Abbreviation	Meaning
TRO-CTA	Triple-Rule-Out Computed Tomography Angiography
CM	Contrast Media
CCTA	Coronary Computed Tomography Angiography
PA	Pulmonary Artery
TA	Thoracic Aorta
CA	Coronary Artery
PE	Pulmonary Embolism
AD	Aortic Dissection
ACS	Acute Coronary Syndrome
DLP	Dose-Length Product
CS	Calcium Score
ATVS	Automatic tube voltage selection
SD	Standard Deviation
PT	Pulmonary Trunk
LPA	Left Pulmonary Artery
RPA	Right Pulmonary Artery
AO	Aortic Root
AA	Aortic Arch
DA	Descending Aorta
LMCA-P	Proximal Left Main Coronary Artery
LAD-M	Middle Left Anterior Descending
LAD-D	Distal Left Anterior Descending
LCX-M	Middle Left Circumflex
LCX-D	Distal Left Circumflex
RCA-P	Proximal Right Coronary Artery
RCA-M	Middle Right Coronary Artery
RCA-D	Distal Coronary Right Artery
ESM	Erector Spinae Muscle
PVAT	Perivascular Adipose Tissue
SNR	Signal-to-Noise Ratio
CNR	Contrast-to-Noise Ratio
CTDIvol	CT dose index
ED	Effective Dose