Related Experiment Video
Updated: Jul 18, 2026

Multi-modal Pulmonary Imaging: Using Complementary Information from CT and Hyperpolarized 129Xe MRI to Evaluate Lung Structure-Function
Published on: April 12, 2024
Pulmonary function tests, high-resolution computed tomography findings and inflammatory bowel disease
1Gastroenterology Department, Turkiye Yuksek Ihtisas Hospital, Ankara, Turkey.
Pulmonary function tests and high-resolution CT scans showed similar abnormalities in patients with inflammatory bowel disease (IBD), regardless of Crohn's disease or ulcerative colitis type. Disease activity did not significantly impact these lung findings.
Area of Science:
- Gastroenterology
- Pulmonology
- Radiology
Background:
- The link between inflammatory bowel disease (IBD) and lung complications remains unclear.
- Understanding pulmonary involvement in IBD is crucial for comprehensive patient care.
Purpose of the Study:
- To investigate pulmonary function tests (PFTs) and high-resolution computed tomography (HRCT) findings in IBD patients.
- To explore the relationship between these pulmonary assessments and IBD disease activity.
Main Methods:
- Prospective study of 52 IBD patients (20 Crohn's disease, 32 ulcerative colitis).
- Standard PFTs and HRCT thorax imaging were performed.
- Disease activity assessed using Crohn's disease activity index and Rachmilewitz index; medication and smoking status recorded.
Main Results:
- 25% of Crohn's disease patients and 6.25% of ulcerative colitis patients had ventilatory defects.
- HRCT revealed abnormalities in 60% of Crohn's disease and 50% of ulcerative colitis patients.
- No significant differences in PFTs or HRCT findings were observed between Crohn's disease and ulcerative colitis, nor were they correlated with disease activity.
Conclusions:
- Pulmonary function and HRCT findings are comparable in Crohn's disease and ulcerative colitis.
- IBD disease activity does not appear to influence pulmonary test results or HRCT findings.
Related Concept Videos
Chronic Obstructive Pulmonary Disease-IV: Assessement and Diagnostic Studies
Medical History
Chronic Obstructive Pulmonary Disease III: Chronic Bronchitis Features
Inflammatory Bowel Disease III: Diagnostic Studies and Management I-Nutritional Therapy
Diagnostic studies
A colonoscopy is the definitive screening test, distinguishing ulcerative colitis from other colon diseases with similar symptoms. During a colonoscopy test, inflamed mucosa with exudate ulcerations can be observed, and biopsies are taken to determine the histologic characteristics of the colonic...
Radiological Investigation II: MRI and Ventilation Perfusion Scan
Magnetic Resonance Imaging (MRI) and Ventilation Perfusion Scans are two radiological investigations that offer detailed diagnostic images of the body, particularly lung structures.
MRI
MRI uses magnetic fields and radiofrequency signals to distinguish between normal and abnormal tissues. This technology provides a more detailed diagnostic image than CT scans, enabling it to characterize pulmonary nodules, stage bronchogenic carcinoma, and evaluate inflammatory activity in...
Pulmonary Function Tests
Pulmonary Function Tests are crucial diagnostic tools for assessing respiratory function, particularly in patients with chronic respiratory disorders. They comprehensively evaluate lung volumes, ventilatory function, breathing mechanics, diffusion, and gas exchange. These tests help diagnose pulmonary diseases and play a significant role in monitoring disease progression, evaluating disability, and assessing response to therapy.
PFTs involve using a spirometer, a...
Inflammatory Bowel Disease II: Ulcerative Colitis
