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Titolo:
Changes in myometrial and junctional zone thickness and signal intensity: demonstration with kinematic T2-weighted MR imaging
Autore:
Masui, T; Katayama, M; Kobayashi, S; Nakayama, S; Nozaki, A; Kabasawa, H; Ito, T; Sakahara, H;
Indirizzi:
Seirei Hamamatsu Gen Hosp, Dept Radiol, Shizuoka 4308558, Japan Seirei Hamamatsu Gen Hosp Shizuoka Japan 4308558 Shizuoka 4308558, Japan Seirei Hamamatsu Gen Hosp, Dept Obstet & Gynecol, Shizuoka 4308558, Japan Seirei Hamamatsu Gen Hosp Shizuoka Japan 4308558 Shizuoka 4308558, Japan GE Yokogawa Med Syst, Applicat Res Grp, Hino, Tokyo, Japan GE Yokogawa MedSyst Hino Tokyo Japan plicat Res Grp, Hino, Tokyo, Japan Hamamatsu Univ, Sch Med, Dept Radiol, Shizuoka, Japan Hamamatsu Univ Shizuoka Japan iv, Sch Med, Dept Radiol, Shizuoka, Japan
Titolo Testata:
RADIOLOGY
fascicolo: 1, volume: 221, anno: 2001,
pagine: 75 - 85
SICI:
0033-8419(200110)221:1<75:CIMAJZ>2.0.ZU;2-H
Fonte:
ISI
Lingua:
ENG
Soggetto:
SPIN-ECHO SEQUENCES; UTERINE CONTRACTIONS; NONPREGNANT UTERUS; ADENOMYOSIS; CHOLANGIOPANCREATOGRAPHY; DIFFERENTIATION; ACQUISITION; ENHANCEMENT; ULTRASOUND; LEIOMYOMA;
Keywords:
uterus, anatomy; uterus, MR; uterus, myometrium;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Clinical Medicine
Life Sciences
Citazioni:
31
Recensione:
Indirizzi per estratti:
Indirizzo: Masui, T Seirei Hamamatsu Gen Hosp, Dept Radiol, 2-12-12 Sumiyoshi, Shizuoka 4308558, Japan Seirei Hamamatsu Gen Hosp 2-12-12 Sumiyoshi Shizuoka Japan 4308558
Citazione:
T. Masui et al., "Changes in myometrial and junctional zone thickness and signal intensity: demonstration with kinematic T2-weighted MR imaging", RADIOLOGY, 221(1), 2001, pp. 75-85

Abstract

PURPOSE: To demonstrate uterine contractions by evaluating changes during time in the thickness of the myometrium and junctional zone and in signal intensity of the uterus with T2-weighted fast magnetic resonance (MR) imagesin a kinematic fashion. MATERIALS AND METHODS: Sagittal MR imaging was performed with T2-weighted fast spin-echo (FSE) and multiphase-multisection single-shot FSE (SSFSE) in60 premenopausal patients during free breathing. SSFSE MR images were evaluated with cine display. The pattern of uterine contractions and changes insignal intensities of the uterine structures were evaluated. Thickness of both myometrium and junctional zone, and their signal intensities, were measured during 15 phases of SSFSE and FSE MR imaging. RESULTS: Slow-massive (mean, 55%), middle-cycle (mean, 80%), and fine (mean, 93%) contractions were observed. Shape of junctional zones dynamically changed during time, showing focal (mean, 58%) and diffuse (mean, 82%) thickening and wavelike motions (mean, 88%). Ratio of thickness of the myometrium to junctional zone with FSE MR imaging was not significantly different from the mean ratio during 15 phases of SSFSE MR imaging, although maximum percentage of change of the ratio during 15 phases was 42.5%-56.8%. The signal intensities of the myometrium (97%) and junctional zone (75%) changed during time. CONCLUSION: Kinematic T2-weighted SSFSE MR images demonstrate uterine contractions related to dynamic changes in thickness and signal intensities of the myometrium and junctional zone, and these findings might affect the diagnosis of uterine disease.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 26/11/20 alle ore 11:19:07