
Medical Imaging Product Developer

Last week,Dr. Zhang Bin's Team from the Department of Cardiovascular Medicine, Lu'an People's Hospital, Anhui Province, Utilizes RaysightMedAngioQFA System Successfully Completes Comprehensive and Precise "Micro IMR + Macro FFR" Coronary Function Assessment for a Complex Chest Pain Patient, clarifying the direction of diagnosis and treatment, achieving a precise leap from "only looking at stenosis" to "emphasizing both function and morphology".

Case Review: Recurrent Chest Pain, What is the Cause?
Patient Mr. Huang,58 years old, with a history of hypertension and lacunar cerebral infarction, was admitted to the hospital due to "intermittent chest pain for more than 2 months, worsening in the past week."
Director Zhang Bin first performed a coronary arteryCT angiography examination, the results show:
1. Left main coronary artery (LM) and proximal left anterior descending artery (LAD) show patchy hard plaques with mild luminal stenosis.
2. Mid-segment of the circumflex artery (LCX) shows patchy hard plaques with severe luminal stenosis.
The preliminary clinical diagnosis is"Coronary Heart Disease Unstable Angina."
To further clarify the cause, Director Zhang Bin performed coronary angiography on the patient. The results showed that the left anterior descending artery (There is an approximately 60% stenosis in the proximal segment of the LAD, with slower blood flow perfusion (TIMI Grade 2).
Generally, such imaging stenosis may directly guide interventional treatment. However, Director Zhang Bin keenly realized that the patient's symptoms might be related to"Microcirculatory dysfunction" is related.

RaysightMedAngio QFA: ComprehensiveEvaluation,Revealing the Truth
During the surgery, Chief Zhang Bin used RaysightMed.Angio QFA System for Coronary Angiography ImagesFunctional Assessment。In justWithin 10 seconds,RaysightMedAngioQFA willThisRequire additional pressure guidewires and complex operations to obtain separately.FFR and IMR indicators, integrated into a single coronary angiography procedure,AchieveCompleted"Synchronous Assessment of Morphology + Function"
The measurement report shows that the patient's fractional flow reserve (FFR)The FFR value was 0.88, higher than the clinical ischemia threshold of 0.80, indicating that the stenosis did not cause significant flow limitation in the epicardial large vessels.
Microcirculatory Resistance IndexAn IMR value as high as 29.57 (normal reference value ≤25) suggests that the patient has significant coronary microcirculatory dysfunction.

To further clarify the condition of vascular plaques,Director Zhang BinFor the patientIVUS examination further verifies and confirms that the patient has no indication for cardiac intervention.。

Clinical Significance:Precision Decision-Making, Better Prognosis
Based on the comprehensive assessment aboveResultsDirector Zhang Bin made a scientific decision: the patient does not need to undergo intravascular stent implantation but will improve microcirculation function through targeted medication.This decision not only avoided unnecessary device implantation but also brought better long-term prognosis for the patients.
This successful practice highlights RaysightMed.AngioQFA Holds Comprehensive and Precise Unique Value in the Era of Coronary Precision Intervention. RaysightMed is Committed to Empowering Clinics with Innovative Technology. In the Future, We Will Continue to Collaborate with Clinical Experts to Promote the Implementation of Precision Diagnosis and Treatment Concepts, Allowing More Cardiovascular Patients to Benefit from the Precision and Efficiency Brought by Technological Advancements.


RaysightMed CEO Zheng Lingxiao Interprets the New Paradigm of "Macro + Micro" AI Coronary Diagnosis and Treatment at Jinan University

University-Enterprise Collaboration | RaysightMed Partners with the First Affiliated Hospital of Jinan University to Jointly Cultivate Interdisciplinary Talent in Intelligent Healthcare

Comprehensive and Precise, Decision-Based|Zhangzhou People's Hospital Successfully Diagnoses and Treats Occult Coronary Artery Disease with RaysightMed AngioQFA
