Computed tomography-based evaluation for normal adrenal gland size independent of body weight in dogs
Background: Computed tomography (CT) is useful for evaluating the anatomical position of the adrenal gland and the presence of adrenal tumor (AT) metastasis or vascular invasion from ATs. Aim: To determine a weight-independent reference for adrenal gland size in normal dogs using CT. Methods: The me...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Tripoli University
2023-04-01
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| Series: | Open Veterinary Journal |
| Subjects: | |
| Online Access: | http://www.ejmanager.com/fulltextpdf.php?mno=133716 |
| _version_ | 1797854928497016832 |
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| author | Ryutaro Yoshikawa Fumitaka Yoshikawa Sho Goto Ryota Iwasaki Takashi Mori |
| author_facet | Ryutaro Yoshikawa Fumitaka Yoshikawa Sho Goto Ryota Iwasaki Takashi Mori |
| author_sort | Ryutaro Yoshikawa |
| collection | DOAJ |
| description | Background: Computed tomography (CT) is useful for evaluating the anatomical position of the adrenal gland and the presence of adrenal tumor (AT) metastasis or vascular invasion from ATs.
Aim: To determine a weight-independent reference for adrenal gland size in normal dogs using CT.
Methods: The medical records database of Gifu University was searched for data collected from April 2010 to December 2015 for records of dogs that underwent abdominal CT. The CT images were retrospectively analyzed using a Digital Imaging and Communications in Medicine viewer. The ratios of the minor axes of the adrenal glands to the height of the spinal cavity were investigated.
Results: In total, 939 dogs were included. The left and right adrenal minor axes showed a moderate positive correlation with body weight (right: r = 0.61, p < 0.05; left: r = 0.54, p < 0.05). The L4 spinal cavity height showed a strong positive correlation with body weight (r = 0.82, p < 0.05). The left and right adrenal minor axis/L4 spinal cavity ratio did not correlate with body weight (right: r = 0.02, p = 0.53; left: r = −0.082, p < 0.05). The 95% confidence intervals of the adrenal minor axis/L4 spinal cavity ratios were as follows: right: 0.5–1.3 and left: 0.5–1.4.
Conclusion: These results indicate that the adrenal minor axis/L4 spinal cavity ratio can be used as an index of adrenal gland size that is not affected by body weight. Patients in whom the adrenal minor axis/L4 spinal cavity ratio exceeds the upper limit (right 1.3, left 1.4) may have adrenal swelling. [Open Vet J 2023; 13(2.000): 218-224] |
| first_indexed | 2024-04-09T20:15:19Z |
| format | Article |
| id | doaj.art-60925b4c59d3443694b6ce488a933b01 |
| institution | Directory Open Access Journal |
| issn | 2226-4485 |
| language | English |
| last_indexed | 2024-04-09T20:15:19Z |
| publishDate | 2023-04-01 |
| publisher | Tripoli University |
| record_format | Article |
| series | Open Veterinary Journal |
| spelling | doaj.art-60925b4c59d3443694b6ce488a933b012023-03-31T10:17:36ZengTripoli UniversityOpen Veterinary Journal2226-44852023-04-0113221822410.5455/OVJ.2023.v13.i2.10133716Computed tomography-based evaluation for normal adrenal gland size independent of body weight in dogsRyutaro Yoshikawa0Fumitaka YoshikawaSho GotoRyota IwasakiTakashi MoriGifu universityBackground: Computed tomography (CT) is useful for evaluating the anatomical position of the adrenal gland and the presence of adrenal tumor (AT) metastasis or vascular invasion from ATs. Aim: To determine a weight-independent reference for adrenal gland size in normal dogs using CT. Methods: The medical records database of Gifu University was searched for data collected from April 2010 to December 2015 for records of dogs that underwent abdominal CT. The CT images were retrospectively analyzed using a Digital Imaging and Communications in Medicine viewer. The ratios of the minor axes of the adrenal glands to the height of the spinal cavity were investigated. Results: In total, 939 dogs were included. The left and right adrenal minor axes showed a moderate positive correlation with body weight (right: r = 0.61, p < 0.05; left: r = 0.54, p < 0.05). The L4 spinal cavity height showed a strong positive correlation with body weight (r = 0.82, p < 0.05). The left and right adrenal minor axis/L4 spinal cavity ratio did not correlate with body weight (right: r = 0.02, p = 0.53; left: r = −0.082, p < 0.05). The 95% confidence intervals of the adrenal minor axis/L4 spinal cavity ratios were as follows: right: 0.5–1.3 and left: 0.5–1.4. Conclusion: These results indicate that the adrenal minor axis/L4 spinal cavity ratio can be used as an index of adrenal gland size that is not affected by body weight. Patients in whom the adrenal minor axis/L4 spinal cavity ratio exceeds the upper limit (right 1.3, left 1.4) may have adrenal swelling. [Open Vet J 2023; 13(2.000): 218-224]http://www.ejmanager.com/fulltextpdf.php?mno=133716adrenal sizebody weightcaninecomputed tomographynovel index |
| spellingShingle | Ryutaro Yoshikawa Fumitaka Yoshikawa Sho Goto Ryota Iwasaki Takashi Mori Computed tomography-based evaluation for normal adrenal gland size independent of body weight in dogs Open Veterinary Journal adrenal size body weight canine computed tomography novel index |
| title | Computed tomography-based evaluation for normal adrenal gland size independent of body weight in dogs |
| title_full | Computed tomography-based evaluation for normal adrenal gland size independent of body weight in dogs |
| title_fullStr | Computed tomography-based evaluation for normal adrenal gland size independent of body weight in dogs |
| title_full_unstemmed | Computed tomography-based evaluation for normal adrenal gland size independent of body weight in dogs |
| title_short | Computed tomography-based evaluation for normal adrenal gland size independent of body weight in dogs |
| title_sort | computed tomography based evaluation for normal adrenal gland size independent of body weight in dogs |
| topic | adrenal size body weight canine computed tomography novel index |
| url | http://www.ejmanager.com/fulltextpdf.php?mno=133716 |
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