著者

Tadao Aikawa Jiro Ogino Nozomi Aikawa Noriko Oyama-Manabe

出版者

The Japanese Society of Internal Medicine

雑誌

Internal Medicine (ISSN:09182918)

巻号頁・発行日

vol.61, no.10, pp.1623-1624, 2022-05-15 (Released:2022-05-15)

被引用文献数

2

著者

Toshiyuki Nagai Takayuki Inomata Takashi Kohno Takuma Sato Atsushi Tada Toru Kubo Kazufumi Nakamura Noriko Oyama-Manabe Yoshihiko Ikeda Takeo Fujino Yasuhide Asaumi Takahiro Okumura Toshiyuki Yano Kazuko Tajiri Hiroyuki Matsuura Yuichi Baba Haruki Sunami Shingo Tsujinaga Yasutoshi Ota Keiko Ohta-Ogo Yusuke Ishikawa Hideo Matama Nobutaka Nagano Kimi Sato Kazushi Yasuda Yasushi Sakata Koichiro Kuwahara Tohru Minamino Minoru Ono Toshihisa Anzai on behalf of the Japanese Circulation Society Joint Working Group

出版者

The Japanese Circulation Society

雑誌

Circulation Journal (ISSN:13469843)

巻号頁・発行日

pp.CJ-22-0696, (Released:2023-03-10)

被引用文献数

17

著者

Kazuhiro Koyanagawa Yuta Kobayashi Tadao Aikawa Atsuhito Takeda Hideaki Shiraishi Satonori Tsuneta Noriko Oyama-Manabe Hiroyuki Iwano Toshiyuki Nagai Toshihisa Anzai

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.bc.2020-0069, (Released:2020-09-07)

参考文献数

18

被引用文献数

1

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To assess myocardial fibrosis associated with muscular dystrophy, T1-mapping and extracellular volume fraction (ECV) quantification was prospectively performed using cardiovascular MR (CMR) imaging in 6 male patients with muscular dystrophy and 5 female putative carriers of Duchenne or Becker muscular dystrophy. Five patients and all putative carriers had an elevated ECV (>29.5% for men and >35.2% for women), suggesting that ECV has a potential to detect diffuse fibrotic changes in patients and putative carriers of muscular dystrophy.

著者

Tadao Aikawa Jiro Ogino Noriko Oyama-Manabe Naohiro Funayama

出版者

The Japanese Society of Internal Medicine

雑誌

Internal Medicine (ISSN:09182918)

巻号頁・発行日

pp.0137-22, (Released:2022-06-28)

参考文献数

2

被引用文献数

1

著者

Yusuke Ayabe Kohei Hamamoto Yoshikazu Yoshino Yoshimasa Ikeda Emiko Chiba Hironao Yuzawa Noriko Oyama-Manabe

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.tn.2021-0106, (Released:2021-12-11)

参考文献数

11

被引用文献数

3

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A flow-diverter (FD) device is a well-established tool for the treatment of unruptured intracranial aneurysms. Time-of-flight (TOF) MR angiography (MRA) is widely used for postoperative assessment after the treatment with FD; however, it cannot fully visualize intra-aneurysmal and intrastent flow signals due to the magnetic susceptibility from the FD. Recently, the utility of MRA with ultra-short TE (UTE) sequence and arterial spin labeling technique in assessing the therapeutic efficacy of intracranial aneurysms treated with metallic devices has been reported, but long image acquisition time is one of the drawbacks of this method. Herein, we introduce a novel UTE MRA using the subtraction method that enables the reduction in susceptibility artifacts with a short image acquisition time.

著者

Koichi Ito Emiko Chiba Noriko Oyama-Manabe Satoshi Washino Osamu Manabe Tomoaki Miyagawa Kohei Hamamoto Masahiro Hiruta Keisuke Tanno Hiroshi Shinmoto

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.2020-0182, (Released:2021-05-15)

参考文献数

23

被引用文献数

1

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Purpose: To assess the diagnostic performance of the tumor contact length (TCL) and apparent diffusion coefficient (ADC) for predicting extraprostatic extension (EPE) of prostate cancer with capsular abutment (CA).Methods: Ninety-three patients with biopsy-proven prostate cancer underwent 3-Tesla MRI, including diffusion-weighted imaging (b value = 0, 2000 s/mm2) and radical prostatectomy. Two experienced radiologists, blinded to the clinicopathological data, retrospectively assessed the presence of CA on T2-weighted imaging (T2WI). TCL on T2WI and ADC values were measured on detecting CA in prostate cancer. We used the receiver operating characteristic curves to assess the diagnostic performance of TCL and ADC values for predicting EPE.Results: CA was present in 58 prostate cancers among 93 patients. The cut-off value for TCL was 6.9 mm, which yielded an area under the curve (AUC) of 0.75. This corresponded to a sensitivity, specificity, and accuracy of 84.2%, 61.5%, and 69.0%, respectively. The cut-off value for ADC was 0.63 × 10–3 mm2/s, which yielded an AUC of 0.76. This, in turn, corresponded to a sensitivity, specificity, and accuracy of 84.2%, 59.0%, and 67.2%, respectively. The combined cut-off value of TCL and ADC yielded an AUC of 0.82. The specificity (84.6%) and accuracy (81.0%) of the combined value were superior to their individual values (P < 0.05).Conclusion: A combination of TCL and ADC values provided high specificity and accuracy for detecting EPE of prostatic cancer with CA.

著者

Osamu Manabe Masanao Naya Keiichiro Yoshinaga Noriko Oyama-Manabe Hiroshi Ohira Tadao Aikawa Nagara Tamaki

出版者

Japanese Society of Nuclear Cardiology

雑誌

Annals of Nuclear Cardiology (ISSN:21893926)

巻号頁・発行日

vol.3, no.1, pp.205-209, 2017 (Released:2017-10-31)

参考文献数

25

被引用文献数

1

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Cardiac positron emission tomography (PET) has evolved over the several decades since its introduction. In current clinical practice and research, cardiac PET imaging is accepted as a valuable noninvasive modality for assessing various cardiac diseases such as coronary artery disease (CAD), cardiac tumors, and inflammatory diseases including cardiac sarcoidosis (CS). PET enables the imaging and evaluation of the cardiovascular system by myocardial perfusion with 82Rb, 13N-NH3 and 15O-H2O, and those of metabolism and inflammation using 18F-fluorodeoxyglucose (18F-FDG). PET has demonstrated superior diagnostic accuracy for the detection of CAD and also has well-established prognostic value. The combination of qualitative and absolute quantifications of myocardial blood flow enhances the diagnostic accuracy for multiple-vessel disease and provides incremental functional and prognostic information. In this review, we focus on the current and future roles of cardiac PET imaging, on the basis of our own experience.