Clinical Context
A 62-year-old man with intermediate cardiovascular risk is referred for a coronary CT angiography (CCTA) to evaluate chest pain and assess coronary atherosclerotic burden. During the CCTA appointment, volumetric chest images are acquired. The ordering cardiologist requests an adjunctive, software-based perivascular adipose tissue (PVAT) analysis to generate a cardiac risk assessment that incorporates the CT-derived PVAT signal and patient-specific clinical data (age, sex, risk factors, medication history). A qualified imaging physician (cardiologist or radiologist) performs the interpretation of the PVAT risk analysis output, integrates it with the CCTA findings, and issues a combined report describing the perivascular fat–based risk metric, its clinical implications, and recommendations for follow-up or further testing.
Typical workflow:
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Patient presents to an outpatient imaging center or hospital radiology/cardiac CT suite for CCTA.
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CT technologist performs cardiac-gated CT acquisition per protocol.
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Post-processing technologist runs the PVAT analysis software as an add-on to the primary CCTA dataset.
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A credentialed physician reviews the software output, interprets the PVAT risk assessment in the clinical context, and documents findings in the radiology/cardiology report.
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Billing is submitted with the primary CCTA procedure code and the add-on PVAT analysis code 0993T appended to the primary procedure claim.
Typical site of service: Outpatient imaging center, hospital outpatient department, or inpatient radiology/cardiac imaging suite.
Typical patient scenario: An adult with atypical chest pain and multiple risk factors (hypertension, hyperlipidemia, family history of premature coronary artery disease) undergoing CCTA where additional risk stratification using software-derived perivascular fat analysis is requested to refine cardiovascular risk assessment and guide management decisions.