A Case Study on Cardiac Imaging in Patients with Arrhythmogenic Right Ventricular Dysplasia/Cardiomyopathy-A Comparison between 64-Slice Computed Tomography, Magnetic Resonance Imaging and Electroanatomical Mapping-
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- Nishiyama Kei
- Departments of Cardiovascular Medicine, Kyoto University Graduate School of Medicine
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- Doi Takahiro
- Departments of Cardiovascular Medicine, Kyoto University Graduate School of Medicine
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- Shizuta Satoshi
- Departments of Cardiovascular Medicine, Kyoto University Graduate School of Medicine
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- Yamamoto Takayuki
- Departments of Cardiovascular Medicine, Kyoto University Graduate School of Medicine
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- Hanazawa Kouji
- Departments of Cardiovascular Medicine, Kyoto University Graduate School of Medicine
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- Kita Toru
- Departments of Cardiovascular Medicine, Kyoto University Graduate School of Medicine
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- Kimura Takeshi
- Departments of Cardiovascular Medicine, Kyoto University Graduate School of Medicine
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Arrhythmogenic right ventricular dysplasia/cardiomyopathy (ARVD/C) is an uncommon type of cardiomyopathy with fibrofatty tissue replacement. Magnetic resonance imaging (MRI) is a sophisticated method for the diagnosis of ARVD/C. Electroanatomical mapping has been reported to rapidly provide accurate data that facilitates catheter ablation of VT in ARVD/C. In addition, multislice CT (MSCT) is fast, easy to perform, and has a more reliable image quality. MSCT is considered a clinically valuable, noninvasive tool for assessment of myocardial pathology. However, the relationship between MSCT, cardiac MRI and electroanatomical mapping imaging in patients with ARVD/C is unknown. We report two cases diagnosed as ARVD/C by endomyocardial biopsy. In one case MRI imaging revealed marked wall thinning and a decrease in wall motion in the inferior wall and basal interventricular septum of the left ventricle. In another case an electroanatomical map of the RV was created. Endocardial voltage mapping in sinus rhythm revealed a large low voltage area and a focal pattern of activation was documented in activation mapping during VT. In both cases MSCT demonstrated low density areas indicative of focal fatty infiltration and morphological and functional abnormalities which were simultaneously assessed with MRI or electroanatomical mapping.
収録刊行物
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- Journal of Arrhythmia
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Journal of Arrhythmia 23 (4), 277-284, 2007
日本不整脈学会
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詳細情報 詳細情報について
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- CRID
- 1390282680222190336
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- NII論文ID
- 10024159550
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- NII書誌ID
- AA12059301
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- ISSN
- 18832148
- 18804276
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可