Increased plasma brain natriuretic peptide level as a guide for silent myocardial ischemia in patients with non-obstructive hypertrophic cardiomyopathy
Tomoki Nakamura, MD*,*,
Kenzo Sakamoto, MD ,
Tetsuhiro Yamano, MD ,
Masayuki Kikkawa, MD*,
Kan Zen, MD ,
Takato Hikosaka, MD ,
Takao Kubota, MD*,
Akihiro Azuma, MD, PhD and
Tsunehiko Nishimura, MD, PhD*
* Department of Radiology, Kyoto Prefectural University of Medicine, Kyoto, Japan
Second Department of Medicine, Kyoto Prefectural University of Medicine, Kyoto, Japan

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figure 1 Exercise (top) and rest (bottom) tomographic images with 99mtc-tetrofosmin obtained from a patient with hypertrophic cardiomyopathy. apparent left ventricular cavity dilation is noted. reversible regional perfusion abnormality is also observed at anteroseptal and posteroseptal areas of junction and extended to the adjacent portions of anterior and posterior free walls.
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figure 2 Compression of septal branches of the left anterior descending coronary artery (lca) (top) and posterior descending branch of the right coronary artery (rca) (arrows, bottom).
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