Abstract Purpose The quantitative accuracy of Nuclear Medicine images, acquired for both planar and SPECT studies, is influenced by the isotope-collimator combination as well image corrections incorporated in iterative reconstruction process. These factors can be investigated optimised using Monte Carlo simulations. This study aimed to evaluate quantification 123 I with low-energy high resoluti...

OBJECTIVE Fluorodeoxyglucose positron emission tomography/computed tomography imaging in the follow-up of patients with differentiated thyroid carcinoma who have high serum thyroglobulin, negative iodine-131 whole body scan and suppressed thyrotropin. PATIENTS AND METHODS A total of 90 patients (31 male and 59 female) with differentiated thyroid carcinoma who have high serum thyroglobulin and...

Three patients' medical history, clinical manifestation, imaging characteristic, therapy and prognosis of calvaria metastasis from follicular thyroid carcinoma (FTC) in our hospital were retrospectively analyzed by reviewing medical literature. In case one, the tumor in frontal bone and fossa orbital was total resected, no further treatment was performed, the patient gave up on therapy and died...

The usefulness of the various tests of thyroid function has been evaluated over a three-year period. It is concluded that an uptake test and estimation of the serum protein-bound radioactive iodine (PB (131)I), supplemented as required by the protein-bound iodine (PBI), remain the best routine tests of thyroid function. Forty-five patients who gave discordant results on these tests over this pe...

Preliminary treatment with carbimazole in a series of 181 patients with thyrotoxicosis selected for treatment with radioactive iodine did not make any significant difference to the subsequent response to (131)I therapy.

Malignant struma ovarii is a rare disease in gynecology and the optimal treatment regimen for the tumor remains obscure. We present a patient who had malignant struma ovarii with peritoneal implants and pelvic structures and liver metastases shown on posttreatment iodine I-131 single-photon emission tomography (SPECT) and low-dose computed tomography (CT). The roles of I-131 ablation in the man...

Salivary dysfunction and sialadenitis are well known complications of radioiodine treatment for thyroid cancer. The parotid gland is more frequently affected and the salivary gland injury is dose related. The symptoms may develop shortly after therapeutic Iodine 131(I-131) administration or months later and progress with time. The development of unilateral parotiditis following a low dose, diag...

UNLABELLED In this study we compared whole body scintigraphy with Tc-99m-methoxyisobutylisonitrile (MIBI) and Iodine-131 NA (131I) for detection of residual and/or metastatic disease in well differentiated thyroid carcinoma. METHODS MIBI and I-131 scans were obtained in 60 patients. TSH measurements were done in all the patients prior to scintigraphy. RESULTS Out of 60 patients, for whom bo...

Figure 1. Salivary gland scintigraphy performed before (March 2005) and after (August 2005) iodine-131 internal radiation therapy (I-131 IRT). Anterior images obtained at 10 and 20 minutes after intravenous injection of Tc-99m, and at 5 minutes after washout by Vitamin C are shown. Original scintigraphy was performed as a dynamic study with 1 min/frame. Significantly higher accumulation was obs...

Diagnosis and management of pheochromocytoma, once dangerous and uncertain, have been dramatically altered in recent years by advances in imaging, assays, and pharmaceuticals. During the past ten years we have treated 18 patients who had pheochromocytoma. Biochemical diagnosis was made in all patients by measurement of 24-hour urinary total catecholamine excretion or by epinephrine-norepinephri...