Pancreatic tumors: comparison of dual-phase helical CT and endoscopic sonography

• Published in: American journal of roentgenology (1976) Vol. 170; no. 5; pp. 1315 - 1322
• Main Authors: Legmann, P, Vignaux, O, Dousset, B, Baraza, AJ, Palazzo, L, Dumontier, I, Coste, J, Louvel, A, Roseau, G, Couturier, D, Bonnin, A
• Format: Journal Article
• Language: English
• Published: Leesburg, VA Am Roentgen Ray Soc 01-05-1998; American Roentgen Ray Society
• Subjects: Adenocarcinoma - diagnosis; Adenocarcinoma - diagnostic imaging; Adenocarcinoma - pathology; Adenocarcinoma - secondary; Adenoma, Islet Cell - diagnosis; Adenoma, Islet Cell - diagnostic imaging; Adenoma, Islet Cell - pathology; Adolescent; Adult; Aged; Biological and medical sciences; Biopsy; Carcinoma - diagnosis; Carcinoma - diagnostic imaging; Carcinoma - pathology; Carcinoma - secondary; Chi-Square Distribution; Digestive system; Digestive system. Abdomen; Endosonography; Female; Follow-Up Studies; Forecasting; Humans; Image Processing, Computer-Assisted - methods; Investigative techniques, diagnostic techniques (general aspects); Liver Neoplasms - secondary; Lymphatic Metastasis - diagnosis; Male; Medical sciences; Middle Aged; Neoplasm Staging; Pancreatic Neoplasms - diagnosis; Pancreatic Neoplasms - diagnostic imaging; Pancreatic Neoplasms - pathology; Pancreatic Neoplasms - surgery; Prospective Studies; Radiodiagnosis. Nmr imagery. Nmr spectrometry; Sensitivity and Specificity; Tomography, X-Ray Computed - methods; Ultrasonic investigative techniques; Sonography; Human; Radiodiagnosis; Stage classification; Spiral; Intraluminal; Echography; Digestive diseases; Medical imagery; Tumor; Computerized axial tomography; Pancreas; Comparative study; Pancreatic disease
• ISSN: 0361-803X; 1546-3141
• DOI: 10.2214/ajr.170.5.9574609

The purpose of this study was to compare dual-phase helical CT and endosonography for the diagnosis and staging of pancreatic tumors.
Thirty patients with suspected pancreatic tumors underwent endosonography and dual-phase helical CT. A pathologic diagnosis was obtained in all cases with surgery (n = 23) or biopsy (n = 7), resulting in 27 neoplasms. Dual-phase helical CT and endosonographic findings were correlated with surgical and pathologic findings to determine diagnosis and resectability of pancreatic tumors.
Overall diagnostic sensitivity was 92% for dual-phase helical CT and 100% for endosonography (p = .45). Overall accuracy for staging of pancreatic tumors was 93% for both dual-phase helical CT and endosonography. Overall accuracy for predicting resectability was 90% for both dual-phase helical CT and endosonography. Accuracy of predicting unresectability was 100% for dual-phase helical CT and 86% for endosonography (p > .80). Differences were not considered statistically significant.
Dual-phase helical CT and endoscopic sonography do not differ significantly for diagnosis and assessment of resectability of pancreatic tumors.