ArticleDiagnostics (Basel, Switzerland)2022
Virtual Non-Contrast Reconstructions of Photon-Counting Detector CT Angiography Datasets as Substitutes for True Non-Contrast Acquisitions in Patients after EVAR-Performance of a Novel Calcium-Preserving Reconstruction Algorithm.
Article in Diagnostics (Basel, Switzerland), 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.
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20 citing papers in PubMed, 48 citations in OpenAlex.
- Spectral Computed Tomography Angiography in Visceral Artery Aneurysms: Technical Principles and Clinical Applications.Tomography (Ann Arbor, Mich.) · 2026Review
- Virtual noncontrast images of adrenal lesions: a photon-counting CT prospective study.European radiology experimental · 2025Article
- Photon counting detector CT-derived virtual non-contrast images of the liver: comparison of conventional and liver-specific algorithms across arterial and portal venous phase scans.BMC medical imaging · 2025Article
- Impact of BMI, heart rhythm, and heart rate on photon-counting detector virtual coronary calcium scoring.The international journal of cardiovascular imaging · 2025Article
- Spectral Differentiation of Hyperdense Non-Vascular and Vascular Renal Lesions Without Solid Components in Contrast-Enhanced Photon-Counting Detector CT Scans-A Pilot Study.Diagnostics (Basel, Switzerland) · 2025Article
- Synthetic hematocrit from virtual non-contrast images for myocardial extracellular volume evaluation with photon-counting detector CT.European radiology · 2024Article
- Radiomics Feature Stability in True and Virtual Non-Contrast Reconstructions from Cardiac Photon-Counting Detector CT Datasets.Diagnostics (Basel, Switzerland) · 2024Article
- Dual-Energy and Photon-Counting Computed Tomography in Vascular Applications-Technical Background and Post-Processing Techniques.Diagnostics (Basel, Switzerland) · 2024Review
- CT radiomic features reproducibility of virtual non-contrast series derived from photon-counting CCTA datasets using a novel calcium-preserving reconstruction algorithm compared with standard non-contrast series: focusing on epicardial adipose tissue.The international journal of cardiovascular imaging · 2024Article
- Virtual non-contrast series of photon-counting detector computed tomography angiography for aortic valve calcium scoring.The international journal of cardiovascular imaging · 2024Article
- Heart rate sensitivity of virtual non-contrast calcium scores derived from photon counting detector CT data: a phantom study.La Radiologia medica · 2024Article
- Advantages of Photon-Counting Detector CT in Aortic Imaging.Tomography (Ann Arbor, Mich.) · 2023Review
- Virtual unenhanced images derived from dual-energy computed tomography for assessing bone mineral density and detecting osteoporosis.Quantitative imaging in medicine and surgery · 2023Article
- Clinical Applications of Photon-counting CT: A Review of Pioneer Studies and a Glimpse into the Future.Radiology · 2023Review
- Consistency of spectral results in cardiac dual-source photon-counting CT.Scientific reports · 2023Article
- Quality of virtual-non-contrast phases derived from arterial and delayed phases of fast-kVp switching dual-energy CT in patients after endovascular aortic repair.The international journal of cardiovascular imaging · 2023Article
- Standardized assessment of vascular reconstruction kernels in photon-counting CT angiographies of the leg using a continuous extracorporeal perfusion model.Scientific reports · 2023Article
- [Update: Small bowel diseases in computed tomography and magnetic resonance imaging].Radiologie (Heidelberg, Germany) · 2023Review
- Stent imaging on a clinical dual-source photon-counting detector CT system-impact of luminal attenuation and sharp kernels on lumen visibility.European radiology · 2023Article
- Assessment of epicardial adipose tissue on virtual non-contrast images derived from photon-counting detector coronary CTA datasets.European radiology · 2023Article
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Authors and funding
11 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The purpose of this study was to evaluate virtual-non contrast reconstructions of Photon-Counting Detector (PCD) CT-angiography datasets using a novel calcium-preserving algorithm (VNCPC) vs. the standard algorithm (VNCConv) for their potential to replace unenhanced acquisitions (TNC) in patients after endovascular aneurysm repair (EVAR). 20 EVAR patients who had undergone CTA (unenhanced and arterial phase) on a novel PCD-CT were included. VNCConv- and VNCPC-series were derived from CTA-datasets and intraluminal signal and noise compared. Three readers evaluated image quality, contrast removal, and removal of calcifications/stent parts and assessed all VNC-series for their suitability to replace TNC-series. Image noise was higher in VNC- than in TNC-series (18.6 ± 5.3 HU, 16.7 ± 7.1 HU, and 14.9 ± 7.1 HU for VNCConv-, VNCPC-, and TNC-series, p = 0.006). Subjective image quality was substantially higher in VNCPC- than VNCConv-series (4.2 ± 0.9 vs. 2.5 ± 0.6; p < 0.001). Aortic contrast removal was complete in all VNC-series. Unlike in VNCConv-reconstructions, only minuscule parts of stents or calcifications were erroneously subtracted in VNCPC-reconstructions. Readers considered 95% of VNCPC-series fully or mostly suited to replace TNC-series; for VNCConv-reconstructions, however, only 75% were considered mostly (and none fully) suited for TNC-replacement. VNCPC-reconstructions of PCD-CT-angiography datasets have excellent image quality with complete contrast removal and only minimal erroneous subtractions of stent parts/calcifications. They could replace TNC-series in almost all cases.
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