John C. Seymour

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A modification of standard lymphoscintigraphic imaging is described that incorporates the use of a two-headed camera with flood source to provide combined whole-body transmission-emission images of lymphatic drainage in a patient with malignant melanoma. The most common imaging technique for lymphoscintigraphy uses single-head gamma cameras with or without(More)
A STUDY of the circulation in the labyrinth, to be complete, must include an investigation of the fluid circulation. The fluid system in the labyrinth is much more complex than that of the cerebrospinal axis. In the latter, the cerebrospinal fluid, produced by the choroid plexuses, circulates by known anatomical pathways and its main function is the(More)
THE innervation and movements of the larynx have received the attention of many experimental investigators. It would be hard to find any series of results which has produced so many positively affirmed observations by many workers, with equally positive but exactly opposite results by many others. The experimental animals used have been varied and include(More)
We illustrate the importance of short imaging times during gastroesophageal (GE) scintigraphy to better image GE reflux while still obtaining clinically useful gastric emptying data. While most reflux scans are comprised of 30- or 60-sec sequential images, we advocate the use of 10-sec images to maximize the signal-to-noise ratio of any radionuclide present(More)