Services Digital Network (ISDN 6) was established from three satellite offices to our central prenatal diagnostic center. Patients seen at these satellite offices had a complete fetal anatomic survey recorded onto videotape by a trained ultrasonographer. A live interactive video telemedicine link was then established to our center by the digital network, and a perinatologist directed the ultrasonographer through the anatomy survey. Subsequently a different perinatologist, blinded to the telemedicine interpretation, reviewed the videotaped examination. The reports from the videotaped and telemedicine scans were then compared on the basis of a score of 33 anatomic items. Results: The first 200 patients seen at the satellite offices were included. Telemedicine and videotape interpretations provided similar scores in 84% of scans. In 17 of the 33 anatomic categories telemedicine provided significantly better scores than videotape, whereas in the remaining 16 anatomic categories the scores were equivalent. More videotape than telemedicine examinations required repeat Ultrasonography because of suboptimal imaging (10% vs 3%, p = 0.003). Conclusions: The interpretation of Obstetric Ultrasonography with use of live video telemedicine is comparable to videotape review. Fetal telemedicine may prove to be a useful tool for providing ultrasonographic interpretation of fetal anatomy to a network of low-risk Obstetric practices.
