Both high resolution (10 MHz) ultrasound and 201-thallium/99m-technetium subtraction scanning (Tl/Tc) were carried out preoperatively in 25 patients with primary hyperparathyroidism. Operative findings were the standard against which these two imaging methodologies were compared. Tl/Tc scanning showed a sensitivity of 42% and a specificity of 97%. By comparison, sensitivity of ultrasound was 38...

A 54 years old female with history of total thyroidectomy for papillary carcinoma, treated with lOOmCi of iodine-131 and negative whole body scans was referred for follow up study. Tl-201 scan revealed an area of radiotracer uptake in the neck region, suggestive of a parathyroid adenoma versus recurrence of thyroid carcinoma. The patient was operated, the parathyroid adenoma was removed. ...

Received 10/11/2004; revised 11/8/2004; accepted 11/12/2004. For correspondence or reprints contact: Guang-Uei Hung, M.D., Department of Nuclear Medicine, Changhua Christian Hospital, 135 Nan-Shiao Street, Changhua 500, Taiwan. Tel: (886)4-7238595 ext. 3091, Fax: (886)4-7232942, E-mail: [email protected] Background: Gated myocardial perfusion single photon emission computed tomography (SPECT) h...

Background: The purpose of this study is to clarify the utility of thallium-201 single photon emission tomography (Tl-SPECT) for predicting local recurrence after stereotactic radiotherapy (SRT) by comparing it with 18fl udeoxyglucose-positron emission tomography (FDG-PET). Since Tl-SPECT can be performed at general hospitals, the ability of Tl-SPECT to predict local recurrence after SRT is cli...

UNLABELLED This study investigates the feasibility of routine clinical 201Tl gated perfusion SPECT (gated Tl), and compares quantitative left ventricular ejection fraction (LVEF) and visually-assessed regional wall motion and thickening to analogous values obtained from 99mTc-sestamibi gated perfusion SPECT (gated MIBI). METHODS We studied 121 patients with a rest gated Tl (3-3.5 mCi, 35 sec/...

UNLABELLED Planar lung scintigraphy is a standard method used for the diagnosis of lung embolism, but it is hampered by the high incidence of nondiagnostic tests. Ventilation/perfusion SPECT may possibly improve this situation. The objective of this study was to compare planar lung scintigraphy with ventilation/perfusion SPECT using pigs with artificially engendered lung emboli labeled with (20...