Related Experiment Videos
Cerebral tuberous sclerosis: postmortem magnetic resonance imaging and pathologic anatomy
J R Nixon1, G M Miller, H Okazaki
1Department of Diagnostic Radiology, Mayo Clinic, Rochester, MN 55905.
Mayo Clinic Proceedings
|March 1, 1989
Summary
Postmortem magnetic resonance imaging (MRI) effectively detects tuberous sclerosis brain lesions, showing signal changes similar to those in living patients. This technique is valuable for studying the disease, even in fixed tissues.
Area of Science:
- Neurology
- Radiology
- Pathology
Background:
- Tuberous sclerosis is a genetic disorder characterized by the growth of tumors in various organs.
- Diagnosing tuberous sclerosis often involves neuroimaging, but changes can be affected by age.
Purpose of the Study:
- To evaluate the utility of postmortem magnetic resonance imaging (MRI) in identifying brain lesions in tuberous sclerosis.
- To compare postmortem MRI findings with those in living patients and autopsy data.
Main Methods:
- Postmortem MRI was performed on five brains from patients diagnosed with tuberous sclerosis.
- T1 and T2 relaxation times were analyzed in white matter adjacent to cortical tubers.
- Findings were compared with clinical, gross, and histopathologic data.
Main Results:
- Prolonged T1 and T2 relaxation times, indicative of lesions, were identified in white matter subjacent to cortical tubers.
- These signal changes in postmortem brains mirrored those observed in living patients.
- MRI detected cortical tubers in older patients, suggesting MRI findings are less affected by aging than CT scans.
Conclusions:
- Postmortem MRI is a viable tool for investigating tuberous sclerosis, even in formalin-fixed tissues.
- MRI findings in postmortem studies correlate well with in-vivo MRI and autopsy findings.
- This technique aids in understanding the long-term effects and progression of tuberous sclerosis.