1.   And only the MRI can show the geography of a cardiac artery blockage and the inactivity of dead heart muscle on the same image.

2.   Cordis makes balloon catheters that open clogged cardiac arteries by pressing plaque against the artery wall.

3.   His cardiac arteries were too scarred for creating another bypass.

4.   The next step in the MRI research is making the cardiac arteries more visible, Ezzeddine says.

5.   It involves squirting dye into cardiac arteries and X-raying them to locate blockages and determine whether treatments such as angioplasty or bypass surgery should follow.

6.   Since having his cardiac arteries unblocked in July, Bowman has lowered his blood pressure and cholesterol through diet.