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Modern medical imaging has made invasive exploratory surgeries a thing of the past. The X-Ray portions of medical imaging are being phased out by technologies like MR angiography (MRA), CT angiography (CTA), and ultrasound angiography. These are way to detect blockages and plaque in blood vessels with. They also do away with the dyes that can cause anaphylactic shock in rare cases, and minor irritation in others. Conventional angiography will soon only be necessary as an aid for angioplasty sur…