Glasshaus Imaging · Cardiac and chest imaging, read remotely
Remote coronary CTA and cardiac MRI reading for hospitals and imaging centers
Your scanner is ready. Your cardiac reader can be too.
Glasshaus Imaging reads coronary CTA, calcium scoring, cardiac MR and chest CT for practices and hospitals that have the scanner but not the cardiac reader. We bring the reading platform, so you don’t build PACS or IT to get started.
- Cleveland Clinic fellowship-trained
- Board-certified (ABR, CBCMR)
- Licensed in 38 states
- Monday to Saturday, 8 AM to 5 PM ET
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 .
The problem we solve: coronary CTA and cardiac MRI with no one to read them
Coronary CTA is now a first-line test for chest pain, and CMS roughly doubled what it pays hospitals for CCTA in 2025. Cardiac MRI is the test for scar, viability, myocarditis and cardiomyopathy, yet only 991 physicians read cardiac MRI for Medicare patients in 2022.4
Many cardiology groups and imaging centers have a cardiac-capable CT or MR scanner, or have added FFR-CT and plaque analysis, and then found no one nearby trained to read coronary CTA or cardiac MRI. The scanner sits idle, or the studies go out to a general reader without the cardiac detail.
Glasshaus fills that gap with a subspecialty reader for both coronary CTA and cardiac MRI, who has read them for years, and with a platform that is already built.
-
Class 1
2021 chest pain guideline
CCTA received Class 1, Level A recommendations for patients without known CAD.1
-
+191%
Medicare cardiac CT, 2013 to 2020
Cardiac CT exams for Medicare patients rose from 38,806 to 112,909.2
-
22%
of rural hospitals offer CCTA
Fewer than half of safety-net hospitals offer it at all.3
Sources: 1 2021 AHA/ACC chest pain guideline (SCCT). 2 Medicare cardiac CT volume (AuntMinnie). 3 Share of 391 U.S. safety-net hospitals offering CCTA, by type; SCCT 2023 study (TCTMD). 4 El Yaman et al., Medicare Part B CMR readers (J Cardiovasc Magn Reson, 2025). TAVR volume: 100,501 procedures at 838 sites in 2023, STS/ACC TVT Registry (Cleveland Clinic); CT as the standard planning test, SCCT expert consensus.
IT-ready from day one
No PACS or IT build
Studies route from your scanner to our reading platform. You don’t buy, host or maintain anything new.
Onboard in days
We set up the connection, your protocols and report templates, and start reading. Hospital credentialing, if you need it, runs in parallel.
Already have a PACS?
We can also read on your PACS and worklist if you prefer.
Reports where you need them
Signed reports return to your team by your usual route, with critical findings called to the ordering clinician.
Secure, HIPAA-compliant connection, with a business associate agreement in place before the first study.
Who we serve
- Cardiology practices with a scanner but no cardiac readerYou run the CT. We read the coronaries and the full chest, so incidental findings are not missed.
- Imaging centersAdd CCTA, calcium scoring and cardiac MR to your menu without hiring a cardiac radiologist.
- Hospitals and health systemsDaytime cardiac coverage, overflow when your readers are at capacity, and surge help for new programs and scanner go-lives.
FFR-CT and AI plaque analysis
Coronary CTA, FFR-CT and plaque analysis in one report
Your site already has HeartFlow FFRct, Keya or Cleerly. What it often lacks is a cardiac radiologist to read the coronary CTA, check the AI output against the images, review the full chest and put it all into one report the cardiologist can act on. That is what Glasshaus does, as a remote cardiac CT reader licensed in 38 states.
One report, not three
CCTA findings with CAD-RADS, FFR-CT values and plaque quantification together, plus any incidental chest findings.
Helps sort cath from medical therapy
For intermediate stenoses, FFR-CT helps show which lesions are likely to limit flow, which supports the decision between invasive angiography and medical management.1
Plaque-based risk management
AI plaque quantification shows how much plaque there is and what kind, which supports prevention and follow-up plans. It now has its own Category I CPT code.2
IT-ready, 24-hour routine reads
No PACS or IT build on your side. Routine studies back within 24 hours, STAT within 1 to 2 hours, Monday to Saturday.
Who it’s for: cardiology practices, imaging centers and hospitals running FFR-CT or AI plaque analysis that need a subspecialty reader for the coronary CTA. FFR-CT and plaque analysis reading: details and FAQ.
Sources: 1 2021 AHA/ACC chest pain guideline, FFR-CT Class 2a for 40% to 90% stenosis (JACC: Cardiovascular Imaging). 2 CPT 75577 for coronary plaque analysis, effective Jan 1, 2026 (ACC).
Cardiac MRI reading
Cardiac MRI, read remotely by a CMR-certified radiologist
Cardiac MR answers questions other tests can’t: scar and viability, myocarditis, cardiomyopathy, infiltrative disease and exact ventricular volumes. Many sites could offer it but have no one trained to read it. Glasshaus reads cardiac MR remotely for hospitals and imaging centers in 38 states, with no IT build on your side.
Use the scanner you already have
If your site has a 1.5T or 3T scanner with a cardiac package but no one to read cardiac MR, we read it remotely so the studies can be ordered.
Access where readers are scarce
A 2025 Medicare study found 991 cardiac MR readers in 2022, and 50.8 million people living more than 50 miles from one.1
Guideline-backed tests
Stress CMR has a Class 1 recommendation for diagnosing ischemia in several chest pain settings,2 and CMR is central to diagnosing suspected myocarditis.3
IT-ready, 24-hour routine reads
No PACS or IT build on your side. Routine studies back within 24 hours, STAT within 1 to 2 hours, Monday to Saturday.
Who it’s for: hospitals, imaging centers and cardiology groups with an MR scanner and no cardiac MR reader, or with more cardiac MR than their readers can cover. Cardiac MRI reading: what we read, codes and FAQ.
Sources: 1 El Yaman et al., access to CMR readers in the U.S., Medicare Part B data (J Cardiovasc Magn Reson, 2025). 2 2021 AHA/ACC/ASE/CHEST/SAEM/SCCT/SCMR chest pain guideline. 3 2024 ACC expert consensus decision pathway on myocarditis (JACC).
What we read
Coronary CTA
Stenosis grading with CAD-RADS, anatomy and plaque assessment, with the full chest reviewed on every study. More on coronary CTA reading.
CCTA overread
Extracardiac review of coronary CTAs read by your cardiologists: lungs, mediastinum, aorta and upper abdomen. More on CCTA overreads.
FFR-CT and plaque AI
We work with the analysis your site already uses, including HeartFlow, Keya and Cleerly, and fold the results into one report. How it works.
Calcium scoring
Coronary artery calcium scoring for risk assessment and prevention programs.
Cardiac MR
Function, viability, cardiomyopathy and myocarditis protocols. More on cardiac MRI reading.
Structural heart CT
TAVR, left atrial appendage and other procedure-planning studies.
Chest CT
Thoracic CT, interstitial lung disease, nodules and low-dose lung screening.
How it works
- 1. Tell us what you scanModalities, states and roughly how many studies a week.
- 2. We connect youWe set up the route from your scanner and agree on protocols and templates. No IT build on your side.
- 3. Credentialing and agreementReading agreement and BAA signed, plus hospital privileges if needed.
- 4. We start readingRoutine studies back within 24 hours, STAT within 1 to 2 hours during reading hours.
Coverage and turnaround
- HoursMonday to Saturday, 8 AM to 5 PM ET.
- RoutineReported within 24 hours.
- STATReported within 1 to 2 hours during reading hours.
- ModelsStanding daytime blocks, overflow, and surge coverage.
Why Glasshaus
- Subspecialty trainedCardiovascular imaging and thoracic intervention fellowship, Cleveland Clinic.
- Board-certifiedAmerican Board of Radiology; Certification Board of Cardiovascular Magnetic Resonance.
- Licensed in 38 statesOne reader for practices and systems across state lines.
- Teacher as well as readerHas taught Level 2 cardiac CT courses for radiologists and cardiologists.
- 24 years of U.S. Air Force serviceIncluding 17 years on active duty.
Questions from hospitals and imaging centers
Who reads our studies?
Giovanni E. Lorenz, DO reads your studies personally. He is a Cleveland Clinic fellowship-trained cardiothoracic radiologist, board-certified by the American Board of Radiology and the Certification Board of Cardiovascular Magnetic Resonance.
How do images reach you?
Studies route from your scanner to our reading platform over a secure, HIPAA-compliant connection. There is no PACS or IT build on your side. If you prefer, we can read on your PACS and worklist instead.
How fast are reports?
Turnaround is measured from when we receive the study. Routine studies are reported within 24 hours and STAT studies within 1 to 2 hours, Monday to Saturday, 8 AM to 5 PM ET.
How are critical results handled?
Critical results are communicated directly to the ordering team by phone, and the call is documented in the report.
Which states do you cover?
Dr. Lorenz is licensed in 38 states. If your hospital needs medical staff privileges, credentialing runs in parallel with setup, so it does not hold up go-live.
Can you help with protocols?
Yes. We help your team set up and tune cardiac CT and cardiac MR protocols and report templates on the scanners you already have.
Do you sign a business associate agreement?
Yes. We sign a HIPAA business associate agreement with every client, in place before the first study.
Have a scanner and no cardiac reader?
Tell us your modalities, states and volume. We’ll reply within one business day with a coverage plan and an onboarding date.
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