3D-mode acquisition in clinical PET.
Published in Nuclear Medicine Communications
Evaluation of myocardial perfusion using positron emission tomography in infants following a neonatal arterial switch op...
Published in Pediatric Cardiology
This study was performed to examine the use of positron emission tomography (PET) as a method of evaluating myocardial perfusion after the arterial switch operation for correction of transposition of the great arteries. Eleven asymptomatic patients (median age 2.3 years, range 1.3-4.3 years) post successful neonatal arterial switch repair for trans...
Ancient schwannoma masquerading as a thyroid mass.
Published in European Journal of Surgical Oncology
Schwannomas are benign, encapsulated nerve sheath cell neoplasms. Cervical sympathetic chain (CSC) schwannomas are rare, with less than 50 cited cases in the literature. CSC schwannomas may mimic a number of parapharyngeal masses. We report a rare variant, "ancient" schwannoma, which presented cytologically and radiologically as a thyroid mass. Thi...
Developments in component-based normalization for 3D PET.
Published in Physics in Medicine and Biology
Normalization in positron emission tomography (PET) is the process of ensuring that all lines of response joining detectors in coincidence have the same effective sensitivity. In three-dimensional (3D) PET, normalization is complicated by the presence of a large proportion of scattered coincidences, and by the fact that cameras operating in 3D mode...
Comparison of two-dimensional and three-dimensional iterative watershed segmentation methods in hepatic tumor volumetric...
Published in Medical Physics
In this work the authors compare the accuracy of two-dimensional (2D) and three-dimensional (3D) implementations of a computer-aided image segmentation method to that of physician observers (using manual outlining) for volume measurements of liver tumors visualized with diagnostic contrast-enhanced and PET/CT-based non-contrast-enhanced (PET-CT) CT...
Prevention of systolic anterior motion after mitral valve repair with an anterior leaflet valvuloplasty.
Published in The Journal of heart valve disease
Quantitative Accuracy of Penalized-Likelihood Reconstruction for ROI Activity Estimation.
Published in IEEE Transactions on Nuclear Science
Estimation of the tracer uptake in a region of interest (ROI) is an important task in emission tomography. ROI quantification is essential for measuring clinical factors such as tumor activity, growth rate, and the efficacy of therapeutic interventions. Accuracy of ROI quantification is significantly affected by image reconstruction algorithms. In ...
Dosimetry and adequacy of CT-based attenuation correction for pediatric PET: phantom study.
Published in Radiology
Hypertrophic cardiomyopathy: a real risk factor for stroke.
Published in Scottish Medical Journal
Hypertrophic cardiomyopathy is a common and complex heterogeneous cardiovascular entity. Its relationship to ischaemic stroke and atrial fibrillation is under-recognized and consequently, many patients who should be on oral anticoagulation for stroke prevention go untreated.
A clinical evaluation of the quantitative accuracy of simultaneous emission/transmission scanning in whole-body positron...
Published in European Journal of Nuclear Medicine
We present a clinical evaluation of the quantitative bias which is introduced during simultaneous emission/transmission (SET) acquisition for the application of whole-body positron emission tomography (PET) with fluorine-18 2-fluoro-2-deoxy-d-glucose. The quantitative accuracy of the SET technique was assessed by means of a clinical study involving...
