Masako Kataoka

PurposeTo investigate magnetic resonance (MR) findings and to detect malignant transformation of ovarian endometriotic cysts by comparing longitudinal changes in patients with ovarian malignant/borderline tumors associated with ovarian endo…

Background Although age-related change of junctional zone (JZ) of the uterus has been known, there has been no previous systematic study of age-related changes of uterine peristalsis that is observed as the wave conduction of the thickest o…

OBJECTIVES: To assess the detectability of a low-signal-intensity line within adenomyosis lesions adjacent to the endometrium on apparent diffusion coefficient (ADC) maps, and to establish correlations between these lesions and their possib…

BACKGROUND: Uterine peristalsis is supposed to be closely related to the early stages of reproduction. Sperms are preferentially transported from the uterine cervix to the side of the tube with the dominant follicle. However, with respect t…

PURPOSE: To evaluate the ability of automated software to quantify uterine peristalsis on cine magnetic resonance imaging (MRI). MATERIALS AND METHODS: At 1.5T, half-Fourier acquisition single-shot turbo spin echo (HASTE) techniques were us…

PURPOSE: The purpose of the study was to investigate the magnetic resonance imaging findings of decidualized endometriotic cysts in comparison with endometriotic cysts associated with ovarian cancers. METHODS: Eighteen decidualized endometr…

Cystic disease in the female pelvis is common. The majority of cystic pelvic masses originate in the ovary, and they can range from simple, functional cysts to malignant ovarian tumors. Mimics of ovarian cystic masses include peritoneal inc…

PURPOSE: To compare the image quality of water-only images generated from a dual-echo Dixon technique with that of standard fast spin-echo T1-weighted chemical shift fat-suppressed images obtained in patients evaluated for pelvic pain with …

BackgroundUterine peristalsis, which is influenced by hormonal and cholinergic effects, may have a role in successful implantation and continuing pregnancy.CasesWe encountered abnormal uterine peristalsis in three women who had had repeated…

PURPOSE: To prospectively evaluate anticholinergic drug effects on uterine peristalsis and sporadic myometrial contractions, as well as on intestinal motion, with cine magnetic resonance (MR) imaging. MATERIALS AND METHODS: This prospective…

BackgroundIn women of reproductive age, wavelike movements of the subendometrial myometrium, which is called uterine peristalsis, is considered to be related with fertility and menstrual problems. This is because the direction and frequency…

Endometriosis is one of the most common gynecological diseases. Typical imaging findings of endometrial cysts are well known, and MR imaging helps to confirm the diagnosis. However, endometriosis can produce a variety of findings, and prese…

This report describes MR findings of müllerian mucinous borderline tumors, pathologically proven to have arisen from endometriotic cysts, in three patients. They were unilocular or paucilocular masses with mural nodules. Cystic components s…