| Effect of hydration status on renal medulla attenuation on unenhanced CT scans. | |
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MedLine Citation:
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PMID: 8976956 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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OBJECTIVE: The purpose of this study was to assess the effect of hydration status on renal medulla attenuation during unenhanced CT. SUBJECTS AND METHODS: An unenhanced CT scan was obtained in 10 healthy men after 12-18 hr of complete fluid restriction and again after rehydration. CT images were reviewed for the presence and extent of dense renal medulla, defined as greater attenuation than the adjacent cortex. CT findings were correlated with urine-specific gravity and osmolality. RESULTS: Eight of the 10 subjects showed dense renal medulla on a CT scan after dehydration. After rehydration, complete resolution was seen on the CT scan in four of the eight subjects; three of the eight subjects showed a decrease in the extent of dense renal medulla. After rehydration, the eighth subject showed a slight increase in the attenuation of the renal medulla on the CT scan. Dense renal medulla was seen significantly more often on dehydration images (p = .035). CONCLUSION: Increased renal medulla attenuation on an unenhanced CT scan can be a normal finding related to dehydration. |
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Authors:
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M E Tublin; F N Tessler; T R McCauley; C D Kesack |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: AJR. American journal of roentgenology Volume: 168 ISSN: 0361-803X ISO Abbreviation: AJR Am J Roentgenol Publication Date: 1997 Jan |
Date Detail:
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Created Date: 1997-01-17 Completed Date: 1997-01-17 Revised Date: 2008-02-15 |
Medline Journal Info:
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Nlm Unique ID: 7708173 Medline TA: AJR Am J Roentgenol Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: 257-9 Citation Subset: AIM; IM |
Affiliation:
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Department of Radiology, Albany Medical College, NY 12208, USA. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adult Dehydration* Humans Kidney Medulla / radiography* Male Middle Aged Prospective Studies Tomography, X-Ray Computed* |
| Comments/Corrections | |
Comment In:
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AJR Am J Roentgenol. 1997 Sep;169(3):910
[PMID:
9275923
]
AJR Am J Roentgenol. 1997 Aug;169(2):599 [PMID: 9242789 ] |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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