Comparison of 1.5 T (Tesla) and 3.0 T (Tesla) Magnetic Resonance Imaging for Evaluating Local Extension of Endometrial Cancer

• YAGI Naomi

  Department of Radiology, Showa University School of Medicine

• HIROSE Masanori

  Department of Radiology, Showa University School of Medicine

• OHGIYA Yoshimitsu

  Department of Radiology, Showa University School of Medicine

• SAIKI Makoto

  Department of Radiology, Showa University School of Medicine

• HATANO Kumi

  Department of Radiology, Showa University School of Medicine

• NOZOMI Bell

  Department of Radiology, Showa University School of Medicine

• GOKAN Takehiko

  Department of Radiology, Showa University School of Medicine

抄録

Magnetic resonance imaging (MRI) is an important means of evaluating local extension of endometrial cancer. The 3.0 Tesla (T) MRI system introduced in 2005 improved the diagnostic capabilities of this modality due to an increased signal to noise ratio; however, it was also susceptible to artifacts and debate remains regarding the clinical applicability of 3.0 T MRI in the pelvic region. A few reports have compared 1.5 T and 3.0 T MRI for determining the degree of progression of endometrial cancer. Therefore, we conducted a comparative study of the diagnostic capability of 1.5 T and 3.0 T MRI for the local extension of endometrial cancer. Over the 6 years and 8 months from 1 January 2008 to 30 August 2014, preoperative MRI has been conducted at our hospital including T2-weighted imaging, diffusion-weighted imaging, and dynamic contrast-enhanced MRI for cases of endometrioid adenocarcinoma requiring surgery. We investigated 60 subjects after excluding cases for which the tumor could not be imaged and cases that underwent surgery 2 months or more after undergoing MRI. Two radiologists used magnetic resonance images taken preoperatively to determine local extension using T2-weighted, diffusion-weighted, and dynamic-study images. Results for local extension were compared with those of postoperative histopathology. Results indicated no significant difference in accurate diagnosis rates between 1.5 T and 3.0 T MRI for any of the imaging modalities examined by both radiologists.

収録刊行物

• Ｔｈｅ　Ｓｈｏｗａ　Ｕｎｉｖｅｒｓｉｔｙ　Ｊｏｕｒｎａｌ　ｏｆ　Ｍｅｄｉｃａｌ　Ｓｃｉｅｎｃｅｓ

  Ｔｈｅ　Ｓｈｏｗａ　Ｕｎｉｖｅｒｓｉｔｙ　Ｊｏｕｒｎａｌ　ｏｆ　Ｍｅｄｉｃａｌ　Ｓｃｉｅｎｃｅｓ 27 (1), 21-28, 2015

  昭和大学学士会

キーワード

• MRI
• endometrial cancer
• 3.0 T MRI
• extension of endometrial cancer

詳細情報

• CRID: 1390001204371972864
• NII論文ID: 130005096784
• NII書誌ID: AA10781651
• DOI: 10.15369/sujms.27.21
• ISSN: 21850968
• ISSN: 09156380
• Web Site: http://id.nii.ac.jp/1670/00000582/
• Web Site: https://www.jstage.jst.go.jp/article/sujms/27/1/27_21/_pdf
• Web Site: https://search.jamas.or.jp/link/ui/2016216172
• 本文言語コード: en
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