Endometrial Carcinoma: Dynamic MRI with Turbo-FLASH Technique

Joja, Ikuo; Asakawa, Mari; Asakawa, T.; Nakagawa, Tomio; Kanazawa, Susumu; Kuroda, Masahiro; Togami, Izumi; Hiraki, Yoshio; Akamatsu, N.; Kudo, Takafumi

doi:10.1097/00004728-199611000-00003

Cited by 58 publications

(45 citation statements)

References 29 publications

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“…The usefulness of T2-weighted images in the diagnosis of endometrial carcinoma has been recognized [4 -12], and there have been several recent reports supporting the usefulness of contrast-enhanced T1-weighted images or dynamic MR images using fast imaging techniques [13][14][15]. However, these previous reports have dealt mainly with the usefulness of contrast-enhanced images for evaluating the depth of myometrial invasion by endometrial carcinoma.…”

Section: Discussionmentioning

confidence: 99%

“…Magnetic resonance (MR) imaging has been used for the diagnosis of many gynecologic disorders, and MR imaging has been playing a more important role than computed tomography in the diagnosis of gynecologic disorders. T2-weighted images have been reported to be useful for the diagnosis of endometrial carcinoma [4 -12], and contrast-enhanced T1-weighted images or dynamic MR images have been reported to be more useful than T2-weighted images [13][14][15]. Takahashi et al [16] reported on the usefulness of T2-weighted fast spin-echo MR imaging with a multiple surface coil and a 512 ϭ 256 matrix in the preoperative assessment of endometrial carcinoma.…”

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confidence: 99%

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Endometrial carcinoma: efficacy of thin-section oblique axial MR images for evaluating cervical invasion

et al. 1999

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Section: Discussionmentioning

confidence: 99%

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Endometrial carcinoma: efficacy of thin-section oblique axial MR images for evaluating cervical invasion

et al. 1999

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“…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.…”

Section: Discussionmentioning

confidence: 99%

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

Bell

Yagi

Hatano

et al. 2014

Showa Univ J Med Sci

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: Endometrial cancer is the seventh most common human malignancy and the most common form of cancer treated in women by obstetrics and gynecology departments. Until now, magnetic resonance imaging MRI has been used for pre-surgical evaluation of endometrial cancer and evaluating the depth of myometrial invasion, in addition to being a valuable diagnostic tool. Diffusion-weighted imaging DWI has been reported as useful in distinguishing between benign and malignant tumors when observing lesions in the endometrium. Subsequent reports suggest that DWI is also effective in identifying malignancy and diagnosing local extension in a range of tissues. Based on this, we implemented a study of the effectiveness of DWI in identifying local extension of endometrial cancer. This study enrolled patients undergoing surgery at this hospital for cancer of the uterine body during the six years from January 2008 to February 2014. Cases in which images were unclear or the lesions were too small to be described by MRI examination were excluded, leaving 61 patients in the study. Using the results from pre-surgical MRI, a sequence comprising a T2-weighted axial view alone and a T2-weighted axial view to which a diffusion-weighted axial view had been added was created for each patient. Two radiologists then independently examined the image sequence to determine localized extension. Following surgery, the presurgical assessment was compared to the localized extension determined by histopathology of post-surgical samples to evaluate the effectiveness of adding diffusionweighted imaging to the process. The rst radiographic interpreter s rate of correct diagnosis using the T2-weighted axial view alone was 45 out of 55 cases 81.8 , while using the T2-weighted axial view to which a diffusion-weighted axial view had been added gave a correct diagnosis rate of 51 out of 55 cases 92.7 . The second radiographic interpreter s rate of correct diagnosis using the T2-weighted axial view alone was 41 out of 55 cases 74.5 , while using the T2-weighted axial view with diffusion-weighted axial view added gave a correct diagnosis rate of 51 out of 55 cases 92.7 . These differences were statistically signi cant based on the McNemar testing. This study con rmed that DWI is an effective means of diagnosing localized extension from images. It is anticipated that DWI will be used in the future clinical workplace to provide more accurate pre-surgical diagnoses.

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“…Thus, making such determinations as accurately as possible and planning appropriate treatment preoperatively are essential to improving the results of treatment of endometrial carcinoma and patients' quality of life (QOL). The accuracy of MRI evaluation of depth of cancer invasion appears to be improved by gadolinium contrast enhancement, and in recent years dynamic MRI has drawn attention as a highly accurate method of diagnosing the depth of invasion of endometrial carcinoma (5,6); it is now being performed in many institutions. However, two-dimensional is the most common method of high-speed T1-weighted imaging and since relatively thick slices are needed, it inherently involves such problems as difficulty in visualizing lesions under 1 cm.…”

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confidence: 99%

Myometrial invasion and cervical invasion by endometrial carcinoma: Evaluation by CO₂‐volumetric interpolated breathhold examination (VIBE)

Akaeda

Isaka

Takayama

et al. 2005

Magnetic Resonance Imaging

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Purpose: To assess myometrial invasion and cervical invasion by endometrial carcinoma, using CO 2 -volumetric interpolated breathhold examination (VIBE) enabling more precise evaluation of depth of tumor invasion.Materials and Methods: CO 2 -VIBE was performed in 21 cases of endometrial carcinoma (Stage Ia-IIb) prior to treatment. The images were interpreted by performing multiplanar reconstruction (MPR), and the findings obtained from the images (degree of myometrial invasion and presence or absence of cervical invasion) were assessed in comparison with the histopathological diagnosis. Results:The sites of the endometrial carcinoma lesions were clearly visualized by the CO 2 -VIBE method. Evaluation of the degree of myometrial invasion enabled a high correct diagnosis rate of 90.5%, and evaluation for the presence of cervical invasion also allowed a high correct diagnosis rate of 90.5%. Conclusion:VIBE permits evaluation of any plane desired by means of thin slices, and it is a truly revolutionary method for preoperative evaluation of depth of invasion of endometrial carcinoma that enables highly accurate determination of the extent of lesion sites and degree of invasion before treatment.

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Endometrial Carcinoma: Dynamic MRI with Turbo-FLASH Technique

Abstract: Dynamic MRI with the turbo-FLASH technique is considered to be a useful imaging method for the estimation of myometrial invasion by endometrial carcinoma, especially in postmenopausal patients.

Cited by 58 publications

References 29 publications

Endometrial carcinoma: efficacy of thin-section oblique axial MR images for evaluating cervical invasion

Endometrial carcinoma: efficacy of thin-section oblique axial MR images for evaluating cervical invasion

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

Myometrial invasion and cervical invasion by endometrial carcinoma: Evaluation by CO₂‐volumetric interpolated breathhold examination (VIBE)

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Endometrial Carcinoma: Dynamic MRI with Turbo-FLASH Technique

Abstract: Dynamic MRI with the turbo-FLASH technique is considered to be a useful imaging method for the estimation of myometrial invasion by endometrial carcinoma, especially in postmenopausal patients.

Cited by 58 publications

References 29 publications

Endometrial carcinoma: efficacy of thin-section oblique axial MR images for evaluating cervical invasion

Endometrial carcinoma: efficacy of thin-section oblique axial MR images for evaluating cervical invasion

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

Myometrial invasion and cervical invasion by endometrial carcinoma: Evaluation by CO2‐volumetric interpolated breathhold examination (VIBE)

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Myometrial invasion and cervical invasion by endometrial carcinoma: Evaluation by CO₂‐volumetric interpolated breathhold examination (VIBE)