The diagnostic reference level (DRL) is a patient-exposure optimization tool used to evaluate and provide guidance for radiation doses in medical imaging. In the past few decades, there has been a ...
SPECT produces nuclear medicine images using a 3-dimensional diagnostic tool that eliminates the superimposition of adjacent structures, thus providing improved disease localization. Another method of ...
In patients with a histologic diagnosis of extra-CS and abnormal results on screening tests for CS, the use of 18 F-FDG PET/CT is indicated for the work-up of myocardial involvement (2). Abnormal ...
Contamination, a Major Problem in Nuclear Medicine Imaging: How to Investigate, Handle, and Avoid It
A spot image of the head, neck, and thorax was acquired with the patient in head-first supine position to correct the motion artifact. As we changed the orientation of the patient from feet-first ...
A 65-y-old woman with multiple cardiovascular risk factors presented with atypical chest pain, prompting a 1-d pharmacologic stress myocardial perfusion test using 99m Tc sestamibi. Initial ...
PET and SUV depend on reliable pharmacokinetic modeling, part of which is predictable dose delivery. Partial extravasation of the intravenous dose administered undermines the predictability of dose ...
Quantification of regional lung perfusion with 99m Tc-labeled macroaggregated albumin is commonly used to evaluate pulmonary function in patients with lung cancer before volume reduction surgery (1,2) ...
The annual incidence of cardiac sarcoidosis is low, but increased awareness of this inflammatory condition has led to earlier disease recognition. High mortality rates compel prompt diagnosis and ...
A cardiac emergency in SPECT/CT and PET/CT occurs infrequently but necessitates prompt recognition and an appropriate response. The emergence of 18 F-based myocardial perfusion radiopharmaceuticals is ...
Cardiac PET imaging is increasingly used for myocardial perfusion studies because of its high diagnostic accuracy and low radiation exposure to the patient. However, patient motion can be challenging, ...
This report is of an unusual case of radioactive contamination of a γ-camera after scanning 2 individuals who had been treated 3 d beforehand with ablative doses of 131 I for thyroid cancer. A ...
We encountered a round artifact on images obtained with our SPECT/CT system: a small dark spot surrounded by a broad light ring. The artifact was due to a problem with the SPECT portion of the hybrid ...
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