Am J Nucl Med Mol Imaging
February 2021
The aim of this study was to assess the risk of atherosclerosis in patients with lung cancer compared to patients with extrapulmonary malignancies using F-fluorodeoxyglucose-positron emission tomography/computed tomography (FDG-PET/CT). We hypothesized that patients with lung cancer would demonstrate increased FDG uptake in the thoracic aorta compared to patients with extrapulmonary cancers. Thirty-four lung cancer patients (21 male, 13 female, 64.
View Article and Find Full Text PDFThe practical application of dual-time-point-imaging (DTPI) technique still remains controversial. One of the issues is that current parameters of DTPI quantification suffer from some deficiencies, mainly limited sampling of the diseased sites by confining measurements to specific locations. We aimed to examine the correlation between the percent change from early to delayed scans in whole-bone marrow (WBM) F-FDG uptake, as measured by a CT-based method of PET/CT quantification, and response to treatment in multiple myeloma (MM) patients.
View Article and Find Full Text PDFEur J Nucl Med Mol Imaging
November 2020
Aim: To compare the effects of high-dose therapy (HDT consisting of high-dose chemotherapy followed by autologous stem cell transplantation) and conventional-dose chemotherapy (non-HDT) on the uptake of F-sodium fluoride (NaF) in the whole bone, pelvis, and femoral neck of multiple myeloma (MM) patients.
Method: The data of 19 MM patients who received HDT (61.5 (SD 5.
Purpose: We present a novel computed tomography-based tissue segmentation methodology for determining volume and global uptake of FDG of the thigh muscles and correlate these parameters with age.
Materials And Methods: A total of 71 subjects from a prospective clinical trial (NCT01724749) were included. PET/CT scans were acquired 180 minutes after intravenous injection of FDG.
Objectives: This study was undertaken to determine the role of computed tomography (CT)-based methodology to segment the SI joint and quantify the metabolic activity using positron emission tomography (PET). We measured tracer uptake in the right and left SI joints independently to look for differences between the two sides. Further, we correlated tracer uptake with BMI and studied the inter-observer variation with regard to estimated tracer uptake in the SI joints.
View Article and Find Full Text PDF"The role of F-fluorodeoxyglucose PET/computed tomography in hematological malignancies continues to expand in disease diagnosis, staging, and management. A key advantage of PET over other imaging modalities is its ability to quantify tracer uptake, which can be used to determine degree of disease activity. Although tracer uptake with PET is conventionally measured in focal lesions, novel quantitative techniques are being investigated that set objective protocols and produce robust parameters that represent total disease activity portrayed by PET.
View Article and Find Full Text PDFObjective: Osteoarthritis (OA) is characterized by synovial tissue inflammation and underlying bone degeneration in the joints. Aging and obesity are among the major risk factors. This study evaluated the effects of aging and body mass index (BMI) on hip joint inflammation and bone degeneration using fluorine-18-fluorodeoxyglucose positron emission tomography/computed tomography (F-FDG PET/CT) and fluorine-18 sodium fluoride (F-NaF) PET/CT imaging, respectively.
View Article and Find Full Text PDFObjective: This study was conducted to determine the role of computed tomography (CT)-based segmentation methodology to semi-quantify the degree of inflammation and reactive bone formation in the knee joints by fluorine-18-fluorodeoxyglucose (F-FDG) and F-sodium fluoride positron emission tomography/CT (F-NaF PET/CT) imaging, respectively. Furthermore, we assessed the impact of aging and body mass index (BMI) on these biological responses.
Subjects And Methods: In this retrospective study, we examined a total of 97 subjects who had undergone both F-FDG and F-NaF PET/CT scanning.