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Moro F, Scavello I, Maseroli E, Rastrelli G, Baima Poma C, Bonin C, Dassie F, Federici S, Fiengo S, Guccione L, Villani M, Gambineri A, Mioni R, Moghetti P, Moretti C, Persani L, Scambia G, Giorgino F, Vignozzi L. The physiological sonographic features of the ovary in healthy subjects: a joint systematic review and meta-analysis by the Italian Society of Gynecology and Obstetrics (SIGO) and the Italian Society of Endocrinology (SIE). J Endocrinol Invest 2023; 46:439-456. [PMID: 36422829 PMCID: PMC9938076 DOI: 10.1007/s40618-022-01939-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Accepted: 10/11/2022] [Indexed: 11/25/2022]
Abstract
PURPOSE There is a lack of uniformity in the definition of normal ovary ultrasound parameters. Our aim was to summarize and meta-analyze the evidence on the topic. Full-text English articles published through December 31, 2020 were retrieved via MEDLINE and Embase. Data available for meta-analysis included: ovarian follicular count, ovarian volume, and ovarian Pulsatility Index (PI) assessed by Doppler ultrasound. METHODS Cohort, cross-sectional, prospective studies with a single or double arm were considered eligible. Interventional studies were included when providing baseline data. Both studies on pre- and post-menopausal women were screened; however, data on menopausal women were not sufficient to perform a meta-analysis. Studies on pre-pubertal girls were considered separately. Eighty-one papers were included in the meta-analysis. RESULTS The mean ovarian volume was 6.11 [5.81-6.42] ml in healthy women in reproductive age (5.81-6.42) and 1.67 ml [1.02-2.32] in pre-pubertal girls. In reproductive age, the mean follicular count was 8.04 [7.26-8.82] when calculated in the whole ovary and 5.88 [5.20-6.56] in an ovarian section, and the mean ovarian PI was 1.86 [1.35-2.37]. Age and the frequency of the transducers partly modulated these values. In particular, the 25-30-year group showed the higher mean follicular count (9.27 [7.71-10.82]), followed by a progressive age-related reduction (5.67 [2.23-9.12] in fertile women > 35 years). A significant difference in follicular count was also found according to the transducer's upper MHz limit. CONCLUSION Our findings provide a significant input to improve the interpretation and diagnostic accuracy of ovarian ultrasound parameters in different physiological and pathological settings.
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Affiliation(s)
- F Moro
- Dipartimento Scienze della Salute della Donna, del Bambino e di Sanità Pubblica, Fondazione Policlinico Universitario Agostino Gemelli, IRCCS, Rome, Italy
| | - I Scavello
- Department of Experimental Clinical and Biomedical Sciences "Mario Serio", University of Florence, Viale Pieraccini 6, 50134, Florence, Italy
| | - E Maseroli
- Andrology, Women's Endocrinology and Gender Incongruence Unit, Azienda Ospedaliero-Universitaria Careggi, Florence, Italy
| | - G Rastrelli
- Department of Experimental Clinical and Biomedical Sciences "Mario Serio", University of Florence, Viale Pieraccini 6, 50134, Florence, Italy
- Andrology, Women's Endocrinology and Gender Incongruence Unit, Azienda Ospedaliero-Universitaria Careggi, Florence, Italy
| | - C Baima Poma
- Consultorio Familiare ASL Città di Torino, Turin, Italy
| | - C Bonin
- Unit of Obstetrics and Gynecology B, Department of Women and Children's Health, AOUI Verona, Verona, Italy
| | - F Dassie
- Department of Medicine, Clinica Medica 3-Azienda Ospedaliera, University of Padua, Padua, Italy
| | - S Federici
- Unit of Andrology and Reproductive Endocrinology, Department of Endocrine and Metabolic Diseases, IRCCS Istituto Auxologico Italiano, 20149, Milan, Italy
| | - S Fiengo
- Department of Obstetrics and Gynaecology, ARNAS Civico Hospital, Palermo, Italy
| | - L Guccione
- Department of Systems' Medicine, University of Tor Vergata, Rome, Italy
| | - M Villani
- Unit of Endocrinology, Diabetes and Metabolism, Department of Medicine, University of Verona, Verona, Italy
| | - A Gambineri
- Division of Endocrinology and Diabetes Prevention and Care, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy
- Department of Medical and Surgical Sciences (DIMEC), Alma Mater Studiorum University of Bologna, Bologna, Italy
| | - R Mioni
- Department of Medicine, Clinica Medica 3-Azienda Ospedaliera, University of Padua, Padua, Italy
| | - P Moghetti
- Unit of Endocrinology, Diabetes and Metabolism, Department of Medicine, University of Verona, Verona, Italy
| | - C Moretti
- Department of Systems' Medicine, University of Tor Vergata, Rome, Italy
| | - L Persani
- Unit of Andrology and Reproductive Endocrinology, Department of Endocrine and Metabolic Diseases, IRCCS Istituto Auxologico Italiano, 20149, Milan, Italy
- Department of Medical Biotechnology and Translational Medicine, University of Milan, 20121, Milan, Italy
| | - G Scambia
- Istituto Di Clinica Ostetrica E Ginecologica, Università Cattolica del Sacro Cuore, Rome, Italy
| | - F Giorgino
- Section of Internal Medicine, Endocrinology, Andrology and Metabolic Diseases, Department of Emergency and Organ Transplantation, University of Bari Aldo Moro, Bari, Italy
| | - L Vignozzi
- Department of Experimental Clinical and Biomedical Sciences "Mario Serio", University of Florence, Viale Pieraccini 6, 50134, Florence, Italy.
- Andrology, Women's Endocrinology and Gender Incongruence Unit, Azienda Ospedaliero-Universitaria Careggi, Florence, Italy.
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