Peritoneal fluid causing inferior attenuation on SPECT thallium-201 myocardial imaging in women
On SPECT thallium images, myocardial left ventricular (LV) anterior wall attenuation due to breast tissue is common in women. In contrast, in men, inferior wall counts are normally decreased compared to anterior counts. The purpose of this report is to describe cases of inferior wall attenuation of counts in women caused by peritoneal fluid, not myocardial disease. Twelve consecutive SPECT thallium myocardial studies performed in women on peritoneal dialysis, being evaluated for kidney transplant, were included in this study. For all studies, 3.5 mCi 201Tl were injected intravenously. Thirty-two images were acquired over 180 degrees (45 degrees RAO progressing to 45 degrees LPO) at 40 sec per stop. SPECT images were reviewed in short axis, horizontal long and vertical long axes. Data were also displayed in bullseye format with quantitative comparison to gender-matched normal files. Ten of 12 female patients studied had inferior wall defects on images, confirmed by bullseye display. All patients had approximately 2 liters of peritoneal fluid. Review of planar rotational views showed diaphragm elevation and fluid margin attenuations affecting left ventricular inferior wall. Thus, peritoneal fluid is a cause of inferior attenuation on 201Tl cardiac imaging.
- Research Organization:
- Emory Univ. School of Medicine, Atlanta, GA (USA)
- OSTI ID:
- 6604515
- Journal Information:
- J. Nucl. Med.; (United States), Vol. 29:11
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
IMAGE PROCESSING
DATA COVARIANCES
MYOCARDIUM
SINGLE PHOTON EMISSION COMPUTED TOMOGRAPHY
THALLIUM 201
ABSORPTION
BODY FLUIDS
PERITONEUM
WOMEN
ANIMALS
BETA DECAY RADIOISOTOPES
BIOLOGICAL MATERIALS
BODY
CARDIOVASCULAR SYSTEM
COMPUTERIZED TOMOGRAPHY
DAYS LIVING RADIOISOTOPES
DIAGNOSTIC TECHNIQUES
ELECTRON CAPTURE RADIOISOTOPES
EMISSION COMPUTED TOMOGRAPHY
FEMALES
HEART
HEAVY NUCLEI
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
MAMMALS
MAN
MATERIALS
MEMBRANES
MUSCLES
NUCLEI
ODD-EVEN NUCLEI
ORGANS
PRIMATES
PROCESSING
RADIOISOTOPES
SECONDS LIVING RADIOISOTOPES
SEROUS MEMBRANES
THALLIUM ISOTOPES
TOMOGRAPHY
VERTEBRATES
550601* - Medicine- Unsealed Radionuclides in Diagnostics