著者

Satoshi Otani Aki Kido Yuki Himoto Akihiko Sakata Tomoaki Otani Ryo Kuwahara Yusaku Moribata Naoko Nishio Ryo Yajima Kyoko Nakao Yasuhisa Kurata Sachiko Minamiguchi Masaki Mandai Yuji Nakamoto

出版者

Japanese Society for Magnetic Resonance in Medicine

雑誌

Magnetic Resonance in Medical Sciences (ISSN:13473182)

巻号頁・発行日

pp.mp.2021-0003, (Released:2021-09-03)

参考文献数

26

被引用文献数

4

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Purpose: To compare the diagnostic performance of dynamic contrast-enhanced-MR (DCE-MR) and delayed contrast-enhanced (CE)-MRI added to unenhanced MRI, including diffusion weighted image (DWI) for differentiating malignant adnexal tumors, conducting a retrospective blinded image interpretation study.Methods: Data of 80 patients suspected of having adnexal tumors by ultrasonography between April 2008 and August 2018 were used for the study. All patients had undergone preoperative MRI and surgical resection at our institution. Four radiologists (two specialized in gynecological radiology and two non-specialized) were enrolled for blinded review of the MR images. A 3-point scale was used: 0 = benign, 1 = indeterminate, and 2 = malignant. Three imaging sets were reviewed: Set A, unenhanced MRI including DWI; Set B, Set A and delayed CE-T1WI; and Set C, Set A and DCE-MRI. Imaging criteria for benign and malignant tumors were given in earlier reports. The diagnostic performance of the three imaging sets of the four readers was calculated. Their areas under the curve (AUCs) were compared using the DeLong method.Results: Accuracies of Set B were 81%–88%. Those of Set C were 81%–85%. The AUCs of Set B were 0.83 and 0.89. Those of Set C were 0.81–0.86. For two readers, Set A showed lower accuracy and AUC than Set B/Set C (less than 0.80), although those were equivalent in other readers. No significant difference in AUCs was found among the three sequence sets. Intrareader agreement was moderate to almost perfect in Sets A and B, and substantial to almost perfect in Set C.Conclusion: DCE-MR showed no superiority for differentiating malignant adnexal tumors from benign tumors compared to delayed CE-T1WI with conventional MR and DWI.

著者

Ryo Yajima Yuya Ise Tetsuya Wako Shirou Katayama Junko Kizu

出版者

日本医科大学医学会

雑誌

Journal of Nippon Medical School (ISSN:13454676)

巻号頁・発行日

vol.80, no.6, pp.481-485, 2013 (Released:2014-01-10)

参考文献数

11

被引用文献数

1

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Preventing infectious diseases in patients with cancer receiving palliative care is extremely important. However, little is known about the factors causing infection in these patients. The aim of this study was to clarify the factors contributing to infection in patients with cancer receiving palliative care. The medical records of each patient were reviewed, and patient characteristics were recorded. Factors that correlated significantly with infection, as revealed by univariate analysis, were performance status, the fall risk assessment score, and venous catheters. Our present study provides further evidence that the fall risk assessment score is a risk factor for infection. Critical infections might be prevented in patients with cancer receiving palliative care by monitoring the above 3 factors.