Nuclear magnetic resonance imaging characteristics of gallstones in vitro
| Autor: | Alexander R. Margulis, Hedvig Hricak, L E Crooks, R A Filly, L W Way, R Bernhoft, Kirk L. Moon |
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| Rok vydání: | 1983 |
| Předmět: |
Magnetic Resonance Spectroscopy
medicine.diagnostic_test business.industry Water Resonance Bilirubin Magnetic resonance imaging Gallstones Nuclear magnetic resonance spectroscopy Solid material medicine.disease Radiography Cholesterol Nuclear magnetic resonance Cholelithiasis Biliary tract Spin echo Humans Medicine Calcium Radiology Nuclear Medicine and imaging Imaging technique business Nuclear medicine |
| Zdroj: | Radiology. 148:753-756 |
| ISSN: | 1527-1315 0033-8419 |
| DOI: | 10.1148/radiology.148.3.6878696 |
| Popis: | The nuclear magnetic resonance (NMR) imaging characteristics of gallstones of various composition from 36 patients were studied in vitro using a spin-echo imaging technique. The majority of gallstones (83%) produced no measurable NMR signal despite having a mean water content of 12% and a mean cholesterol content of 61%. Six (17%) of the stones had a weak but measurable signal in the center of the stone, which was thought to represent signal from water in clefts or pores within the stones. The mean water and cholesterol content of the stones with measurable signal did not differ significantly from that of stones with no signal. A possible explanation for these findings, based on the known NMR characteristics of solid materials, is offered. |
| Databáze: | OpenAIRE |
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