Cleerly ISCHEMIA

by Cleerly  · Based in United States → — AI-Powered Precision for Non-Invasive Ischemia Detection
Cardiology Radiology

Contact for details
Regulatory Status Disclosed

Overview

Cleerly ISCHEMIA is a first-of-its-kind, FDA-cleared heart disease evaluation software that leverages artificial intelligence and machine learning to analyze coronary computed tomography angiography (CCTA) scans. It provides a non-invasive, vessel-level assessment of the likelihood of coronary artery ischemia. The software integrates quantitative measures of atherosclerosis (plaque volume and types), stenosis severity, and vascular morphology to determine a Cleerly ISCHEMIA Index (CII) for each analyzable coronary vessel. This index indicates whether ischemia is unlikely or likely present, based on a threshold equivalent to invasive fractional flow reserve (FFR) measures of >0.80 vs. ≤0.80.

Cleerly ISCHEMIA is an add-on software module to Cleerly LABS and is intended as a diagnostic aid for physicians, supporting personalized patient treatment decisions, including the planning of interventional treatments such as stent placement. It generates detailed evaluations and 3D digital models of coronary arteries, presenting quantitative measurements in comprehensive, interactive web-based reports. The analysis is billable under the Category I CPT® Code 75580.

Reviewed by Pouyan Golshani, MD — Interventional Radiologist

Key Features

  • AI-enabled CCTA analysis
  • Non-invasive fractional flow reserve (FFR) estimation
  • Vessel-level ischemia likelihood determination
  • Coronary plaque characterization (volume, type, location)
  • Stenosis severity assessment
  • 3D digital models of coronary arteries
  • Comprehensive interactive web-based reports
  • Integration with PowerScribe via API
  • Supports Category I CPTu00ae Code 75580 billing
  • Validated against invasive FFR gold standard

Use Cases

  • Personalized patient treatment planning for CAD
  • Guiding interventional treatments (e.g., stent placement)
  • Assessing overall heart health and disease progression
  • Identifying at-risk patients for early intervention
  • Supporting clinical decision-making for revascularization
  • Reducing unnecessary invasive and non-invasive testing

What Physicians Need to Know

Cardiac CT Analysis
Cleerly ISCHEMIA is an AI-guided quantitative coronary CT angiography (AI-QCT) technology that analyzes CCTA images to assess atherosclerosis, stenosis, and ischemia. It generates a 3D model of the patient's coronary arteries, identifying lumen, vessel walls, and quantifying plaque and stenosis.
Coronary Artery Assessment
The tool provides a 3-in-1 approach for the assessment of atherosclerosis, stenosis, and ischemia from a single non-invasive CCTA test. It quantifies plaque volume, composition, length, and location, and evaluates stenosis severity in both 2D and 3D. It determines the likely presence or absence of coronary vessel ischemia at a per-vessel level, with thresholds equivalent to invasive FFR u22640.80.
Heart Failure Risk Prediction
Cleerly ISCHEMIA provides prognostic utility for major adverse cardiovascular events (MACE). Studies have shown that a positive Cleerly AI-QCT ISCHEMIA finding was associated with an approximately 7-fold increase of adverse cardiovascular events during an 8-year follow-up. It was also found to be the only non-invasive ischemia test prognostic of future MACE events in the PACIFIC study.
AHA/ACC Guideline Alignment
The ischemia prediction threshold (FFR u22640.80) is chosen in accordance with American Heart Association / American College of Cardiology professional societal guidelines for guiding clinical decision-making for coronary revascularization. Cleerly's approach also aligns with guidelines emphasizing the importance of plaque, particularly high-risk plaque, as a driver of MACE.
Physician Tip

Cleerly ISCHEMIA offers a comprehensive, non-invasive assessment of coronary artery disease (CAD) by integrating atherosclerosis, stenosis, and ischemia analysis from a single CCTA. Physicians can leverage its AI-driven insights for personalized treatment planning, including guiding revascularization and medical therapy decisions. The detailed, lesion-by-lesion mapping and prognostic utility for MACE can enhance diagnostic certainty and potentially reduce the need for additional invasive or non-invasive testing. It provides actionable information to assess a patient's heart health and support clinical decision-making.

Cleerly ISCHEMIA functions as an add-on software module to Cleerly LABS. It integrates with reporting systems like PowerScribe via API to generate structured CCTA findings directly within the reporting environment, aiming to reduce manual transcription and improve workflows. A partnership with Viz.ai will also integrate Cleerly's advanced cardiovascular diagnostic tools into existing Viz.ai One platform workflows.

Details

Category Cardiology AI, Radiology & Imaging AI
Pricing Contact for details
  • Varies by provider; consult with doctor/imaging center
  • Cleerly Proxy is provided without additional charge to clients of the Cleerly service
DeploymentWeb-based platform; data transfer via Cleerly Proxy (VPN or virtual appliance)
Compliance
BAA AvailableUnknown AI-estimated
HIPAA CompliantUnknown AI-estimated
FDA Status 1 AI-estimated

Cleerly ISCHEMIA received U.S. Food and Drug Administration (FDA) 510(k) medical device clearance (K231335) on September 8, 2023. It is an automated machine learning-based decision support tool, intended as a diagnostic aid for patients undergoing coronary computed tomography angiography (CCTA) analysis using Cleerly LABS software.

Integrations
EHR Not specified
Specialties Cardiology, Radiology

What the Web Says

Cleerly ISCHEMIA is a diagnostic software that uses AI to analyze CT angiograms for coronary artery disease, focusing on identifying ischemia-causing plaque. It aims to provide more precise and personalized diagnoses than traditional methods, potentially reducing the need for invasive procedures and improving patient outcomes.

Overall: Positive

Strengths

  • Non-invasive assessment of coronary artery disease and ischemia.
  • Provides detailed quantification of plaque volume and characteristics.
  • Potential to reduce unnecessary invasive procedures (e.g., catheterization).
  • Aids in personalized treatment planning and risk stratification.
  • FDA-cleared and supported by clinical studies.
  • May improve diagnostic accuracy compared to visual assessment alone.

Limitations

  • Cost and reimbursement challenges may limit adoption.
  • Requires specialized CT angiography equipment and trained personnel.
  • Integration into existing clinical workflows can be complex.
  • Relatively new technology, long-term impact still being studied.
  • Potential for over-diagnosis or incidental findings.
  • Availability may be limited in certain healthcare settings.

Based on reviews from: Cleerly Health Website, Physician Reviews (various medical journals/articles), Healthcare IT Publications, Tech Review Sites (general medical tech), Reddit (medical professional subreddits), G2 (if applicable for medical software), Capterra (if applicable for medical software)

Last updated: 2026-07-18

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Press & Coverage

AuntMinnie
Cleerly touts Ischemia tech clinical results
Cleerly highlighted study results for its AI-QCT Ischemia technology, published in the Journal of the American College of Cardiology: Cardiovascular Imaging, showing a nearly sevenfold increase in adverse cardiovascular events for patients with abnormal findings. The company also announced that its Cleerly Ischemia software device is billable using the new Category I CPT code 75580.
2024-03
Clinical Trials Arena
Cleerly touts new data for AI cardiovascular software
Cleerly announced positive data from two studies (CREDENCE and PACIFIC-1) on its AI-QCT ISCHEMIA software, published in the Journal of the American College of Cardiology: Cardiovascular Imaging. The software demonstrated strong diagnostic accuracy and outperformed other methods in assessing coronary ischemia.
2024-03
BioSpace
Cleerlyu00ae ISCHEMIAu2122 Demonstrates Robust Diagnostic Accuracy and Prognostic Utility in Analyses from Large Scale Clinical Trials
Cleerly shared findings from a study published in the Journal of the American College of Cardiology: Cardiovascular Imaging, validating its AI-QCT ISCHEMIA technology for diagnostic accuracy and prognostic risk stratification. The company also noted that Cleerly ISCHEMIA is billable using the new Category I CPTu00ae code 75580.
2024-03
Business Wire
Cleerlyu00ae ISCHEMIAu2122 Software Device Billable With AMA Category I CPTu00ae Code for Noninvasive Estimates of Fractional Flow Reserve
Cleerly announced that its FDA-cleared Cleerly ISCHEMIA software device can be billed using the new Category I CPTu00ae code 75580, effective January 1, 2024. This code is for a complementary augmented intelligence tool for noninvasive estimates of fractional flow reserve (FFR).
2024-02
BioSpace
Cleerlyu00ae Launches Cleerlyu00ae ISCHEMIAu2122 Solution for Heart Disease Analysis
Cleerly announced the launch of Cleerly ISCHEMIA, an FDA 510(k) cleared automated machine learning-based decision support tool. It is intended as a diagnostic aid for patients undergoing coronary computed tomography angiography (CCTA) analysis using Cleerly Labs software.
2024-01
American Heart Association Journals
Prognostic Value of a Coronary Computed Tomography Angiographyu2013Derived Ischemia Algorithm: Comparison Against Hybrid Coronary Computed Tomography Angiography/Positron Emission Tomography Imaging
This peer-reviewed article discusses the prognostic value of an AI-based CCTA-derived ischemia algorithm (Cleerly ISCHEMIA) compared to hybrid CCTA/PET imaging. The study found moderate-to-substantial agreement between the methods and that an abnormal AI-QCTischemia result was independently predictive of adverse outcomes.
2025-11
accessdata.fda.gov
K231335 - 510(k) Premarket Notification
This FDA 510(k) Premarket Notification document details the clearance of Cleerly ISCHEMIA as an add-on software module to Cleerly Labs. It is an automated machine learning-based decision support tool intended as a diagnostic aid for detecting likely ischemia.
2023-09
Diagnostic and Interventional Cardiology
Providing Clarity into CAD
Cleerly uses FDA-cleared machine learning algorithms to non-invasively measure plaque, stenosis, and the likelihood of ischemia using CCTA studies. Cleerly ISCHEMIA provides lesion-by-lesion mapping of CAD, offering actionable information to physicians for personalized patient treatment.
2026-03

Videos

Product demos, reviews, and walkthroughs for Cleerly ISCHEMIA.

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Frequently Asked Questions

Yes, Cleerly ISCHEMIA received U.S. Food and Drug Administration (FDA) 510(k) medical device clearance on January 9, 2024. It is classified as an automated machine learning-based decision support tool, intended as a diagnostic aid for patients undergoing coronary computed tomography angiography (CCTA) analysis using Cleerly LABS software.
Cleerly ISCHEMIA is a cloud-based solution that integrates into existing hospital and practice workflows, analyzing data from standard CCTA scans. It provides a Cleerly ISCHEMIA Index (CII) and comprehensive reports, offering lesion-by-lesion mapping of coronary artery disease to aid in personalized treatment planning.
In clinical trials like CREDENCE and PACIFIC, Cleerly ISCHEMIA demonstrated higher diagnostic accuracy and prognostic utility compared to FFRCT and traditional stress testing methods such as SPECT and PET. It aims to reduce the need for additional testing and invasive angiography by providing a comprehensive assessment of atherosclerosis, stenosis, and ischemia from a single non-invasive CCTA.
Cleerly ISCHEMIA is billable using the new Category I CPTu00ae code 75580, effective January 1, 2024. This code covers the noninvasive estimate of coronary fractional flow reserve derived from augmentative software analysis of CCTA data. While Medicare coverage policies align with Local Coverage Determinations (LCDs), final coverage and payment amounts will vary by individual commercial payer.
Cleerly ISCHEMIA is a diagnostic aid, and patient management decisions should not be made solely on its results; it is not intended to replace the skill and judgment of a qualified medical practitioner. Limitations for Medicare coverage include use for screening, contraindications to CCTA, recent myocardial infarction, unstable coronary symptoms, or in conjunction with invasive catheterization or normal CCTA results.
Cleerly Labs, which includes Cleerly ISCHEMIA, has implemented security features for device and data protection, adhering to FDA guidance on cybersecurity in medical devices. Cleerly also partners with healthcare-focused cloud and compliance providers like ClearDATA to ensure secure and compliant infrastructure for patient health data.

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Suggest an Edit → | Last Verified: 2026-04-18 | First Added: 2026-04-18

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