Glasshaus Imaging · Coronary CTA reading

Coronary CTA reading services for hospitals, imaging centers and cardiology groups

Remote coronary CTA reads by a cardiothoracic radiologist, reported with CAD-RADS 2.0 and a full review of the chest. No PACS or IT build on your side.

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  • Cleveland Clinic fellowship-trained
  • Board-certified (ABR, CBCMR)
  • Licensed in 38 states
  • Routine reads within 24 hours

Read and reviewed by Giovanni E. Lorenz, DO, Cleveland Clinic fellowship-trained cardiothoracic radiologist. Board-certified: American Board of Radiology; Certification Board of Cardiovascular Magnetic Resonance. Last reviewed .

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A cardiac radiologist for every coronary CTA you scan

Coronary CTA has Class 1 recommendations in the 2021 AHA/ACC chest pain guideline for several groups of patients with chest pain.2 Many sites can scan it but have no one trained to read it. Glasshaus reads the coronaries and the rest of the chest, and adds FFR-CT and plaque analysis when they help.

What we read on coronary CTA

  • Stenosis and CAD-RADS 2.0

    Per-patient stenosis category, plaque burden (P1 to P4) and modifiers, per the 2022 SCCT/ACC/ACR/NASCI consensus.1

  • Plaque assessment

    Calcified and noncalcified plaque, high-risk plaque features and overall burden. AI plaque quantification on request.

  • Calcium scoring

    Agatston coronary calcium score, stand-alone or with the coronary CTA.

  • Coronary anomalies

    Origin and course of anomalous coronary arteries, including interarterial segments.

  • Bypass grafts and stents

    Graft patency and in-stent evaluation when image quality allows.

  • TAVR and structural planning

    Annulus sizing, root anatomy and access vessels before TAVR, and left atrial appendage anatomy before occlusion.3

  • Cardiac structure and function

    Chambers, valves, pericardium and ventricular function when acquired.

  • Extracardiac review

    The full field of view on every study: lungs, mediastinum, aorta and upper abdomen.

Need FFR-CT or AI plaque quantification? See FFR-CT and coronary plaque analysis reading.

CCTA overread: extracardiac review for cardiology-read studies

Many cardiology groups read the coronaries on their own CTAs. The same scan also covers part of the lungs, mediastinum, aorta and upper abdomen. A systematic review of 13 studies and 11,703 patients found extracardiac findings in 41% of coronary CTAs, and clinically significant ones in 16%.4

Glasshaus provides a radiologist overread of the non-cardiac structures. Your cardiologists keep the coronary read; we report incidental findings with clear follow-up recommendations, so nothing outside the heart is missed.

Coronary CTA and cardiac CT CPT codes

  • 75571CT heart without contrast, with quantitative evaluation of coronary calcium. Reported only when calcium scoring is a stand-alone study.
  • 75572CT heart with contrast for cardiac structure and morphology, including 3D postprocessing, function and venous structures if performed.
  • 75573Same as 75572, in the setting of congenital heart disease.
  • 75574CT angiography of the heart, coronary arteries and bypass grafts when present, with contrast, including 3D postprocessing. Only one of 75572 to 75574 is reported per encounter.
  • 75580Noninvasive estimate of coronary FFR from augmentative software analysis of a coronary CTA, with physician interpretation and report. See FFR-CT and plaque analysis.
  • 75577Coronary plaque analysis from coronary CTA, effective Jan 1, 2026. See FFR-CT and plaque analysis.

Descriptors summarized from SCCT’s cardiac CT codes page, ACR (75580) and ACC (75577). CPT is a registered trademark of the American Medical Association. Coverage varies by payer.

Coronary CTA reading: common questions

Do you read coronary CTA remotely?

Yes. Glasshaus reads coronary CTA for hospitals, imaging centers and cardiology groups in 38 states. Studies route from your scanner to our reading platform, so there is no PACS or IT build on your side. Routine reads come back within 24 hours.

Do you report with CAD-RADS 2.0?

Yes. Every coronary CTA report includes the CAD-RADS 2.0 stenosis category, plaque burden (P1 to P4) and modifiers, with FFR-CT or CT perfusion results added when they are performed.

Can you overread coronary CTAs our cardiologists already read?

Yes. We review the non-cardiac structures in the scan, including the lungs, mediastinum, aorta and upper abdomen, and report incidental findings with follow-up recommendations.

Which CPT codes apply to coronary CTA?

Coronary CTA is CPT 75574. Stand-alone calcium scoring is 75571. Contrast cardiac CT for structure is 75572, or 75573 for congenital heart disease. FFR-CT is 75580 and AI plaque analysis is 75577. Coverage varies by payer.

Sources: 1 CAD-RADS 2.0, 2022 SCCT/ACC/ACR/NASCI expert consensus (J Cardiovasc Comput Tomogr). 2 2021 AHA/ACC/ASE/CHEST/SAEM/SCCT/SCMR chest pain guideline (SCCT summary). 3 SCCT expert consensus on CT for TAVR planning (JACC: Cardiovascular Imaging). 4 Extracardiac findings on coronary CT angiography: a systematic review (J Cardiovasc Comput Tomogr, 2014).

Need a coronary CTA reader?

Tell us your modalities, states and volume. We’ll reply within one business day with a coverage plan and an onboarding date.

Email Dr. Lorenz

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