Ryan Longman’s scientific career, spanning 20 years, includes research on the genetics of rheumatic disease and epilepsy, the effects of partial course antenatal corticosteroids on lung maturity of preterm infants, the effects of vaginal delivery on pelvic floor support, and the effects of body mass index on maternal and perinatal outcomes. He also helped to create a cell phone interface program used with portable ultrasound probes for fetal assessment in remote areas.
He has served as a volunteer physician for the Victor Center, improving access for genetic disorders carrier screening, and was committee chair of the Greater Miami Jewish Federation Maimonides Society, supporting social services for individuals in need.
Longman’s academic career began at the University of Pennsylvania, where he majored in biology. After a two-year research fellowship at the National Institutes of Health, he pursued an MD at Thomas Jefferson University. He completed a residency in obstetrics and gynecology at the Mount Sinai School of Medicine in New York, a fellowship in maternal-fetal medicine, and a second residency in medical genetics at the University of Michigan Medical School. He was most recently the director of the Division of Reproductive Genetics for the Department of Obstetrics and Gynecology at the University of Miami.
Hybrid artificial intelligence echogenic components-based diagnosis of adnexal masses on ultrasound.
Hybrid artificial intelligence echogenic components-based diagnosis of adnexal masses on ultrasound. ArXiv. 2025 Apr 16.
PMID: 40321943
O-RADS US Version 2022 Improves Patient Risk Stratification When Compared with O-RADS US Version 2019.
O-RADS US Version 2022 Improves Patient Risk Stratification When Compared with O-RADS US Version 2019. Radiology. 2025 Mar; 314(3):e242200.
PMID: 40100018
AI-based automated segmentation for ovarian/adnexal masses and their internal components on ultrasound imaging.
AI-based automated segmentation for ovarian/adnexal masses and their internal components on ultrasound imaging. J Med Imaging (Bellingham). 2024 Jul; 11(4):044505.
PMID: 39114540
Diagnostic Performance of Ultrasonography-Based Risk Models in Differentiating Between Benign and Malignant Ovarian Tumors in a US Cohort.
Diagnostic Performance of Ultrasonography-Based Risk Models in Differentiating Between Benign and Malignant Ovarian Tumors in a US Cohort. JAMA Netw Open. 2023 07 03; 6(7):e2323289.
PMID: 37440228
Small Bowel Adenocarcinoma Metastatic to the Ovaries: A Challenging Diagnosis.
Small Bowel Adenocarcinoma Metastatic to the Ovaries: A Challenging Diagnosis. Ultraschall Med. 2023 08; 44(4):e206-e208.
PMID: 36882108
Immunological Role of the Maternal Uterine Microbiome in Pregnancy: Pregnancies Pathologies and Alterated Microbiota.
Immunological Role of the Maternal Uterine Microbiome in Pregnancy: Pregnancies Pathologies and Alterated Microbiota. Front Immunol. 2019; 10:2823.
PMID: 31969875