Clinical Value of Single Photon Emission Computed Tomography/Computed Tomography in the Evaluation of Tc-99m MIBI Parathyroid Scintigraphy

Lessons from the Tc-99m shortage: implications of substituting Tl-201 for Tc-99m single-photon emission computed tomography.

BACKGROUND In 2009, the Chalk River nuclear reactor closed for repairs that led to a critical shortage of technetium-99m (Tc-99m). Several centers used thallium-201 (Tl-201) as an alternative radiotracer for myocardial perfusion imaging. Because Tl-201 is considered by many as a suboptimal radiotracer, we sought to understand the impact of using Tl-201 (during the Tc-99m shortage) on downstream...

Absent radiotracer uptake in thyroid gland in parathyroid scintigraphy with 99mTc-MIBI: A case report

Localization of 99mTc- hexakis-2-methoxyisobutylisonitrile (99mTc-MIBI) by parathyroid adenomas is well known, and this warrants MIBI scan to evaluate suspected parathyroid adenoma in primary hyperparathyroidism. Typically, the radionuclide concentrates in both the thyroid gland and parathyroid adenoma in early images, and later on delayed images washes out slowly from the...

Localization of ectopic parathyroid adenoma with Tc-99m-MIBI [Persian]

  Ectopic paratliyroid adenoma might create a clinical dilemma in patients with hypercalcemia. Radioisotopic scan is a sensitive and noninvasive method which can be useful in these patients. In this report a case of ectopic parathyroid adenoma is presented and the usefulness of TC-99m-MIBI scintigraphy as compared with other modalities is discussed.

The value of Tc-99m MIBI scintigraphy in active diseases and remission phase of multiple myeloma [Persian]

Technetium-99m Methylene Diphosphonate Single-photon Emission Computed Tomography/Computed Tomography of the Foot and Ankle

The complex anatomy and function of the foot and ankle can make it difficult to determine the cause of symptoms in patients with foot and ankle pathology. Following initial clinical and radiographic assessment, additional imaging with magnetic resonance imaging may be required, which is often seen as the modality of choice. Although sensitive to pathological changes in bone metabolism and vascu...