Comparison of automated quantification and semiquantitative visual analysis findings of IQ SPECT MPI with conventional coronary angiography in patients with stable angina.

Objective: The aim of this study was to assess the validity of automated quantitative and semiquantitative visual analysis of total perfusion deficit (TPD) using the IQ SPECT gamma camera system compared to conventional coronary angiographically detected significant coronary artery disease (CAD).

Methods: The study included patients with suspected CAD who underwent myocardial perfusion single photon emission computed tomography and conventional coronary angiography. The summed stress score (SSS), summed rest score (SRS), and summed difference score (SDS) (semiquantitative visual analysis results) were assessed using a 5-point scale in a standard 17-segment model, and TPD (stress, rest, and ischemic TPD) was quantified using automated software.

Clinical significance of standardized uptake values in thyroid incidentaloma discovered by F-18 fluorodeoxyglucose positron emission tomography/computed tomography.

Aim Of Study: While using F-18 fluorodeoxyglucose (FDG) positron emission tomography computed tomography (PET/CT) for other than thyroid disease, an increased frequency of incidentally discovered areas of focally or diffuse increased uptake within the thyroid gland can be seen. We aimed to find the focal thyroid FDG uptake and compare the maximum standardized uptake value (SUV) results with cytology and histology results.

Materials And Methods: We examined PET scan reports for all patients undergoing FDG PET/CT investigation over a 10-year period in a single center.

Utility of left lateral supine position for myocardial perfusion single-photon emission computed tomography compared with other methods of correcting inferior wall attenuation.

Introduction: Single-photon emission computed tomography (SPECT) myocardial perfusion imaging is an accepted method for reflecting the pathophysiological significance of lesions detected by coronary angiography. However, it has an inherent drawback in terms of false-positive perfusion defects for the inferior myocardial wall. To overcome this problem, different acquisition techniques have been proposed, including the computed tomographic-based attenuation correction method.

Gallbladder metastasis secondary to gastric cancer as a first site of recurrence presented with acute cholecystitis: case report and literature review.

Metastasis to the gallbladder from other malignancies is extremely rare and is related with a very poor prognosis. Malignant melanoma has been reported to be the most common origin of gallbladder metastasis. Although only eight cases of gallbladder metastasis originating from gastric cancer have been documented in the literature based on small series, of these cases, only one case with signet ring cell carcinoma histology has been reported previously.