Nidhi Prabhakar1, Naveen Kalra2, Deepak K Bhasin3, Surinder S Rana3, Vikas Gupta4, Rajinder Singh4, Niranjan Khandelwal1. 1. Department of Radiodiagnosis, PGIMER, Chandigarh 160012, India. 2. Department of Radiodiagnosis, PGIMER, Chandigarh 160012, India. Electronic address: navkal2004@yahoo.com. 3. Department of Gastroenterology, PGIMER, Chandigarh, India. 4. Department of General Surgery, PGIMER, Chandigarh, India.
Abstract
RATIONALE AND OBJECTIVE: Patients with ulcerative colitis require recurrent conventional colonoscopy (CC) to define the extent of the disease. Computed tomography (CT) colonography (CTC) can be used as an alternative technique for studying the colon in these patients. The purpose of the study was to compare the findings of CTC to CC in patients with ulcerative colitis. MATERIALS AND METHODS: Twenty patients proven to have ulcerative colitis on biopsy and in clinical remission state were enrolled in the study. They underwent CTC and CC within 1 week of each test. The investigators performing CTC and CC were blinded to the findings of each other. The chi-square test, kappa test, sensitivity, and specificity were used to compare the findings on CTC and CC. In addition, patient acceptance for both the procedures was compared. RESULTS: Sensitivity and specificity on CTC for detecting granular appearance were 81.0% and 73.8%, respectively, and for pseudopolyps were 82.1% and 84.5%, respectively. Good correlation was seen between CTC and CC for detection of granular appearance and pseudopolyps. Loss of haustral folds, wall thickening, pericolonic vascularity, and pericolonic lymph nodes seen on CTC were found to correlate with intraluminal findings seen on CC. Patient acceptance for CTC was better than that for CC. CONCLUSIONS: CTC can be used for evaluating patients with ulcerative colitis who are in remission.
RATIONALE AND OBJECTIVE:Patients with ulcerative colitis require recurrent conventional colonoscopy (CC) to define the extent of the disease. Computed tomography (CT) colonography (CTC) can be used as an alternative technique for studying the colon in these patients. The purpose of the study was to compare the findings of CTC to CC in patients with ulcerative colitis. MATERIALS AND METHODS: Twenty patients proven to have ulcerative colitis on biopsy and in clinical remission state were enrolled in the study. They underwent CTC and CC within 1 week of each test. The investigators performing CTC and CC were blinded to the findings of each other. The chi-square test, kappa test, sensitivity, and specificity were used to compare the findings on CTC and CC. In addition, patient acceptance for both the procedures was compared. RESULTS: Sensitivity and specificity on CTC for detecting granular appearance were 81.0% and 73.8%, respectively, and for pseudopolyps were 82.1% and 84.5%, respectively. Good correlation was seen between CTC and CC for detection of granular appearance and pseudopolyps. Loss of haustral folds, wall thickening, pericolonic vascularity, and pericolonic lymph nodes seen on CTC were found to correlate with intraluminal findings seen on CC. Patient acceptance for CTC was better than that for CC. CONCLUSIONS: CTC can be used for evaluating patients with ulcerative colitis who are in remission.
Authors: Cristiano Spada; Cesare Hassan; Davide Bellini; David Burling; Giovanni Cappello; Cristina Carretero; Evelien Dekker; Rami Eliakim; Margriet de Haan; Michal F Kaminski; Anastasios Koulaouzidis; Andrea Laghi; Philippe Lefere; Thomas Mang; Sebastian Manuel Milluzzo; Martina Morrin; Deirdre McNamara; Emanuele Neri; Silvia Pecere; Mathieu Pioche; Andrew Plumb; Emanuele Rondonotti; Manon Cw Spaander; Stuart Taylor; Ignacio Fernandez-Urien; Jeanin E van Hooft; Jaap Stoker; Daniele Regge Journal: Eur Radiol Date: 2021-05 Impact factor: 5.315