Related Experiment Video
Updated: Jun 1, 2026
07:00
Diffusion Tensor Magnetic Resonance Imaging in Chronic Spinal Cord Compression
Published on: May 7, 2019
Diffusion weighted MR imaging in acute vertebral compression fractures: differentiation between malignant and benign
Aa Bhugaloo1, Bjj Abdullah, Ys Siow
1Department of Biomedical Imaging, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia.
Biomedical Imaging and Intervention Journal
|May 27, 2011
Summary
Diffusion-weighted MR imaging (DWI) effectively differentiates benign from malignant vertebral compression fractures. This technique, particularly the signal intensity ratio, offers high accuracy in distinguishing fracture types in the Malaysian population.
Area of Science:
- Radiology
- Medical Imaging
- Oncology
Background:
- Vertebral compression fractures (VCFs) present diagnostic challenges.
- Differentiating benign from malignant VCFs is crucial for appropriate patient management.
- Conventional MRI sequences have limitations in characterizing VCFs.
Purpose of the Study:
- To evaluate the diagnostic performance of diffusion-weighted MR imaging (DWI) compared to conventional MRI sequences.
- To assess DWI's specificity and sensitivity in differentiating benign from malignant VCFs.
- To analyze quantitative signal intensity in DWI for improved characterization.
Main Methods:
- 35 patients with 68 VCFs underwent MRI using T1 WI, T2 WI, contrast-enhanced T1 WI, and steady-state free precession DWI (SSFP DWI).
- Qualitative signal intensity analysis was performed by comparing lesions to adjacent marrow.
- Quantitative assessment of signal intensity ratio in SSFP DWI was conducted.
Main Results:
- Conventional T1 WI and T2 WI showed limited diagnostic value due to signal variability.
- Contrast-enhanced MRI achieved 93% sensitivity and 71% specificity.
- SSFP DWI demonstrated 87% sensitivity and 92% specificity, with 90% positive and negative predictive values.
- A significant difference in signal intensity ratio was found between benign (0.96) and malignant (1.73) lesions (p=0.0001).
Conclusions:
- SSFP DWI exhibits high positive and negative predictive values (90%) for detecting malignant VCFs.
- The signal intensity ratio in DWI is an excellent criterion for differentiating benign and malignant lesions.
- Iso- or hypointensity suggests benign VCFs, while hyperintensity indicates malignancy.
Related Concept Videos
01:24Magnetic Resonance Imaging
Magnetic resonance imaging (MRI) is a noninvasive medical imaging technique based on a phenomenon of nuclear physics discovered in the 1930s, in which matter exposed to magnetic fields and radio waves was found to emit radio signals. In 1970, a physician and researcher named Raymond Damadian noticed that malignant (cancerous) tissue gave off different signals than normal body tissue. He applied for a patent for the first MRI scanning device in clinical use by the early 1980s. The early MRI...
01:30Radiological Investigation II: MRI and Ventilation Perfusion Scan
Description
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...
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...
01:20Venous Thrombosis II: Clinical Manifestations and Diagnostic Studies
The key difference between Superficial Vein Thrombosis (SVT) and Deep Vein Thrombosis (DVT) lies in their location and severity.Clinical ManifestationsSVT typically presents with localized pain, tenderness, and redness along the course of a superficial vein, often accompanied by a palpable, cord-like structure under the skin. This condition is usually less dangerous than DVT but can be uncomfortable and may lead to complications such as cellulitis or, rarely, a clot extension into the deep...