Fewer-Angle SPECT/CT Blood Pool Imaging for Infection and Inflammation.

A new protocol for rapid SPECT/CT blood pool imaging consisting of fewer image-angle acquisitions (fewer-angle SPECT/CT, or FASpecT/CT) was evaluated for localization of focal sites of soft-tissue inflammation, infection, and osteomyelitis. Immediately after dynamic flow and standard planar blood pool imaging with Tc-methylene diphosphonate, FASpecT/CT was performed with a dual-head γ-camera consisting of 6 steps over 360°, 12 total images with 30° of separation between angles, and 30 s per image, requiring a total imaging time of approximately 3 min. Images were reconstructed using iterative ordered-subset expectation maximization.

FASpecT/CT, A New SPECT/CT Acquisition With Higher Sensitivity and Efficiency in Radioiodine Thyroid Cancer Imaging.

Purpose: This article demonstrates the use of a new SPECT/CT acquisition protocol in patients with differentiated thyroid cancer (DTC).

Methods: SPECT/CT scans (FASpecT/CT) with fewer angle acquisitions were retrospectively reviewed in 30 DTC patients treated with radioiodine at University Hospital, San Antonio, Tex, from July 2017 to March 2019. This FASpecT/CT of 12 versus 60 to 64 sampled views for convention SPECT was made possible by iterative reconstruction.

Simultaneous Blood Glucose Monitoring During Gastric-Emptying Scintigraphy May Identify Unsuspected Abnormalities.

Purpose: A retrospective study of 197 patients was performed to evaluate utility of simultaneous fingerstick glucose monitoring during standardized solid meal gastric-emptying scintigraphy (GES). We hypothesized the unlabeled carbohydrate components of the standardized meal often empty at different rates than the labeled egg protein component and that simultaneous glucose monitoring may identify rapid carbohydrate gastric emptying.

Methods: Patients were classified as normal, rapid, or delayed gastric emptying from the standardized solid egg meal GES criteria.