Serial Myocardial Imaging after a Single Dose of Thallium-201
سال انتشار: 1393
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 229
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شناسه ملی سند علمی:
JR_JNMB-2-2_007
تاریخ نمایه سازی: 12 تیر 1398
چکیده مقاله:
Although thallium-201 exercise scintigraphy has been established for the detection of myocardial ischemia and viability, little is known regarding the myocardial thallium-201 kinetics during angioplasty. Herein, we report a 77-year old man with angina pectoris, in whom serial myocardial imaging after a single dose of thallium-201 was helpful in identifying not only the culprit lesion and myocardial viability, but also the dynamic changes in myocardial perfusion during angioplasty. Thallium-201 images after exercise showed a perfusion defect in the inferior wall, with a trivial redistribution 3 hours after the exercise and a marked improvement 24 hours later. Coronary angiography, performed 27 hours after exercise scintigraphy, showed severe stenosis in the right coronary artery. Guidewire crossing of the lesion interrupted the antegrade flow, which was restored after balloon dilation and stent implantation. Thallium-201 images, 2 hours after angioplasty (i.e., 30 hours after exercise), showed a decreased tracer uptake in the inferior wall, which improved the next day (i.e., 48 hours after exercise). Cardiac biomarkers were negative in the clinical course.
کلیدواژه ها:
نویسندگان
Takahiko Kamata
Department of Cardiology, Matsushita Memorial Hospital, Osaka, Japan
Tatsuya Kawasaki
Department of Cardiology, Matsushita Memorial Hospital, Osaka, Japan
Tadaaki Kamitani
Department of Cardiology, Matsushita Memorial Hospital, Osaka, Japan
Hiroki Sugihara
Department of Cardiology, Matsushita Memorial Hospital, Osaka, Japan