Heart Repair

Heart Repair

 

Myocardial Diffusion Imaging shows a patient’s heart before and after surgery. To obtain the images, the patient was injected with a chemical that binds to active myocardial (heart muscle) tissue, and includes rubidium-82, a radioactive marker. This emits gamma rays, so a gamma camera can make multiple scans to create a 3D map of the active heart muscle. Here the upper block shows slices from top to bottom of the heart, the middle block shows slices from back to front and the lowest block slices from the centre of the body outward. Alternate rows show the heart stressed and resting. In the array of images at left there are areas of significant missing activity, particularly in the stress images. This is due to a 99% blockage of the left anterior descending coronary artery. The blockage was treated by implanting a stent (mesh-like tube) at the blockage site.

Image © Dr Eric Hong Cho Tek, EH Heart Specialist Private Limited, Singapore

 

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