1. Improving image quality of mid‐trimester fetal sonography in obese women: role of ultrasound propagation velocity
- Author
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Debost-Legrand, Anne, Chauveau, B., Auclair, C., Legrand, A., Mangione, R., Gerbaud, L., Vendittelli, F., Boyer, L., LEMERY, D., Institut Pascal (IP), SIGMA Clermont (SIGMA Clermont)-Université Clermont Auvergne [2017-2020] (UCA [2017-2020])-Centre National de la Recherche Scientifique (CNRS), Service d'Epidémiologie, CHU Clermont-Ferrand, IRCELYON-Ingéniérie, du matériau au réacteur (ING), Institut de recherches sur la catalyse et l'environnement de Lyon (IRCELYON), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), and CHU Gabriel Montpied [Clermont-Ferrand]
- Subjects
Image quality ,Fetal ultrasonography ,[SDV.MHEP.GEO]Life Sciences [q-bio]/Human health and pathology/Gynecology and obstetrics ,Ultrasonography, Prenatal ,030218 nuclear medicine & medical imaging ,03 medical and health sciences ,0302 clinical medicine ,Pregnancy ,Humans ,Mid trimester ,Medicine ,Radiology, Nuclear Medicine and imaging ,Obesity ,ComputingMilieux_MISCELLANEOUS ,Scanning plane ,[SDV.MHEP.PED]Life Sciences [q-bio]/Human health and pathology/Pediatrics ,030219 obstetrics & reproductive medicine ,Radiological and Ultrasound Technology ,business.industry ,Ultrasound ,Obstetrics and Gynecology ,General Medicine ,Image enhancement ,Image Enhancement ,Layer thickness ,Pregnancy Complications ,Cross-Sectional Studies ,Reproductive Medicine ,Female ,[SDV.SPEE]Life Sciences [q-bio]/Santé publique et épidémiologie ,Pregnancy Trimesters ,business ,Nuclear medicine - Abstract
OBJECTIVE The quality of ultrasound images is impaired in obese patients. All ultrasound scanners are calibrated for an ultrasound propagation velocity of 1540 m/s, but the propagation in fatty tissue is slower (in the order of 1450 m/s). The main objective of this study was to evaluate the quality of images obtained with different ultrasound propagation velocity settings during the mid-trimester fetal ultrasound examination in obese patients. METHODS This was a cross-sectional study using image sets of four recommended scanning planes collected from 32 obese pregnant women during their mid-trimester fetal scan. Each image set comprised three images obtained successively at three different propagation velocity settings (1540 m/s, 1480 m/s and 1420 m/s). A panel of 114 experts assessed the quality of 100 image sets, grading them from A (most acceptable) to C (least acceptable). Scanning-plane-specific indicators of adiposity (fatty layer thickness, probe-to-organ distance) were analyzed for each scanning plane. RESULTS The experts had a mean of 18.1 ± 10.2 years of experience. The grade distribution (A, B, C) differed significantly (P
- Published
- 2018