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The false positive technetium‐99 m hepatic scintiscan
Author(s) -
Volpe J. A.,
Morita E. T.,
Johnston G. S.
Publication year - 1969
Publication title -
journal of surgical oncology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.201
H-Index - 111
eISSN - 1096-9098
pISSN - 0022-4790
DOI - 10.1002/jso.2930010408
Subject(s) - technetium , medicine , technetium 99m , nuclear medicine , technetium 99 , isotopes of technetium , computed tomographic , radiology , gamma camera , scintigraphy , computed tomography
Instances of false positive technetium‐99 m hepatic scintiscans resulting from objects in a right jacket pocket, the interposition of an arm between the liver and the detector, the presence of deeply indented rib margins, and the presence of kidney shadows on the posterior scan are presented. Such false positive scans are caused by the easily shielded 140 kev gamma photon of technetium‐99 m . The problem may be accentuated by the tomographic effect of the various focused rectilinear scanners currently in use. By anticipating these problems and by promptly repeating scans following corrective measures, misinterpretation of the technetium‐99 m hepatic scintiscan may be avoided.