The Experts below are selected from a list of 4359 Experts worldwide ranked by ideXlab platform
Gilda Cennamo - One of the best experts on this subject based on the ideXlab platform.
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evaluation of vascular changes with optical coherence tomography angiography after ruthenium 106 brachytherapy of circumscribed choroidal hemangioma
2018Co-Authors: Claudia Rossi, Maria Angelica Breve, Nunzio Velotti, A Farella, Raffaele Liuzzi, Gilda CennamoAbstract:PURPOSE: To describe the vascular changes of circumscribed choroidal hemangioma (CCH) after ruthenium-106 brachytherapy using optical coherence tomography angiography (angio-OCT). METHODS: Seven eyes of 7 patients diagnosed with symptomatic CCH who underwent ruthenium-106 plaque radiotherapy were included in the study. Patients underwent complete ophthalmic examination, bulbar Echography and angio-OCT. The same protocol was applied 1 year after ruthenium-106 brachytherapy. RESULTS: At baseline, the mean best-corrected visual acuity (BCVA) in affected eyes was 0.67 ± 0.14 logMAR, and the mean tumor thickness was 4.46 ± 0.91 mm measured by standardized A-scan Echography. After ruthenium-106 plaque treatment, the mean BCVA increased to 0.17 ± 0.10 logMAR (p = 0.001) and the mean tumor thickness to 2.29 ± 0.71 mm (p = 0.003). Moreover, there was a significant reduction of the tumor basal diameter (p= 0.009). Intra-tumor angio-OCT measurements revealed a statistically significant reduction of the vessel and flow areas (p = 0.006 and p = 0.002, respectively) 1 year after brachytherapy. CONCLUSIONS: Angio-OCT is a non-invasive reliable method with which to evaluate the vascular features of CCH and consequently to monitor changes after conservative treatment.
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evaluation of morning glory syndrome with spectral optical coherence tomography and Echography
2010Co-Authors: Giuseppe De Crecchio, Gennarfrancesco Iaccarino, Raimondo Forte, Gilda CennamoAbstract:Purpose To evaluate eyes affected by morning glory syndrome (MGS) with spectral-domain optical coherence tomography (SD OCT) and Echography. Design Prospective case series. Participants Nineteen patients (22 eyes) with MGS observed at the Eye Department, University of Naples Federico II, Naples, Italy. Methods All patients underwent a complete ophthalmologic examination that included best-correct visual acuity, fundus photography, and Echography. Nine patients underwent SD OCT and high-frequency B-scan Echography (20 MHz). Main Outcome Measures Spectral-domain optical coherence tomography and echographic findings in MGS. Results Spectral-domain optical coherence tomography revealed retinal detachment in the conus area of 5 eyes: 4 with noncontractile MGS (NCMGS) and 1 with contractile MGS (CMGS). There was evidence of a retinal break in only 2 cases. All 5 eyes had an abnormal communication between the subarachnoid space and the subretinal space. Spectral-domain optical coherence tomography did not reveal differences between CMGS and NCMGS. Echographic examination did not reveal any anatomic abnormalities of the optic nerve or orbit. Conclusions Spectral-domain optical coherence tomography provides more information than Echography about the posterior pole, whereas echographic examination is the only technique that can confirm the anatomic integrity of the optic nerve in the orbital wall. Retinal detachment in MGS generally is ascribed to abnormal communication between the subretinal and subarachnoid or vitreous compartments. These data suggest that myopialike retinal detachment without a retinal break may result from tissue stretching around the peripapillary conus. Financial Disclosure(s) The author(s) have no proprietary or commercial interest in any materials discussed in this article.
Michael G. Strintzis - One of the best experts on this subject based on the ideXlab platform.
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Mobile tele-Echography: user interface design
2005Co-Authors: George A. Triantafyllidis, Nikolaos Thomos, Cristina Canero, Michael G. Strintzis, G.c. LitosAbstract:Ultrasound imaging allows the evaluation of the degree of emergency of a patient. However, in some instances, a well-trained sonographer is unavailable to perform such Echography. To cope with this issue, the Mobile Tele-Echography Using an Ultralight Robot (OTELO) project aims to develop a fully integrated end-to-end mobile tele-Echography system using an ultralight remote-controlled robot for population groups that are not served locally by medical experts. This paper focuses on the user interface of the OTELO system, consisting of the following parts: an ultrasound video transmission system providing real-time images of the scanned area, an audio/video conference to communicate with the paramedical assistant and with the patient, and a virtual-reality environment, providing visual and haptic feedback to the expert, while capturing the expert's hand movements. These movements are reproduced by the robot at the patient site while holding the ultrasound probe against the patient skin. In addition, the user interface includes an image processing facility for enhancing the received images and the possibility to include them into a database.
M Antonelli - One of the best experts on this subject based on the ideXlab platform.
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usefulness of transcranial Echography in patients with decompressive craniectomy a comparison with computed tomography scan
2012Co-Authors: Vittorio Mignani, Maria Grazia Bocci, Mariano Alberto Pennisi, Claudio Sandroni, Alessandra Tersali, Alessandra Antonaci, Chiara De Waure, M Antonelli, Anselmo CaricatoAbstract:Objective: To assess the agreement between computed tomog raphy and transcranial sonography in patients after decompres sive craniectomy. Design: Prospective study. Setting: The medical intensive care unit of a university-affiliated teaching hospital. Patients: Thirty head-injured patients consecutively admitted to the intensive care unit of “A. Gemelli” Hospital who underwent de compressive craniectomy were studied. Immediately before brain cranial tomography, transcranial ultrasonography was performed. Measurements and Main Results: The mean difference between computed tomography and Echography in measuring the disloca tion of midline structures was 0.3 1.6 mm (95% confidence interval 0.2–0.9 mm; intraclass correlation coefficient, 0.979; p .01). An excellent correlation was found between computed tomography and transcranial sonography in assessing volumes of hyperdense lesions (intraclass correlation coefficient, 0.993; p .01). Lesions that appear hypodense on computed tomography scan were divided in ischemic and late hemorrhagic. No ischemic lesion was localized on Echography; a poor correlation was found between computed tomography and Echography in assessing the volume of late hem orrhagic lesions (intraclass correlation coefficient, 0.151; p .53). A quite good correlation between transcranial ultrasonography and computed tomography was found in measuring lateral ventricles width (intraclass correlation coefficient, 0.967; p .01). Sensitivity and specificity of transcranial ultrasonography in comparison with computed tomography to detect the position of intracranial pres sure catheter was 100% and 78%. Conclusions: Echography may be a valid option to computed tomography in patients with decompressive craniectomy to assess the size of acute hemorrhagic lesions, to measure midline struc tures and the width of lateral ventricles, and to visualize the tip of the ventricular catheter. (Crit Care Med 2012; 40:
Cristina Canero - One of the best experts on this subject based on the ideXlab platform.
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Mobile tele-Echography: user interface design
2005Co-Authors: George A. Triantafyllidis, Nikolaos Thomos, Cristina Canero, Michael G. Strintzis, G.c. LitosAbstract:Ultrasound imaging allows the evaluation of the degree of emergency of a patient. However, in some instances, a well-trained sonographer is unavailable to perform such Echography. To cope with this issue, the Mobile Tele-Echography Using an Ultralight Robot (OTELO) project aims to develop a fully integrated end-to-end mobile tele-Echography system using an ultralight remote-controlled robot for population groups that are not served locally by medical experts. This paper focuses on the user interface of the OTELO system, consisting of the following parts: an ultrasound video transmission system providing real-time images of the scanned area, an audio/video conference to communicate with the paramedical assistant and with the patient, and a virtual-reality environment, providing visual and haptic feedback to the expert, while capturing the expert's hand movements. These movements are reproduced by the robot at the patient site while holding the ultrasound probe against the patient skin. In addition, the user interface includes an image processing facility for enhancing the received images and the possibility to include them into a database.
Anselmo Caricato - One of the best experts on this subject based on the ideXlab platform.
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usefulness of transcranial Echography in patients with decompressive craniectomy a comparison with computed tomography scan
2012Co-Authors: Vittorio Mignani, Maria Grazia Bocci, Mariano Alberto Pennisi, Claudio Sandroni, Alessandra Tersali, Alessandra Antonaci, Chiara De Waure, M Antonelli, Anselmo CaricatoAbstract:Objective: To assess the agreement between computed tomog raphy and transcranial sonography in patients after decompres sive craniectomy. Design: Prospective study. Setting: The medical intensive care unit of a university-affiliated teaching hospital. Patients: Thirty head-injured patients consecutively admitted to the intensive care unit of “A. Gemelli” Hospital who underwent de compressive craniectomy were studied. Immediately before brain cranial tomography, transcranial ultrasonography was performed. Measurements and Main Results: The mean difference between computed tomography and Echography in measuring the disloca tion of midline structures was 0.3 1.6 mm (95% confidence interval 0.2–0.9 mm; intraclass correlation coefficient, 0.979; p .01). An excellent correlation was found between computed tomography and transcranial sonography in assessing volumes of hyperdense lesions (intraclass correlation coefficient, 0.993; p .01). Lesions that appear hypodense on computed tomography scan were divided in ischemic and late hemorrhagic. No ischemic lesion was localized on Echography; a poor correlation was found between computed tomography and Echography in assessing the volume of late hem orrhagic lesions (intraclass correlation coefficient, 0.151; p .53). A quite good correlation between transcranial ultrasonography and computed tomography was found in measuring lateral ventricles width (intraclass correlation coefficient, 0.967; p .01). Sensitivity and specificity of transcranial ultrasonography in comparison with computed tomography to detect the position of intracranial pres sure catheter was 100% and 78%. Conclusions: Echography may be a valid option to computed tomography in patients with decompressive craniectomy to assess the size of acute hemorrhagic lesions, to measure midline struc tures and the width of lateral ventricles, and to visualize the tip of the ventricular catheter. (Crit Care Med 2012; 40:
