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Calcification in LAD with no lumen influence
Comment: This is not a complete case report Examination Protocol Scanner NAEOTOM Alpha Scan area Heart Scan mode QuantumPlus Scan length 134.52 mm Scan direction Cranio-caudal Scan time 3.6 s Tube voltage 120 kV Effective mAs IQ level 70 Dose modulation CARE Dose4D CTDIvol 28.6 mGy DLP 375 mGy*cm Rotation time 0.25 s Pitch…
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The Future of Coronary Stent Assessment: Ultra-High-Resolution Cardiac CT Case Series from MEA
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(2026) De Gori | Single-session PCCT enables combined coronary, carotid, and lung screening
[info callout] A single-session PCCT workflow successfully combined coronary CTA, carotid imaging, lung assessment, and delayed cardiac imaging within one consolidated examination. The protocol integrated UHR coronary PCCTA (0.2 mm) with a high-pitch thoraco-cervical acquisition (0.4 mm), maintaining diagnostic image…
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(2026) Saba | PCCT enables layer-by-layer carotid PVAT profiling
[info callout] PCCT enabled millimeter-scale, layer-specific quantification of carotid perivascular adipose tissue using concentric 1–5 mm annular segmentation. PVAT attenuation decreased progressively with increasing distance from the carotid wall, with significant differences especially between the 1 mm layer and the 3–5…
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ECR 2026: Cardiology - Coronary PCCT angiography in pre-operative risk stratification
In high-risk pre-operative patients, PCD-CCTA can provide actionable, non-invasive coronary assessment and convert “routine ICA referral” into a more precise, patient-tailored strategy. @Lili Száraz, Semmelweis University, Hungary March 5, 2026 at ECR 2026 NAEOTOM CONNECT evening Patient: 80-year-old women hypertension,…
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(2024) Sakai | PCCT improves CAD diagnosis and reduces unnecessary ICA referrals
[info callout] PCCT significantly improved specificity, PPV, and overall diagnostic accuracy for obstructive CAD compared to EID-CT, while maintaining equally high sensitivity and NPV. Fewer patients were referred to invasive coronary angiography after PCCT, but those referred were more likely to undergo revascularization,…
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(2025) Hagar | Spectral UHR PCCT for coronary stent imaging in a dynamic phantom
[info callout] Combined spectral and UHR PCCT improved coronary stent assessment by balancing maximum spatial detail with more stable spectral reconstructions. UHR images provided the best lumen visibility and lowest strut overestimation at 60 bpm, but image quality declined at higher heart rates because of motion…
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(2023) Turrion Gomollon | PCCTA for Endoleak Detection After Endovascular Aortic Repair
[info callout] Biphasic PCCT with virtual noniodine VNI achieved endoleak detection comparable to triphasic CT with true noncontrast imaging after EVAR. Subjective image quality and image noise were similar between true non-contrast (TNC) and VNI, while phantom analysis showed slightly lower objective noise for VNI. Using…
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(2024) van der Bie | UHR dual-source PCCT provides high-quality coronary segment imaging
[info callout] UHR dual-source PCCT delivered at least good image quality in 94% of coronary segments and very good or excellent quality in 85%, despite relatively high heart rates. Image quality for coronary stents was particularly strong, with 92% of stented segments rated excellent. Only limited motion, stack, and metal…
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(2023) Yang | Bv40 optimizes standard-res image quality in high-pitch spectral coronary PCCT
[info callout] Among the tested reconstruction settings, kernel Bv40 provided the best overall balance of sharpness, noise, and CNR for high-pitch spectral coronary PCCT. Increasing kernel sharpness improved vessel sharpness but also increased image noise and reduced CNR, highlighting the trade-off between detail and…
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(2023) Rotkopf | Heart rate variability matters more than HR for FLASH coronary PCCT image quality
[info callout] In FLASH-mode coronary PCCT, heart rate variability, not mean heart rate, was the strongest predictor of reduced diagnostic image quality. Both heart rate and heart rate variability were associated with motion artifacts, but only heart rate variability independently predicted lower image quality. These…
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(2024) Moser | ZeeFree reduces stair-step artifacts in sequential UHR coronary PCCTA
[info callout] The novel ZeeFree reconstruction significantly reduced the frequency and severity of stair-step artifacts in sequential UHR coronary PCCTA. Most coronary segments that were nondiagnostic due to stair-step artifacts on standard reconstruction became diagnostic with ZeeFree, without compromising noise, SNR, or…
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(2024) Mergen | VNCa PCCT improves calcified coronary stenosis quantification in vivo
[info callout] Compared with conventional VMI, VNCa images on spectral PCCT markedly reduced overestimation of calcified coronary stenoses and aligned much more closely with 3D-QCA. Virtual calcium removal was feasible in most lesions, but about 12% of stenoses had to be excluded because of erroneous plaque subtraction.…
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(2023) Hagar | Accuracy of UHR PCCT for detecting coronary artery disease in a high-risk population
[info callout] UHR photon-counting CCTA achieved high diagnostic accuracy for detecting CAD in a high-risk TAVR population, despite severe calcification and prior stent placement. Image quality was excellent overall, with 97.8% of coronary segments rated diagnostic and 79% rated good or excellent. The study suggests that…
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(2022) Mergen | First in-human quantitative plaque characterization with UHR cCCTA
[info callout] Ultra-high-resolution PCCT reconstructions reduced apparent calcified plaque burden and increased visualization of non-calcified plaque components compared with standard reference reconstructions. The combination of 0.2 mm slice thickness and the sharp Bv64 kernel yielded the lowest calcified plaque fraction…
