Why the study?
Does Tl-201 scintigraphy identify the cause of angina in a patient with nondiagnostic exercise ECGs?
Does Tl-201 scintigraphy identify the cause of angina in a patient with nondiagnostic exercise ECGs?
Tl-201 scintigraphy can be useful in diagnosing exercise-induced variant angina when exercise ECGs are nondiagnostic.
May aid Tl-201 diagnosis of exercise-induced vasospasm with nondiagnostic ECGs; leaves open prospective validation.
A 53-year-old man presented for evaluation of nocturnal chest pain, consistent with angina pectoris. An exercise stress test reproduced his symptoms, however, exercise electrocardiograms were nondiagnostic. An exercise-thallium perfusion study confirmed vasospasm as the cause. This knowledge guided subsequent successful medical therapy.
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Kruithoff et al. (1996) studied this question.
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