Myometrial invasion of endometrial carcinoma: Assessment with dynamic MR and contrast-enhanced T1-weighted images

Diagnostic Value of Dynamic Contrast-Enhanced MRI in Endometrial Cancer

“…Only 1 tumor showed decreased contrast enhancement in the delayed phase, which was inconsistent with the report in the literature. The maximum signal intensity in the delayed phase was lower in the tumors than in the adjacent normal tissue, but the signal intensity difference between tumors and normal tissues was higher in the delayed phase than in the early phase, consistent with the previous reports [10][11] , indicating that the delayed phase (300 s) was more favorable to delineate the lesions on DCE-MRI.…”

Evaluation of Gynecologic Cancer with MR Imaging, 18F-FDG PET/CT, and PET/MR Imaging

“…DCE MR imaging is routinely performed qualitatively in endometrial cancer patients to diagnose deep myometrial invasion, where it demonstrates 77%-88% sensitivity and 61%-100% specificity (37,38). Quantitative DCE MR imaging parameters have been reported to predict the outcome of cervical cancer radiotherapy (39) and to aid in discriminating benign from malignant adnexal masses (40).…”

The Usefulness of Diffusion-weighted Imaging in Observing Localized Extension of Endometrial Cancer

“…In the case of local extension, the reported rate of accurate diagnosis of myometrial invasion is 58 77 [21][22][23] .…”

“…In particular, a contrast dynamic study is highly effective, improving accuracy signi cantly from 58 77 with T2-enhanced images alone to 85 93 [21][22][23][24] . However, despite this improvement, it is believed that allergies to contrast agents and the fact that contrast agents cannot be used in patients with compromised renal function will mean that, in the future, it will become more important to implement presurgical diagnosis of endometrial cancer using non-contrast MRI, along with diagnosing localized extension prior to surgery using basic MRI technology.…”