James A. Patton

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Opinion surveys were gathered before and 6 months after installation of a prototype picture archiving and communication system (PACS) (PACS/1, Siemens Medical Systems, Iselin, NJ). Median turnaround times and the percent of delayed or missing reports were calculated for 1,026 baseline and 8,438 follow-up studies at 6 months. Neuroradiological (neuro)(More)
The purpose of this study was to compare the diagnostic accuracy of fluorine-18 fluorodeoxyglucose (FDG) images obtained with (a) a dual-head coincidence gamma camera (DHC) equipped with 5/8-inch-thick NaI(Tl) crystals and parallel slit collimators and (b) a dedicated positron emission tomograph (PET) in a series of 28 patients with known or suspected(More)
Early in the history of nuclear medicine imaging it was realized that the nature of physiological mechanisms associated with the use of radiotracers prevented the identification of anatomic structures with a high degree of accuracy. This limitation often created difficulties in accurate interpretations of acquired images and caused investigators to seek(More)
Using nuclear medicine techniques, physiologic activity and processes can be identified in a way that is unique from other modalities. Oftentimes it is helpful to know the exact location of the physiologic uptake that is visualized on a scan. Knowing the exact location can sometimes help to distinguish normal from abnormal physiologic uptake. When an(More)
There is a clear need for established standards for medical physics residency training. The complexity of techniques in imaging, nuclear medicine, and radiation oncology continues to increase with each passing year. It is therefore imperative that training requirements and competencies are routinely reviewed and updated to reflect the changing environment(More)
There is a major trend toward reducing the cost of medical care. One of the ways to meet this challenge is to diagnose and treat diseases in their infancy. With the advent of multislice computerized tomography (CT) scans, exquisite anatomical detail is available in shorter time intervals. However, anatomical changes are, by definition, the result of disease(More)
Positron emission tomography (PET) has been used as a tool by investigators for many years to study metabolic processes in the body primarily with the radiopharmaceutical 18-fluordeoxyglucose. However, use of this technology has not been widespread because of the high expense of the equipment and its limitation to the imaging of positron emitters only.(More)