Abstract:Objective To investigate the diagnostic efficacy of multi-slice spiral CT (MSCT) combined with albumin (ALB)-to-alkaline phosphatase (ALP) ratio (AAPR) in T staging of esophageal cancer.Methods A total of 80 patients with esophageal cancer admitted to Wujin Traditional Chinese Medicine Hospital from January 2018 to July 2023 were selected. All participants underwent MSCT scan and were tested for the levels of ALB, ALP and AAPR. With the pathological findings as the gold standard, the receiver operating characteristic (ROC) curves of MSCT and AAPR for diagnosing esophageal cancer were analyzed.Results The T stage of the low AAPR group was higher than that of the high AAPR group (P < 0.05). There was no significant difference in the T staging between the MSCT diagnosis and the pathological diagnosis (P > 0.05). The sensitivity of MSCT in the diagnosis of the T stage of esophageal cancer was 86.00% (95% CI: 0.807, 0.891), with the specificity being 80.00% (95% CI: 0.761, 0.851). The sensitivity and specificity of AAPR in the diagnosis of the T stage of esophageal cancer were 79.00% (95% CI: 0.753, 0.845) and 71.20% (95% CI: 0.697, 0.757), respectively. The sensitivity and specificity of MSCT combined with AAPR in the diagnosis of the T stage of esophageal cancer were 93.00% (95% CI: 0.783, 0.971) and 90.51% (95% CI: 0.842, 0.921). The diagnostic efficacy of MSCT combined with AAPR was higher than that of MSCT and that of AAPR alone, and the values of MSCT and MSCT combined with AAPR for diagnosing the T stage of esophageal cancer were higher (area under the curve > 0.9).Conclusion MSCT combined with AAPR is of value in the diagnosis of the T stage of esophageal cancer, and could be widely adopted in clinical practice.