Publications by authors named "N Yefremov"
Article Synopsis
- The study investigated the survival benefits of revascularization compared to medical therapy in patients with stable ischemic heart disease who underwent SPECT-MPI imaging.
- Among patients with moderate to severe ischemia (≥10%), early revascularization significantly reduced the rates of death, myocardial infarction, and major adverse cardiac events compared to medical therapy alone.
- In patients with mild ischemia (5%-9%), revascularization did not improve survival outcomes and was linked to an increased risk of major adverse cardiac events, primarily due to late revascularizations.
Aim: To determine the effect of low tube voltage on positron-emission tomography (PET) image quality, quantitative analysis, and radiation dose in a combined PET/computed tomography (CT) study in patients with normal body mass index (BMI).
Materials And Methods: One hundred and twenty-nine examinations performed in 46 patients (mean age 57 years), who had at least two separate studies were retrospectively evaluated; at least one with 120 kVp and one with 80 kVp. Three independent readers reviewed all PET images and graded the image quality.
Purpose: To prospectively determine whether fluorine 18 fluorodeoxyglucose (FDG) positron emission tomography (PET)/computed tomography (CT) early dynamic blood flow estimates could be used to discriminate hepatocellular carcinoma (HCC) from background liver and to characterize HCC in patients with and those without angioinvasion; and to evaluate the association between blood flow measures at FDG PET/CT with metabolism in HCCs.
Materials And Methods: Institutional review board approval and written informed consent were obtained for this prospective study. Twenty-one consecutive patients (mean age, 65 years) with 30 established HCCs (mean size, 5.
The metabolic spectrum of venous thrombotic disorders found on PET/CT.
AJR Am J Roentgenol
December 2009
Objective: Thrombotic disorders detected on PET/CT are usually incidental findings and may change the treatment strategy and patient's disease prognosis. The purpose of this article is to present the spectrum of venous thrombotic disorders found on PET/CT.
Conclusion: The division of thrombotic disorders into metabolically nonactive and active thrombus may be helpful for differential diagnosis of underlying diseases causing thrombus formation.
Objective: The purpose of this article is to illustrate the spectrum of common benign intraarticular and extraarticular disorders associated with focal (18)F-FDG uptake in the shoulder and pelvic areas in oncology patients referred for PET/CT.
Conclusion: A wide spectrum of benign musculoskeletal disorders associated with focal FDG uptake may be detected in cancer patients. This incidental uptake usually does not seem to be a clinically significant finding, but it can affect quality of life.