TY - JOUR
T1 - Postprocessing of pelvic floor ultrasound data : how repeatable is it?
AU - Dietz, Hans P.
AU - Rojas, Rodrigo Guzman
AU - Shek, Ka Lai
PY - 2014
Y1 - 2014
N2 - Aims Translabial 3D/4D pelvic floor ultrasound (PFUS) is increasingly used in the evaluation of pelvic floor disorders. Commonly, this involves the analysis of stored volume data sets by postprocessing. In this study, we aimed to assess the time requirement to reaching acceptable repeatability for commonly employed outcome measures in PFUS. Methods Between 2010 and 2013, 20 individuals from 11 countries underwent training in postprocessing of PFUS volume data sets. They undertook test-retest series (n ≥ 20) between day 2 and day 15 of training. Outcome measures tested included levator hiatal area on Valsalva, descent of the bladder neck, bladder, uterus and rectal ampulla, and rectocele depth. After an initial training session of 10-20 cases, test-retest series were undertaken between the trainee and measurements obtained by the author or senior trainees. Results Trainees were obstetricians/gynaecologists in training (n = 4), obstetricians/gynaecologists or subspecialty trainees (n = 13), medical students (n = 1) and physiotherapists (n = 2). A total of 58 repeatability series were analysed, obtained between days 2 and 15 of training. When second or third retest series were necessary, there always was improvement in repeatability except for one series in one individual. Satisfactory repeatability (ICC > 0.7) was achieved by all trainees for all parameters required by them. Training lasted from 3 to 15 days, with means between 4 and 5.8 days. Conclusions Postprocessing analysis of commonly used PFUS parameters can be taught to an acceptable standard within 1 week. Most commonly used ultrasound parameters obtained by postprocessing for prolapse assessment can be taught to an acceptable standard of repeatability within one week.
AB - Aims Translabial 3D/4D pelvic floor ultrasound (PFUS) is increasingly used in the evaluation of pelvic floor disorders. Commonly, this involves the analysis of stored volume data sets by postprocessing. In this study, we aimed to assess the time requirement to reaching acceptable repeatability for commonly employed outcome measures in PFUS. Methods Between 2010 and 2013, 20 individuals from 11 countries underwent training in postprocessing of PFUS volume data sets. They undertook test-retest series (n ≥ 20) between day 2 and day 15 of training. Outcome measures tested included levator hiatal area on Valsalva, descent of the bladder neck, bladder, uterus and rectal ampulla, and rectocele depth. After an initial training session of 10-20 cases, test-retest series were undertaken between the trainee and measurements obtained by the author or senior trainees. Results Trainees were obstetricians/gynaecologists in training (n = 4), obstetricians/gynaecologists or subspecialty trainees (n = 13), medical students (n = 1) and physiotherapists (n = 2). A total of 58 repeatability series were analysed, obtained between days 2 and 15 of training. When second or third retest series were necessary, there always was improvement in repeatability except for one series in one individual. Satisfactory repeatability (ICC > 0.7) was achieved by all trainees for all parameters required by them. Training lasted from 3 to 15 days, with means between 4 and 5.8 days. Conclusions Postprocessing analysis of commonly used PFUS parameters can be taught to an acceptable standard within 1 week. Most commonly used ultrasound parameters obtained by postprocessing for prolapse assessment can be taught to an acceptable standard of repeatability within one week.
UR - http://handle.uws.edu.au:8081/1959.7/565413
U2 - 10.1111/ajo.12250
DO - 10.1111/ajo.12250
M3 - Article
SN - 1479-828X
SN - 0004-8666
VL - 54
SP - 553
EP - 557
JO - Australian and New Zealand Journal of Obstetrics and Gynaecology
JF - Australian and New Zealand Journal of Obstetrics and Gynaecology
IS - 6
ER -