The Experts below are selected from a list of 3120 Experts worldwide ranked by ideXlab platform
Steffen Rickes - One of the best experts on this subject based on the ideXlab platform.
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impact of high resolution Transabdominal Ultrasound in the diagnosis of complications of crohn s disease
Scandinavian Journal of Gastroenterology, 2010Co-Authors: Holger Neye, Daniel Ensberg, Peter Rauh, U Peitz, Klaus Monkemuller, Gerhard Treiber, Sabine Klauck, Peter Malfertheiner, Steffen RickesAbstract:AbstractObjective. Crohn's disease is associated with intestinal complications such as strictures, fistulas and abscesses. As the management of the patients is influenced by the presence or absence of complication, sensitive diagnostic modalities to detect these complications are needed. The aim of this prospective study was to evaluate the diagnostic accuracy of high-resolution Transabdominal Ultrasound in the diagnosis of complications of Crohn's disease. Material and methods . From April 2003 to July 2009, 58 patients (31 women, 27 men; mean age 36.3 years, range 13-86 years) with known Crohn's disease were included in the study and investigated with high-resolution Transabdominal Ultrasound. The diagnosis of Crohn's disease was based on clinical, endoscopic, histological, radiological and operative findings. Patients with other forms of enteritis (e.g. infectious) were excluded from the study. Twenty of the 58 patients were investigated on a second occasion with other symptoms than at the first admiss...
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impact of the operator s experience on value of high resolution Transabdominal Ultrasound in the diagnosis of choledocholithiasis a prospective comparison using endoscopic retrograde cholangiography as the gold standard
Scandinavian Journal of Gastroenterology, 2006Co-Authors: Steffen Rickes, U Peitz, Klaus Monkemuller, Gerhard Treiber, Antal Csepregi, Stefan Kahl, Anika Vopel, Kathleen Wolle, Matthias P A Ebert, Sabine KlauckAbstract:Objective. Transabdominal Ultrasound (US) is the most frequently used imaging method for the diagnosis of choledocholithiasis. The aim of this prospective study was to evaluate the diagnostic accuracy of high-resolution US in the diagnosis of common bile duct stones depending on the operator's experience and in comparison with endoscopic retrograde cholangiography (ERC) as the gold standard. Material and methods. From April 2003 through November 2004, 126 patients referred because of clinically and biochemically suspected common bile duct stones were included in the study. Two patients were excluded because they refused to undergo ERC. Consequently, the study comprised 124 patients (86 F, 38 M, mean age 63.2 years, range 21–91 years). High-resolution US was performed (2–5 MHz sector scanner; Siemens Elegra, Erlangen, Germany) by operators who were unaware of the results of other imaging procedures. The definitive diagnosis was established by means of ERC. Results. Thirty-five out of 124 patients were inve...
Sabine Klauck - One of the best experts on this subject based on the ideXlab platform.
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impact of high resolution Transabdominal Ultrasound in the diagnosis of complications of crohn s disease
Scandinavian Journal of Gastroenterology, 2010Co-Authors: Holger Neye, Daniel Ensberg, Peter Rauh, U Peitz, Klaus Monkemuller, Gerhard Treiber, Sabine Klauck, Peter Malfertheiner, Steffen RickesAbstract:AbstractObjective. Crohn's disease is associated with intestinal complications such as strictures, fistulas and abscesses. As the management of the patients is influenced by the presence or absence of complication, sensitive diagnostic modalities to detect these complications are needed. The aim of this prospective study was to evaluate the diagnostic accuracy of high-resolution Transabdominal Ultrasound in the diagnosis of complications of Crohn's disease. Material and methods . From April 2003 to July 2009, 58 patients (31 women, 27 men; mean age 36.3 years, range 13-86 years) with known Crohn's disease were included in the study and investigated with high-resolution Transabdominal Ultrasound. The diagnosis of Crohn's disease was based on clinical, endoscopic, histological, radiological and operative findings. Patients with other forms of enteritis (e.g. infectious) were excluded from the study. Twenty of the 58 patients were investigated on a second occasion with other symptoms than at the first admiss...
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impact of the operator s experience on value of high resolution Transabdominal Ultrasound in the diagnosis of choledocholithiasis a prospective comparison using endoscopic retrograde cholangiography as the gold standard
Scandinavian Journal of Gastroenterology, 2006Co-Authors: Steffen Rickes, U Peitz, Klaus Monkemuller, Gerhard Treiber, Antal Csepregi, Stefan Kahl, Anika Vopel, Kathleen Wolle, Matthias P A Ebert, Sabine KlauckAbstract:Objective. Transabdominal Ultrasound (US) is the most frequently used imaging method for the diagnosis of choledocholithiasis. The aim of this prospective study was to evaluate the diagnostic accuracy of high-resolution US in the diagnosis of common bile duct stones depending on the operator's experience and in comparison with endoscopic retrograde cholangiography (ERC) as the gold standard. Material and methods. From April 2003 through November 2004, 126 patients referred because of clinically and biochemically suspected common bile duct stones were included in the study. Two patients were excluded because they refused to undergo ERC. Consequently, the study comprised 124 patients (86 F, 38 M, mean age 63.2 years, range 21–91 years). High-resolution US was performed (2–5 MHz sector scanner; Siemens Elegra, Erlangen, Germany) by operators who were unaware of the results of other imaging procedures. The definitive diagnosis was established by means of ERC. Results. Thirty-five out of 124 patients were inve...
Odd Helge Gilja - One of the best experts on this subject based on the ideXlab platform.
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diagnostic accuracy of Transabdominal Ultrasound in chronic pancreatitis
Ultrasound in Medicine and Biology, 2017Co-Authors: Trond Engjom, Dag Andre Sangnes, Roald Flesland Havre, Friedemann Erchinger, Khanh Pham, Ingfrid S Haldorsen, Odd Helge GiljaAbstract:Abstract The performance of Transabdominal Ultrasound (US) in chronic pancreatitis (CP) following the advances in US technology made during recent decades has not been explored. Our aim in this prospective study was to evaluate the diagnostic accuracy of modern abdominal US compared with the Mayo score in CP. One hundred thirty-four patients referred for suspected CP were included in the study. Fifty-four patients were assigned the diagnosis CP. After inclusion, Transabdominal US was performed. Ductal features (calculi, dilations and caliber variations, side-branch dilations and hyper-echoic duct wall margins) and parenchymal features (calcifications, cysts, hyper-echoic foci, stranding, lobulation and honeycombing) were recorded. Features were counted and scored according to a weighting system defined at the international consensus meeting in Rosemont, Illinois (Rosemont score). Diagnostic performance indices (95% confidence interval) of US were calculated: The unweighted count of features had a sensitivity of 0.69 (0.54–0.80) and specificity of 0.97 (0.90–1). The Rosemont score had a sensitivity of 0.81 (0.69–0.91) and specificity of 0.97 (0.90–1). Exocrine pancreatic failure was most pronounced in Rosemont groups I and II ( p
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mechanosensory properties in the human gastric antrum evaluated using b mode ultrasonography during volume controlled antral distension
American Journal of Physiology-gastrointestinal and Liver Physiology, 2006Co-Authors: Hans Gregersen, Trygve Hausken, Jian Yang, S Odegaard, Odd Helge GiljaAbstract:The aims of this study were to evaluate gastric antral mechanical behavior and distension-induced sensorimotor responses in the human gastric antrum using Transabdominal Ultrasound scanning. Ten he...
Nadav Schwartz - One of the best experts on this subject based on the ideXlab platform.
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can Transabdominal Ultrasound identify women at high risk for short cervical length
Acta Obstetricia et Gynecologica Scandinavica, 2013Co-Authors: Alexander M Friedman, Samuel Parry, Nadav Schwartz, Jack Ludmir, Jamie A Bastek, Harish SehdevAbstract:Objective To determine whether Transabdominal cervical length screening could identify women at high risk for having a short cervix on transvaginal Ultrasound. Design Retrospective cohort study. Setting Tertiary referral center. Population A total of 703 patients with a singleton pregnancy at 18 to 23+6 weeks of gestation who underwent Transabdominal and transvaginal cervical length assessment during anatomy Ultrasound at a single institution between January 2007 and October 2011. Methods Electronic medical records were reviewed to identify women who met the study criteria. Main outcome measures The primary outcome was the number of women with a short Transabdominal cervical length (defined as ≤30 mm) who needed to undergo transvaginal Ultrasound to detect one woman with a short transvaginal cervical length of ≤20 mm. Results In all, 703 patients were included in the primary analysis; 3.42 women with Transabdominal cervical length ≤30 mm needed to undergo transvaginal Ultrasound to detect one woman with transvaginal Ultrasound cervical length ≤20 mm. Of women with short transvaginal cervical length ≤20 mm, 89.8% had a Transabdominal measurement ≤30 mm and 96.7% had a Transabdominal measurement ≤33 mm. Conclusions Screening of Transabdominal cervical length may represent a useful strategy for detecting women with short cervix on transvaginal Ultrasound.
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can Transabdominal Ultrasound be used as a screening test for short cervical length
American Journal of Obstetrics and Gynecology, 2013Co-Authors: Alexander M Friedman, Sindhu K Srinivas, Samuel Parry, Michal A Elovitz, Eileen Wang, Nadav SchwartzAbstract:Objective Universal transvaginal cervical length screening can be associated with a significant logistical burden. We hypothesized that there is a threshold cervical length measured by Transabdominal Ultrasound above which risk for short transvaginal cervical length is extremely low. Study Design This prospective cohort study evaluated a consecutive series of women offered universal transvaginal cervical length screening during anatomy Ultrasound. Transabdominal measurement of the cervix—obtained before and after voiding for each patient—was performed before transvaginal Ultrasound. The study was powered to detect a Transabdominal cervical length cutoff with 95% sensitivity (95% confidence interval, 90–99%) for transvaginal cervical length of ≤25 mm. Results One thousand two hundred seventeen women were included in the analysis. Prevoid Transabdominal cervical length ≤36 mm detects 96% of transvaginal cervical lengths ≤25 mm with 39% specificity. A prevoid Transabdominal cervical length ≤35 mm detects 100% of transvaginal cervical lengths ≤20 mm with 41% specificity. Transabdominal images of the cervix could not be obtained in 6.2% of women prevoid and 17.9% of women postvoid. Conclusion Transabdominal cervical length screening successfully identifies women at very low risk for short transvaginal cervical length. Transabdominal screening may significantly reduce the burden of universal cervical length screening by allowing approximately 40% of women to avoid transvaginal Ultrasound. To ensure high sensitivity of Transabdominal screening, approximately 60% of patients will still require a transvaginal study.
Alexander M Friedman - One of the best experts on this subject based on the ideXlab platform.
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can Transabdominal Ultrasound identify women at high risk for short cervical length
Acta Obstetricia et Gynecologica Scandinavica, 2013Co-Authors: Alexander M Friedman, Samuel Parry, Nadav Schwartz, Jack Ludmir, Jamie A Bastek, Harish SehdevAbstract:Objective To determine whether Transabdominal cervical length screening could identify women at high risk for having a short cervix on transvaginal Ultrasound. Design Retrospective cohort study. Setting Tertiary referral center. Population A total of 703 patients with a singleton pregnancy at 18 to 23+6 weeks of gestation who underwent Transabdominal and transvaginal cervical length assessment during anatomy Ultrasound at a single institution between January 2007 and October 2011. Methods Electronic medical records were reviewed to identify women who met the study criteria. Main outcome measures The primary outcome was the number of women with a short Transabdominal cervical length (defined as ≤30 mm) who needed to undergo transvaginal Ultrasound to detect one woman with a short transvaginal cervical length of ≤20 mm. Results In all, 703 patients were included in the primary analysis; 3.42 women with Transabdominal cervical length ≤30 mm needed to undergo transvaginal Ultrasound to detect one woman with transvaginal Ultrasound cervical length ≤20 mm. Of women with short transvaginal cervical length ≤20 mm, 89.8% had a Transabdominal measurement ≤30 mm and 96.7% had a Transabdominal measurement ≤33 mm. Conclusions Screening of Transabdominal cervical length may represent a useful strategy for detecting women with short cervix on transvaginal Ultrasound.
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can Transabdominal Ultrasound be used as a screening test for short cervical length
American Journal of Obstetrics and Gynecology, 2013Co-Authors: Alexander M Friedman, Sindhu K Srinivas, Samuel Parry, Michal A Elovitz, Eileen Wang, Nadav SchwartzAbstract:Objective Universal transvaginal cervical length screening can be associated with a significant logistical burden. We hypothesized that there is a threshold cervical length measured by Transabdominal Ultrasound above which risk for short transvaginal cervical length is extremely low. Study Design This prospective cohort study evaluated a consecutive series of women offered universal transvaginal cervical length screening during anatomy Ultrasound. Transabdominal measurement of the cervix—obtained before and after voiding for each patient—was performed before transvaginal Ultrasound. The study was powered to detect a Transabdominal cervical length cutoff with 95% sensitivity (95% confidence interval, 90–99%) for transvaginal cervical length of ≤25 mm. Results One thousand two hundred seventeen women were included in the analysis. Prevoid Transabdominal cervical length ≤36 mm detects 96% of transvaginal cervical lengths ≤25 mm with 39% specificity. A prevoid Transabdominal cervical length ≤35 mm detects 100% of transvaginal cervical lengths ≤20 mm with 41% specificity. Transabdominal images of the cervix could not be obtained in 6.2% of women prevoid and 17.9% of women postvoid. Conclusion Transabdominal cervical length screening successfully identifies women at very low risk for short transvaginal cervical length. Transabdominal screening may significantly reduce the burden of universal cervical length screening by allowing approximately 40% of women to avoid transvaginal Ultrasound. To ensure high sensitivity of Transabdominal screening, approximately 60% of patients will still require a transvaginal study.