Partial volume correction incorporating Rb-82 positron range for quantitative myocardial perfusion PET based on systolic-diastolic activity ratios and phantom measurements

Background  

Quantitative myocardial PET perfusion imaging requires partial volume corrections.     

Interassay reproducibility of myocardial perfusion gated SPECT in patients with atrial fibrillation

Aim  

The aim of this study was to assess interassay reproducibility of myocardial perfusion gated-SPECT for calculation of end-diastolic volume (EDV), end-systolic volume (ESV), and left ventricular ejection fraction (LVEF) in patients with atrial fibrillation (AF).     

Partial volume correction strategies for quantitative FDG PET in oncology

Purpose  

Quantitative accuracy of positron emission tomography (PET) is affected by partial volume effects resulting in increased underestimation of the standardized uptake value (SUV) with decreasing tumour volume. The purpose of the present study was to assess accuracy and precision of different partial volume correction (PVC) methods.     

Relationship between the trochlear groove angle and patellar cartilage morphology defined by 3D spoiled gradient-echo imaging

Objective  

To examine whether the femoral trochlear groove angle (TGA) is a determinant of the patellar cartilage volume and patellar cartilage damage.     

Positron Emission Tomography for Radiation Treatment Planning

Purpose:  

To evaluate the impact of positron emission tomography (PET) on target volume delineation for radiation treatment planning.     

Comparison of semi-automated and manual methods to measure the volume of liver tumours on MDCT images

Objective  

To retrospectively compare semi-automated and manual volume measurements of malignant liver tumours and inter- and intra-observer variability using commercially available software.     

Age-related changes in regional brain volume evaluated by atlas-based method

Introduction  

The effects of aging on brain volume are generally investigated using voxel-based morphometry (VBM) or the manually traced region-of-interest (ROI) method. We introduce an atlas-based method as a methodological alternative that calculates absolute volume as a non-biased and semi-automatic whole-brain technique.     

Simultaneous assessment of liver volume and whole liver fat content: a step towards one-stop shop preoperative MRI protocol

Objective  

The purpose of this study was to evaluate the ability of a whole liver volume (WLV) segmentation algorithm to measure fat fraction (FF).     

Reproducibility of trabecular structure analysis using flat-panel volume computed tomography

Purpose  

To determine inter-scan, inter-reader and intra-reader variability of trabecular structure analysis using flat-panel volume computed tomography (fp-VCT) in cadaver knee specimens.     

Relation between pulmonary embolus volume quantified by multidetector computed tomography and clinical status and outcome for patients with acute pulmonary embolism

Purpose  

The aim of this study was to determine whether pulmonary embolus volume (PEV) obtained with multi-detector row computed tomography is related to clinical status and outcomes.     

Low-dose triple-rule-out using 320-row-detector volume MDCT--less contrast medium and lower radiation exposure

Objectives  

To investigate image quality of triple-rule-out (TRO) computed tomography (CT) using a 320-row-detector CT system with substantially reduced contrast medium volume at 100 kV.     

Brain volume perfusion CT performed with 128-detector row CT system in patients with cerebral gliomas: A feasibility study

Objectives  

Validation of the feasibility and efficacy of volume perfusion computed tomography (VPCT) in the preoperative assessment of cerebral gliomas by applying a 128-slice CT covering the entire tumour.     

Cardiac-sparing radiotherapy for the left breast cancer with deep breath-holding

Purpose  

The aim of this study was to evaluate the effect of decreasing the irradiated cardiac volume in breast-conserving therapy (BCT) using breath-adapted radiation therapy (BART).     

Comparison of standard- and low-tube voltage MDCT angiography in patients with peripheral arterial disease

Objective:  

We investigated the effect of low-tube-voltage CT angiography with a reduced volume of contrast agent on qualitative and quantitative parameters and the radiation dose in patients with peripheral arterial disease.     

Evaluation of volume and solitary bone cyst remodeling using conventional radiological examination

Objective  

To evaluate cyst remodeling, including complete healing and recurrence, and its relation to the cyst volume in two groups of patients, using curettage and bone grafting or methylprednisolone injection.     

Assessment of pituitary adenoma volumetric change using longitudinal MR image registration

Introduction  

Change detection is a crucial factor in monitoring of slowly evolving pathologies. The objective of the study was to test a semi-automatic method applied on longitudinal MRI monitoring of volume change in pituitary macroadenomas.     

Women with patellofemoral pain syndrome have quadriceps femoris volume and strength deficiency

Purpose  

The aim of this study was to assess muscle torque, total volume, and cross-sectional area, and lower limb function of the quadriceps muscle in women with unilateral patellofemoral pain syndrome (PFPS).     

Simple area-based measurement for multidetector computed tomography to predict left ventricular size

Objective  

Measures of left ventricular (LV) mass and dimensions are independent predictors of morbidity and mortality. We determined whether an axial area-based method by computed tomography (CT) provides an accurate estimate of LV mass and volume.     

Anatomy-based reconstruction of FDG-PET images with implicit partial volume correction improves detection of hypometabolic regions in patients with epilepsy due to focal cortical dysplasia diagnosed on MRI

Purpose  

Detection of hypometabolic areas on interictal FDG-PET images for assessing the epileptogenic zone is hampered by partial volume effects. We evaluated the performance of an anatomy-based maximum a-posteriori (A-MAP) reconstruction algorithm which combined noise suppression with correction for the partial volume effect in the detection of hypometabolic areas in patients with focal cortical dysplasia (FCD).     

Dual energy CT pulmonary blood volume assessment in acute pulmonary embolism �C correlation with D-dimer level, right heart strain and clinical outcome

Objective  

To investigate the role of perfusion defect (PD) size on dual energy CT pulmonary blood volume assessment as predictor of right heart strain and patient outcome and its correlation with d-dimer levels in acute pulmonary embolism (PE).