Assessment of Uterine Cavity Size and Shape: A Systematic Review Addressing Relevance to Intrauterine Procedures and Events
Abstract
Uterine cavity measurement began with evaluation of post-mortem and surgical specimens. It has been extended in vivo by use of mechanical instruments and visualization techniques. This is a systematic review of the range of values for the uterine cavity and the practical implications of these measurements, Following a review of multiple data bases & a QUORUM analysis. Only articles with clearly defined quantitative measurements were included. Mechanical cavity measurements with a variety of instruments gave a mean endometrial cavity length (ECL) of 33.73mm (18-22.1) and a mean endometrial cavity width (ECW) of 25.1mm (17.8-32.2) for nulliparae. The values for multiparae were mean ECL 38.6mm(20.61-40.3) and mean ECW 34.9mm (23.4-53).Imaging measurements for the uterine cavity by hysterography and ultrasound were mean ECL 44.3mm (29-64) for multiparae and ECL 37mm for nulliparae. Mean ECW was 28.2mm (21-33) for nulliparae and 32.1mm (26-38) for multiparae. There were wide variations due to parity, ethnicity and gestational states. Accurate measurement of intrauterine parameters is valuable for improving and enhancing many intrauterine procedures including IUD insertion, endometrial ablation, embryo placement in IVF and management of spontaneous and therapeutic abortion. (Afr J Reprod Health 2012; 16[3]: 129-138).
Résumé
La mesure de la cavité utérine a commencé avec l'évaluation des échantillons post-mortem et chirurgicaux. Il a été prolongé in vivo par l'utilisation des instruments mécaniques et des techniques de visualisation. Il s'agit d'une revue systématique de l’étendue de valeurs pour la cavité utérine et les implications pratiques de ces mesures, suite d'un examen des bases de données multiples et quelques articles et d’analyse de Quorum. Seuls les articles dont les mesures quantitatives étaient bien définies ont été retenus. Les mesures de la cavité mécanique réalisées à l’aide des divers instruments ont donné une longueur de cavité endométriale moyenne(LCE) de 33.73mm (18 à 22,1) et une largeur de cavité endométriale moyenne de la cavité endométriale (LgCE) de 25.1mm (17,8 à 32,2) pour les nullipares. Les valeurs pour les multipares étaient LCE 38.6mm (20,61 à 40,3) et la moyenne pour LgCE était 34.9mm (23.4 à 53). Les mesures d'imagerie pour la cavité utérine à l’aide de l’hystérographie et l'échographie LCE 44.3mm (29-64) pour les multipares et LCE 37mm pour nullipares. La LgCE moyenne était 28.2mm (21-33) pour les nullipares et 32.1mm (26-38) pour les multipares. Il y avait de grandes variations en raison de la parité, l'appartenance ethnique et les états gestationnels. Une mesure exacte des paramètres intra-utérins est importante pour l’amélioration et le renforcement de nombreuses procédures intra-utérines, y compris l'insertion du DIU, l’ablation de l'endomètre, la mise en place d'embryons dans la FIV et du traitement de l'avortement spontané et thérapeutique (Afr J Reprod Health 2012; 16[3]: 129-138).
Keywords: intrauterine, uterine cavity, measurement, endometrial
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