1951
DOI: 10.1210/jcem-11-5-492
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THE SCINTILLATION COUNTER IN CLINICAL STUDIES OF HUMAN THYROID PHYSIOLOGY USING I131*

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Cited by 38 publications
(7 citation statements)
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“…2,16 Cassen combined the Geiger counter, the only detector of radioactivity at the time, with crystal components of the newly developed photomultiplier tube, which facilitated amplification and detection of gamma ray emissions. 2,16,17 Later, in 1956, Dr. David Kuhl, then a resident at the University of Pennsylvania, modified Cassen's device and developed the photoscanner. In his design, a radioisotope emission-activated glow lamp provided grayscale images with a greater sensitivity and resolution than ever before.…”
Section: Resultsmentioning
confidence: 99%
See 1 more Smart Citation
“…2,16 Cassen combined the Geiger counter, the only detector of radioactivity at the time, with crystal components of the newly developed photomultiplier tube, which facilitated amplification and detection of gamma ray emissions. 2,16,17 Later, in 1956, Dr. David Kuhl, then a resident at the University of Pennsylvania, modified Cassen's device and developed the photoscanner. In his design, a radioisotope emission-activated glow lamp provided grayscale images with a greater sensitivity and resolution than ever before.…”
Section: Resultsmentioning
confidence: 99%
“…2,15 He improved the machines to measure in 3D physiologic function and to develop cross-sectional reconstructions. 2,15,17 The machines are considered the forerunners of SPECT, PET, and CT technology. Kuhl has been referred to as "the father of emission tomography."…”
Section: Resultsmentioning
confidence: 99%
“…Due to the low gamma-sensitivity of the G.-M. counters the collimators must be relatively wide and the demarcation obtained was unsharp. With the introduction of gamma-sensitive scintillation counters (6,7,9), much better possibilities were obtained for 'scanning' of the activities in the thyroid after a tracer dose as well as for the delineation of the thyroid silhouette (1,2,3,4,8).…”
Section: Gammagrammentioning
confidence: 99%
“…We do not hesitate, however, to administer tracer drinks of 100 to 200 sic. to patients for w'hom therapy is inten-, ded Development of the use of scintillation counting may render even this size of dose unnecessary in the future (Allen et al, 1951). In the calculations of the dose delivered the furthet necessary assumption has to be made that the absorbed iodine is distributed uniformly throughout the gland. Measurements described above with a collimated counter show that in most cases of thyrotoxicosis.the radioactive iodine is fairly uniformly distributed.…”
Section: Principles Involved In Treatment With Radioactivementioning
confidence: 99%