Fig. 1From: Evaluation of DNA damage induced by ionizing radiation from myocardial perfusion imaging: a pilot studyFluorescence microscopy images (× 400) showing examples of patterns of DNA damage in the comet assay. Left panel: Nucleoid structures depicting class 0 of damage (no tail) and class 1 (small tail). Middle panel: class 2 of damage (larger tail). Right panel: class 3 of damage (profound fragmentation, very large tail)Back to article page