The clinical significance of anterior and left lateral view discordant myocardial uptake of thallium-201

A detailed investigation was performed in ten patients who, out of 119 patients with abnormal thallium myocardial images, showed a discordant thallium uptake in the anterior and left lateral views. It was concluded that when interpreting the discordant uptakes, it is necessary to divide the antero-lateral wall into anterior and lateral segments. The lateral segment is the best seen in the anterior view and the anterior segment in the left lateral view. Similarly, the inferior-posterior region should be divided into right and left halves. The right half is seen best in the anterior view and the left half in the left lateral view. (U.K.)