AIM: To evaluate the diagnostic ability of contrast-enhanced Magnetic Resonance Imaging (MRI) in assessment of the activity of perianal fistulas in Crohn's disease (CD) patients, compared to clinical data. MATERIALS AND METHODS: Fifty CD patients (25 men; mean[SD] age: 40.4[12.6] years) with known or suspected perianal fistulas underwent perianal space MRI. Radiological activity of disease was measured as the percentage increase (PI) of ROI values of fistulas in relation to ROI values of healthy local fat, after contrast administration. Clinical activity of disease was defined according to Perianal Disease Activity Index (PDAI) and Fistula Drainage Assessment (FDA). RESULTS: Forty-two patients presented perianal disease at MRI (55 fistulas identified). An association between both fistula's PI and PDAI (Pearson's coefficient 0.512, p<0.0001) and between PI and FDA (p=0.003) was demonstrated. Areas under ROC curves of PI values in relation to PDAI and FDA were respectively 0.876 [95%CI=(0.743-1.00), p<0.001] and 0.784 [95%CI=(0.588-0.980), p=0.003]. A cut-off value of PI, calculated on these preliminary data, correctly classified more than 90% of fistulas. CONCLUSIONS: Contrast-enhanced MRI with PI calculation offered practical information about activity of perianal fistulas and might be helpful in providing a comprehensive evaluation of CD perianal disease.
AIM: To evaluate the diagnostic ability of contrast-enhanced Magnetic Resonance Imaging (MRI) in assessment of the activity of perianal fistulas in Crohn's disease (CD) patients, compared to clinical data. MATERIALS AND METHODS: Fifty CDpatients (25 men; mean[SD] age: 40.4[12.6] years) with known or suspected perianal fistulas underwent perianal space MRI. Radiological activity of disease was measured as the percentage increase (PI) of ROI values of fistulas in relation to ROI values of healthy local fat, after contrast administration. Clinical activity of disease was defined according to Perianal Disease Activity Index (PDAI) and Fistula Drainage Assessment (FDA). RESULTS: Forty-two patients presented perianal disease at MRI (55 fistulas identified). An association between both fistula's PI and PDAI (Pearson's coefficient 0.512, p<0.0001) and between PI and FDA (p=0.003) was demonstrated. Areas under ROC curves of PI values in relation to PDAI and FDA were respectively 0.876 [95%CI=(0.743-1.00), p<0.001] and 0.784 [95%CI=(0.588-0.980), p=0.003]. A cut-off value of PI, calculated on these preliminary data, correctly classified more than 90% of fistulas. CONCLUSIONS: Contrast-enhanced MRI with PI calculation offered practical information about activity of perianal fistulas and might be helpful in providing a comprehensive evaluation of CD perianal disease.
Authors: Anuradha Shenoy-Bhangle; Katherine Nimkin; Dana Goldner; William F Bradley; Esther J Israel; Michael S Gee Journal: Pediatr Radiol Date: 2013-09-05
Authors: Michał Łodyga; Piotr Eder; Magdalena Gawron-Kiszka; Agnieszka Dobrowolska; Maciej Gonciarz; Marek Hartleb; Maria Kłopocka; Ewa Małecka-Wojciesko; Piotr Radwan; Jarosław Reguła; Edyta Zagórowicz; Grażyna Rydzewska Journal: Prz Gastroenterol Date: 2021-11-19
Authors: Gary R Lichtenstein; Edward V Loftus; Kim L Isaacs; Miguel D Regueiro; Lauren B Gerson; Bruce E Sands Journal: Am J Gastroenterol Date: 2018-03-27 Impact factor: 10.864
Authors: A Hillary Steinhart; Remo Panaccione; Laura Targownik; Brian Bressler; Reena Khanna; John K Marshall; Waqqas Afif; Charles N Bernstein; Alain Bitton; Mark Borgaonkar; Usha Chauhan; Brendan Halloran; Jennifer Jones; Erin Kennedy; Grigorios I Leontiadis; Edward V Loftus; Jonathan Meddings; Paul Moayyedi; Sanjay Murthy; Sophie Plamondon; Greg Rosenfeld; David Schwartz; Cynthia H Seow; Chadwick Williams Journal: J Can Assoc Gastroenterol Date: 2018-09-14