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Dynamic three-dimensional MR renography for the measurement of single kidney function: initial experience.
A three-dimensional magnetic resonance (MR) renographic method to measure single kidney glomerular filtration rate (GFR) and split renal function was developed that is based on renal signal intensity…
Improving Specificity of Breast MRI Using Prone PET and Fused MRI and PET 3D Volume Datasets
Fused PET and MRI scans increased the specificity of MRI but decreased the sensitivity in this small group of patients, and Acquisition of prone PET scans using the new positioning device permitted acquisition of prone scans suitable for fusion with breast MRI scans.
What causes diminished corticomedullary differentiation in renal insufficiency?
- V. Lee, M. Kaur, E. Kramer
- Medicine, BiologyJournal of magnetic resonance imaging : JMRI
- 1 April 2007
To investigate whether the loss of corticomedullary differentiation (CMD) on T1‐weighted MR images due to renal insufficiency can be attributed to changes in T1 values of the cortex, medulla, or both.
Gallium-67 scans of the chest in patients with acquired immunodeficiency syndrome.
Eighty-six [67Ga]citrate chest scans were performed in 71 adult patients with the acquired immunodeficiency syndrome, and the most common diagnosis was pulmonary Kaposi's sarcoma.
Renal function measurements from MR renography and a simplified multicompartmental model.
It is concluded that a nephron-based multicompartmental model can be used to derive clinically useful estimates of single-kidney GFR from low-dose MR renography.
Graphics applied to medical image registration
- Gerald Q. Maguire, M. Noz, Gwenn S. Smith
- Physics, MedicineIEEE Computer Graphics and Applications
- 1 March 1991
The main goal of the authors is to improve on commercial SPECT reconstruction algorithms and provide quantification accuracy sufficient for numerical assessment of tracer distribution.
CT-SPECT fusion to correlate radiolabeled monoclonal antibody uptake with abdominal CT findings.
Fusion of computed tomography and SPECT images with radiolabeled, anti-carcinoembryonic antigen monoclonal antibody enabled identification of anatomic sites of tumor-specific MoAb accumulation in four cases, showed non- specific Mo Ab accumulation in two, and helped confirm information only suggested by the two studies separately in one.
Quantitative determination of Gd‐DTPA concentration in T1‐weighted MR renography studies
A method for calculating contrast agent concentration from MR signal intensity (SI) was developed and validated for T1‐weighted MR renography (MRR) studies and is expected to be particularly useful for assessing regions with highly concentrated contrast.
Fluorodeoxyglucose (FDG) uptake in pulmonary rheumatoid nodules
Although rheumatoid pulmonary nodules are benign, confirmation to exclude coincidental malignancy is very important and FDG-PET is a noninvasive imaging technique, which acts as a metabolic biopsy and can help in avoiding morbidity and cost of invasive tissue sampling.
Spectrum of thymic uptake at 18F-FDG PET.
- B. Ferdinand, P. Gupta, E. Kramer
- Medicine, BiologyRadiographics : a review publication of the…
- 1 November 2004
In equivocal cases, correlation with morphologic data from computed tomography or magnetic resonance imaging will likely continue to play a key role in diagnosis and will aid in differentiating benign thymic uptake from malignancy.