Microhepatica is a common radiographic finding in patients with portosystemic shunt. For radiographic liver size assessment, liver length normalized to T11 vertebral length may be a more reliable criterion than gastric axis because it is less influenced by nonpathologic conditions. This retrospectiv...
Microhepatica is a common radiographic finding in patients with portosystemic shunt. For radiographic liver size assessment, liver length normalized to T11 vertebral length may be a more reliable criterion than gastric axis because it is less influenced by nonpathologic conditions. This retrospective and cross-sectional study aimed to investigate the diagnostic accuracy of predicting canine extrahepatic portosystemic shunt using radiographic liver size assessment. Based on CT and medical findings, 141 dogs were grouped as EHPSS (n = 87) and control (n = 54). Radiographic liver length (LL), radiographic T11 vertebral length (T11), ratio of radiographic liver length to T11 vertebral length (LL/T11 ratio), computed tomographic liver length (LLCT), computed tomographic T11 vertebral length (T11CT), ratio of computed tomographic liver length to T11 vertebral length (LLCT/T11CT ratio) were evaluated. The LL/T11 ratio in EHPSS group (4.09 ± 0.55, mean ± standard deviation) was significantly smaller than that in control group (5.81 ± 1.01, P < 0.001). The area under the curve was 0.9485. Using the optimized cut-off point (< 4.70), the sensitivity and specificity for the diagnosis of EHPSS were 85.06% and 87.04%, respectively. There were significant correlations between LL and LLCT, T11 and T11CT, and LL/T11 and LLCT/T11CT in EHPSS and control group (Spearman’s correlation coefficient r = 0.8401, 0,8221, 0.8592, 0.9077, 0.6608 and 0.6616, respectively, P < 0.001). In conclusion, radiographic liver size assessment is accurate screening test for the diagnosis of EHPSS. The optimal cut-off value of < 4.70 for LL/T11 ratio will be a clinically useful parameter in the initial evaluation of dogs with suspected EHPSS.
Microhepatica is a common radiographic finding in patients with portosystemic shunt. For radiographic liver size assessment, liver length normalized to T11 vertebral length may be a more reliable criterion than gastric axis because it is less influenced by nonpathologic conditions. This retrospective and cross-sectional study aimed to investigate the diagnostic accuracy of predicting canine extrahepatic portosystemic shunt using radiographic liver size assessment. Based on CT and medical findings, 141 dogs were grouped as EHPSS (n = 87) and control (n = 54). Radiographic liver length (LL), radiographic T11 vertebral length (T11), ratio of radiographic liver length to T11 vertebral length (LL/T11 ratio), computed tomographic liver length (LLCT), computed tomographic T11 vertebral length (T11CT), ratio of computed tomographic liver length to T11 vertebral length (LLCT/T11CT ratio) were evaluated. The LL/T11 ratio in EHPSS group (4.09 ± 0.55, mean ± standard deviation) was significantly smaller than that in control group (5.81 ± 1.01, P < 0.001). The area under the curve was 0.9485. Using the optimized cut-off point (< 4.70), the sensitivity and specificity for the diagnosis of EHPSS were 85.06% and 87.04%, respectively. There were significant correlations between LL and LLCT, T11 and T11CT, and LL/T11 and LLCT/T11CT in EHPSS and control group (Spearman’s correlation coefficient r = 0.8401, 0,8221, 0.8592, 0.9077, 0.6608 and 0.6616, respectively, P < 0.001). In conclusion, radiographic liver size assessment is accurate screening test for the diagnosis of EHPSS. The optimal cut-off value of < 4.70 for LL/T11 ratio will be a clinically useful parameter in the initial evaluation of dogs with suspected EHPSS.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.