Can nitroglycerin used to dilate the coronary arteries and obtain better images

Can nitroglycerin used to dilate the coronary arteries and obtain better images?

Yes, use of a nitroglycerin spray or tablet at the beginning of the scan is effective in dilating the coronary arteries and improving visualization of coronary branches. Nitroglycerin is contraindicated in the setting of hypotension and phosphodiesterase inhibitor use.

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