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Lung MRI at 3.0 T: a comparison of helical CT and high-field MRI in the detection of diffuse lung disease
- Source :
- European Radiology. 15:324-328
- Publication Year :
- 2004
- Publisher :
- Springer Science and Business Media LLC, 2004.
-
Abstract
- The purpose of this study was to evaluate the feasibility of high-field magnetic resonance imaging (MRI) of the lung using a T2-weighted fast-spin echo (TSE) sequence. Comparison was made with helical computed tomography CT findings in patients with diffuse pulmonary diseases. Prospective segment-wise analysis of high-field MR imaging findings in 15 patients with diffuse pulmonary diseases was made using helical CT and HRCT as the standard of reference. The MR studies were performed on a 3.0-T whole body system (Intera 3T, Philips Medical Systems) using a T2w TSE sequence with respiratory and cardiac gating (TE 80 ms TR 1,500-2,500 ms; turbo factor 17; 22 slices with 7/2-mm slice thickness and gap; 256x192 matrix). MR artifacts were graded on a three-point scale (low, moderate, high). Lung MR studies were prospectively analyzed segment-by-segment and diagnosed as healthy or pathological; results were compared with helical CT findings. In all 15 patients, MR imaging of the lung was successful. All 15 MR studies were compromised by artifacts; however, the severity of these artifacts was classified as low or moderate in 8/15, respectively, 7/15 cases. A total of 143/285 lung segments showed diffuse lung disease in helical CT. With MRI, 133 of these 143 segments (93%) were judged to be diseased. The ten segments that received false negative MR diagnoses displayed non-acute pulmonary lesions with inherently low proton density (scars, granulomas). MRI at 3.0 T can detect diffuse pulmonary disease with a high sensitivity. Based on this experience, further pulmonary studies with high-field systems appear justified and promising.
- Subjects :
- Adult
Lung Diseases
Male
medicine.medical_specialty
Humans
Medicine
Radiology, Nuclear Medicine and imaging
Prospective Studies
Respiratory system
Prospective cohort study
Aged
Neuroradiology
Aged, 80 and over
Lung
medicine.diagnostic_test
business.industry
Ultrasound
Magnetic resonance imaging
Interventional radiology
General Medicine
Middle Aged
Magnetic Resonance Imaging
Helical ct
medicine.anatomical_structure
Feasibility Studies
Female
Radiology
business
Nuclear medicine
Tomography, Spiral Computed
Subjects
Details
- ISSN :
- 14321084 and 09387994
- Volume :
- 15
- Database :
- OpenAIRE
- Journal :
- European Radiology
- Accession number :
- edsair.doi.dedup.....796296140127faab4fb35b8ca5e9f740