A 64-year-old man presented with clinical unilateral thyroiditis after chronic left neck trauma from his car seat belt. Thyroid function tests were normal. The initial thyroid Tc-99m pertechnetate scan demonstrated decreased uptake in the entire left lobe of the thyroid. The follow-up scan 1 month later showed a more normal uptake in the left lobe. This patient's clinical course, laboratory val...

Alimentary tract duplications are uncommon congenital anomalies. Although most are symptomatic by the age of 2 years, some remain asymptomatic until adulthood. In one third of all cases, heterotopic gastric mucosa lines the wall of dupli­ cation, and may cause peptic ulceration, gastrointestinal bleed­ ing, fistulization or perforation. We report in this paper, a case of jejunoileal duplication...

Six adults with inferior vena caval obstruction are presented. Three were the results of surgical intervention, two were secondary to large thrombi, and one was due to pressure from a large renal-cell carcinoma and adjacent nodes. All underwent a modified approach of radionuclide venography, using a moderately large volume of sodium pertechnetate. Features characteristic of inferior vena caval ...

Thiamazole inhibits the thyroid hormone synthesis and does not inactivate existing thyroxine triiodothyronine that circulate in blood. In this paper electrochemical behavior was monitored by cyclic voltammetry on glassy carbon (GC) electrode absence presence of sodium pertechnetate (99mTc). The influence different concentrations without radiopharmaceutical 99mTc, effect number scan cycles, 99mT...

introduction: the use of radiopharmaceuticals is a powerful tool in the management of patients with infectious or inflammatory diseases in nuclear medicine. in this study ofloxacin as a second-generation fluoroquinolone is used to design a desired infection imaging agent after labeling with 99mtc via direct labeling. methods: ofloxacin was radiolabeled with 99mtc using different concentrations ...

objective(s): in this study, we aimed to evaluate the efficacy of thyroid volume measurement using 99mtc pertechnetate single-photon emission computed tomography (spect) images, acquired by the standardized uptake value (suv)-shape scheme designed by our expert team.methods: a total of 18 consecutive patients with graves’ disease (gd) were subjected to both ultrasonographic and 99mtc pertechnet...

The superior vena caval syndrome caused by a substernal thyroid is a rare occurrence. It can, however, result from external compression of the superior vena cava or innominate veins by an intrathoracic goiter. This report details such a case in which innominate vein occlusion was documented both by conventional venography and by a new technique utilizing a radionuclide (sodium pertechnetate 9#{...

Selection of subjects. Patients with brain tumors and one with an arteriorvenous anomaly (hereafter included in the tumor classification) who were re ferred for brain scanning were chosen for this study. At subsequent operations all the patients were found to have one of a variety of pathologic processes. There were six males and five females with ages rang ing from 8 to 66 years. Scanning dose...

ACR Appropriateness Criteria 1 Urinary Tract Infection–Child American College of Radiology ACR Appropriateness Criteria Urinary Tract Infection–Child Variant 1: Age <2 months, first febrile urinary tract infection. Radiologic Procedure Rating Comments RRL* US kidneys and bladder 9 O Voiding cystourethrography 6 Consider this procedure in boys and in the presence of sonographic abnormality. ☢☢ T...

In the first part of this two-part article, the characteristics, potential uses, radiochemical purity and method of evaluating the activity of Tc99m will be discussed. In the second part of the article, the dosimetry of this radionuclide will be presented for various routes of administration as well as for various chem ical configurations, such as the pertechnetate ion, the colloid and the prot...