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Updated: Feb 3, 2026

Phase Contrast and Differential Interference Contrast DIC Microscopy
Published on: August 6, 2008
Minimizing radiographic contrast administration during coronary angiography using a novel contrast reduction system:
Hitinder S Gurm1, Kreton Mavromatis2, Barry Bertolet3
1Department of Medicine, Division of Cardiovascular Medicine, University of Michigan, Ann Arbor, Michigan.
Insights
The DyeVert™ Plus Contrast Reduction System significantly reduced contrast media volume (CMV) by 40.1% in patients with chronic kidney disease (CKD) undergoing cardiac procedures. This system effectively minimizes CMV while preserving image quality, aiding in kidney protection.
Area of Science:
- Cardiology
- Nephrology
- Medical Devices
Background:
- Current guidelines emphasize minimizing contrast media volume (CMV) in chronic kidney disease (CKD) patients undergoing cardiac procedures.
- The DyeVert™ Plus Contrast Reduction System is an FDA-cleared device designed to reduce CMV during angiography and enable real-time CMV monitoring.
Purpose of the Study:
- To evaluate the contrast media volume (CMV) saved using the DyeVert™ Plus Contrast Reduction System in patients undergoing diagnostic coronary angiogram (CAG) and/or percutaneous coronary intervention (PCI) with manual injections.
Main Methods:
- A multicenter, single-arm, observational study was conducted.
- 114 patients with baseline eGFR 20-60 mL/min/1.73 m² were enrolled.
- The primary endpoint was the percentage of CMV saved; secondary objectives included evaluating adverse events.
Main Results:
- An overall CMV savings of 40.1% (P < 0.0001) was achieved per procedure.
- Mean CMV delivered was 67 ± 51 mL, compared to 112 ± 85 mL attempted.
- Image quality was maintained in all but one case; no DyeVert Plus System-related adverse events were reported.
Conclusions:
- The DyeVert Plus System demonstrates clinically meaningful CMV savings in CKD patients undergoing CAG/PCI.
- The system effectively maintains image quality during these procedures.
- Data suggest the system aids in reducing contrast-induced nephropathy risk.
Objective:
To evaluate contrast media (CM) volume (CMV) saved using the DyeVert™ Plus Contrast Reduction System (DyeVert Plus System, Osprey Medical) in patients undergoing diagnostic coronary angiogram (CAG) and/or percutaneous coronary interventional (PCI) procedures performed with manual injections.
Background:
Current guidelines advocate for monitoring and minimization of the total volume of CM in chronic kidney disease (CKD) patients undergoing invasive cardiac procedures. The DyeVert Plus System is an FDA cleared device designed to reduce CMV delivered during angiography and permit real-time CMV monitoring.
Methods:
We performed a multicenter, single-arm, observational study. Eligible subjects were ≥ 18 years old with baseline estimated glomerular filtration rate (eGFR) 20-60 mL/min/1.73 m2 . The primary endpoint was % CMV saved over the total procedure. A secondary objective was to evaluate adverse events (AEs) related to DyeVert Plus System or to CM use.
Results:
A total of 114 subjects were enrolled at eight centers. Mean age was 72 ± 9 years, 72% were male, and mean body mass index was 29 ± 5. Baseline eGFR was 43 ± 11 mL/min/1.73 m2 . CAG-only was performed in 65% of cases. One hundred and five subjects were evaluable for the primary endpoint. Mean CMV attempted was 112 ± 85 mL (range 22-681) and mean CMV delivered was 67 ± 51 mL (range 12-403), resulting in an overall CMV savings of 40.1 ± 8.8% (95% CI 38.4, 41.8; P < 0.0001) per procedure. Image quality was maintained in all but one case where the system was turned off for one injection. No DyeVert Plus System-related AEs were reported. Acute kidney injury (AKI; defined as serum creatinine rise of >0.3 mg/dL from baseline) was reported in 11 cases with seven occurring in subjects with baseline eGFR < 30 and three AKI events were attributed to CM. AKI rates increased as CMV/eGFR ratios increased.
Conclusions:
These data suggest DyeVert Plus System use in CKD patients undergoing CAG and/or PCI results in clinically meaningful CMV savings while maintaining image quality.
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