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COMPUTED TOMOGRAPHY CHARACTERISTICS INTRAVENOUS CONTRAST-ENHANCED OF RECTAL CANCER
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Abstract
Background: Rectal cancer is one of the most common cancers in our country as well as many countries all around the wold. Early diagnosis and accurate staging are necessary to select the most appropriate treatment. Objectives: To describe the computed tomography (CT) characteristics of the patients with rectal cancer. Materials and methods: This is a prospective cross sectional descriptive study of the patients in Can Tho Central General Hospital from May 2020 to May 2022 with histologically confirmed rectal cancer, using intravenous contrast-enhanced computed tomography preoperatively. Results: Totally 52 cases were recruited, among whom, 35 of them were males and 17 were females. The patients’ ages ranged between 36 to 86 years. The accuracy of computed tomography for detecting the T stage of rectal cancer was 82.7%. The sensitivity and specificity for evaluating the invasion of rectal tumor were T1/T2 (69.2%-97.4%), T3 (80%-84.4%), T4 (94%-90.9%). The sensitivity and specificity to detect lymph node metastases were 67.7% and 81%. Conclusion: Computed tomography is an important modality for improving the accuracy of TNM staging and for planning the appropriate rectal cancer treatment.
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Keywords
Rectal cancer, colorectal cancer, computed tomography, TNM staging
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