Tag Archives: mapping

Cardiac MRI
4
Feb

Overview

Cardiac MRI offers detailed assessment of cardiac structure function and tissue characterization. It provides quantitative measures of ventricular volumes and ejection fraction. It is valuable for cardiomyopathy and myocarditis evaluation.

Tissue Characterization

Late gadolinium enhancement identifies scar and fibrosis. T1 and T2 mapping provide quantitative tissue metrics. These techniques aid in diagnosis and prognosis.

Functional Assessment

Cine MRI evaluates wall motion and valve function. Flow quantification measures shunts and regurgitation. Stress MRI assesses ischemia in selected patients.

Practical Considerations

Cardiac MRI requires specialized protocols and expertise. Scan time and patient cooperation affect study success. Coordination with cardiology optimizes clinical utility.

Neuroimaging
4
Feb

Overview

Neuroimaging includes CT MRI and nuclear techniques for brain and spine. It evaluates stroke tumors infection and degenerative disease. Advanced imaging provides functional and metabolic information.

Stroke Imaging

CT and MRI protocols rapidly assess ischemic and hemorrhagic stroke. Perfusion imaging identifies salvageable tissue. Rapid imaging guides reperfusion therapy decisions.

Tumor Evaluation

MRI provides detailed tumor characterization and extent. Advanced sequences assess cellularity vascularity and metabolism. Imaging guides biopsy and treatment planning.

Functional Imaging

Functional MRI and PET assess brain activity and metabolism. These techniques support presurgical mapping and research. They provide insight into neurologic disorders and recovery.

Cardiac MRI CMR
4
Feb

Overview

CMR provides comprehensive assessment of cardiac morphology ventricular function myocardial viability perfusion and tissue characterization without ionizing radiation.

Technique

Cine imaging late gadolinium enhancement T1 and T2 mapping and perfusion sequences address different clinical questions.

Clinical Uses

Cardiomyopathy evaluation myocarditis viability assessment congenital heart disease and valvular assessment.

Limitations and Safety

Longer exam times and contraindications for some implants. Gadolinium use requires renal function assessment.

Lymphoscintigraphy Sentinel Node Mapping
4
Feb

Overview

Lymphoscintigraphy maps lymphatic flow and sentinel nodes using injected radiocolloids for surgical planning and lymphedema assessment.

Technique

Dynamic and static imaging with planar or SPECT CT localizes sentinel nodes and evaluates lymphatic obstruction.

Clinical Uses

Sentinel lymph node mapping in oncology and evaluation of lymphedema.

Limitations and Safety

Spatial resolution limited. Combined modalities improve localization for surgery.