Dr Ahmed Nasr graduated from Assiut School of Medicine, Egypt in 1988, where he is still on the staff. Over the past 29 years, his training in Obstetrics and Gynecology has taken him to several institutions in Great Britain, Germany and USA. His special interests include reproductive biology, reproductive endocrinology, minimally invasive surgery and infertility. He has published extensively and has received awards including the German Academic Exchange (DAAD) Scholarship (1995–1997), the Royal College of Obstetricians & Gynaecologists Menopause Travel Award (2001), the John J Sciarra IJGO Prize Paper Award for the best clinical research article in 2007 and the 2013 Society of Reproductive Surgeons (SRS) Prize Paper Award. Phone: +201012588888 Address: 1 University Ave, Women's Health Center
Distension versus traction in laparoscopically assisted balloon vaginoplasty for management of va... more Distension versus traction in laparoscopically assisted balloon vaginoplasty for management of vaginal aplasia
ABSTRACT Objective To determine the two-dimensional and Doppler sonographic features that best al... more ABSTRACT Objective To determine the two-dimensional and Doppler sonographic features that best allow differentiation between malignant and benign adnexal masses, besides develop a new scoring system enable more accurate diagnosis with these features. Patients and methods A cross sectional prospective study was conducted on patients scheduled for surgery due to presence of adnexal masses at Women's Health Hospital, Assiut, Egypt between October 2012 and October 2013. All patients were evaluated by 2D ultrasound for morphological features of the masses aided by Doppler examination of their vessels. The examinations were performed by the same sonographer to differentiate between benign and malignant adnexal masses. The final diagnosis was based on either, histopathological reports or operative findings, used as gold standards. Results One hundred forty-six patients were recruited, 104 with benign masses, 42 with malignant masses. Features that allowed statistically significant discrimination of benignity from malignancy were; volume of mass, type of mass, presence and thickness of septae, presence and length of papillary projections, location of vessels at colour Doppler and colour score. A scoring formula was supposed combined those features together to develop a new scoring system; Assiut Scoring System (ASS). The cut-off score with the highest accuracy in detection of malignancy had a sensitivity of 93.5% and specificity of 92.2%. Conclusion Assiut Scoring System; a multiparameter scoring that use four 2D ultrasound and two Doppler features, has a high sensitivity and specificity for prediction of malignancy in adnexal masses. Key words Adnexal mass – Doppler – scoring system – ovarian cancer.
To determine the most discriminating two-dimensional gray-scale and colour Doppler sonographic fe... more To determine the most discriminating two-dimensional gray-scale and colour Doppler sonographic features that allow differentiation between malignant and benign adnexal masses, and to develop a scoring model that would enable more accurate diagnosis with those features. A cross sectional prospective study was conducted on patients scheduled for surgery due to presence of adnexal masses at Woman's Health Center, Assiut University, Egypt between October 2012 and October 2013. All patients were evaluated by 2D ultrasound for morphological features of the masses combined with colour Doppler examination of their vessels. The final diagnosis, based on histopathological analysis, was used as a gold standard. One hundred forty-six patients were recruited, 104 with benign masses, 42 with malignant masses. Features that allowed statistically significant discrimination of benignity from malignancy were; volume of mass, type of mass, presence and thickness of septae, presence and length of papillary projections, location of vessels at colour Doppler and colour score. A scoring model was formulated combining these features together; Assiut Scoring Model (ASM). The cut-off level with the highest accuracy in detection of malignancy, was ≥6, had a sensitivity of 93.5% and specificity of 92.2%. Our Scoring Model; a multiparameter scoring using four gray-scale ultrasound and two colour Doppler features, had shown a high sensitivity and specificity for prediction of malignancy in adnexal masses compared with previous scoring systems.
Distension versus traction in laparoscopically assisted balloon vaginoplasty for management of va... more Distension versus traction in laparoscopically assisted balloon vaginoplasty for management of vaginal aplasia
ABSTRACT Objective To determine the two-dimensional and Doppler sonographic features that best al... more ABSTRACT Objective To determine the two-dimensional and Doppler sonographic features that best allow differentiation between malignant and benign adnexal masses, besides develop a new scoring system enable more accurate diagnosis with these features. Patients and methods A cross sectional prospective study was conducted on patients scheduled for surgery due to presence of adnexal masses at Women's Health Hospital, Assiut, Egypt between October 2012 and October 2013. All patients were evaluated by 2D ultrasound for morphological features of the masses aided by Doppler examination of their vessels. The examinations were performed by the same sonographer to differentiate between benign and malignant adnexal masses. The final diagnosis was based on either, histopathological reports or operative findings, used as gold standards. Results One hundred forty-six patients were recruited, 104 with benign masses, 42 with malignant masses. Features that allowed statistically significant discrimination of benignity from malignancy were; volume of mass, type of mass, presence and thickness of septae, presence and length of papillary projections, location of vessels at colour Doppler and colour score. A scoring formula was supposed combined those features together to develop a new scoring system; Assiut Scoring System (ASS). The cut-off score with the highest accuracy in detection of malignancy had a sensitivity of 93.5% and specificity of 92.2%. Conclusion Assiut Scoring System; a multiparameter scoring that use four 2D ultrasound and two Doppler features, has a high sensitivity and specificity for prediction of malignancy in adnexal masses. Key words Adnexal mass – Doppler – scoring system – ovarian cancer.
To determine the most discriminating two-dimensional gray-scale and colour Doppler sonographic fe... more To determine the most discriminating two-dimensional gray-scale and colour Doppler sonographic features that allow differentiation between malignant and benign adnexal masses, and to develop a scoring model that would enable more accurate diagnosis with those features. A cross sectional prospective study was conducted on patients scheduled for surgery due to presence of adnexal masses at Woman's Health Center, Assiut University, Egypt between October 2012 and October 2013. All patients were evaluated by 2D ultrasound for morphological features of the masses combined with colour Doppler examination of their vessels. The final diagnosis, based on histopathological analysis, was used as a gold standard. One hundred forty-six patients were recruited, 104 with benign masses, 42 with malignant masses. Features that allowed statistically significant discrimination of benignity from malignancy were; volume of mass, type of mass, presence and thickness of septae, presence and length of papillary projections, location of vessels at colour Doppler and colour score. A scoring model was formulated combining these features together; Assiut Scoring Model (ASM). The cut-off level with the highest accuracy in detection of malignancy, was ≥6, had a sensitivity of 93.5% and specificity of 92.2%. Our Scoring Model; a multiparameter scoring using four gray-scale ultrasound and two colour Doppler features, had shown a high sensitivity and specificity for prediction of malignancy in adnexal masses compared with previous scoring systems.
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