External Carotid Artery Angioplasty Based on Ultrahigh-Resolution Photon-Counting CTA.
Sign Up to like & getrecommendations! Published in 2025 at "JAMA neurology"
DOI: 10.1001/jamaneurol.2025.4404
Abstract: This case report describes a patient with left-sided weakness following transient ischemic attacks who underwent external carotid angioplasty based on findings from ultrahigh-resolution photon-counting computed tomographic angiography (CTA). read more here.
Keywords: ultrahigh resolution; angioplasty based; external carotid; resolution photon ... See more keywords
Targeted K‐Edge Nanoprobes From Praseodymium and Hafnium for Ratiometric Tracking of Dual Biomarkers using Spectral Photon Counting CT (Adv. Sci. 46/2024)
Sign Up to like & getrecommendations! Published in 2024 at "Advanced Science"
DOI: 10.1002/advs.202470285
Abstract: Multicolor X‐ray imaging for Osteoarthritis Tracking A novel pair of metal nanoprobes based on praseodymium (green) and hafnium (red) are designed to specifically target two complementary biomarkers of osteoarthritis (OA) progression. The approach relies on… read more here.
Keywords: targeted edge; edge nanoprobes; spectral photon; photon counting ... See more keywords
Addressing CT metal artifacts using photon-counting detectors and one-step spectral CT image reconstruction.
Sign Up to like & getrecommendations! Published in 2022 at "Medical physics"
DOI: 10.1002/mp.15621
Abstract: PURPOSE The constrained One-Step Spectral CT Image Reconstruction (cOSSCIR) algorithm with a non-convex alternating direction method of multipliers (ADMM) optimizer is proposed for addressing CT metal artifacts caused by beam hardening, noise, and photon starvation.… read more here.
Keywords: cosscir; photon counting; metal artifacts; algorithm ... See more keywords
Coronary atherosclerotic plaque characterization with silicon-based photon-counting computed tomography (CT): A simulation-based feasibility study.
Sign Up to like & getrecommendations! Published in 2024 at "Medical physics"
DOI: 10.1002/mp.17422
Abstract: BACKGROUND Recent photon-counting computed tomography (PCCT) development brings great opportunities for plaque characterization with much-improved spatial resolution and spectral imaging capability. While existing coronary plaque PCCT imaging results are based on CZT- or CdTe-materials detectors,… read more here.
Keywords: plaque characterization; pcct; silicon; study ... See more keywords
Photon counting CT versus energy‐integrating CT: A comparative evaluation of advances in image resolution, noise, and dose efficiency
Sign Up to like & getrecommendations! Published in 2024 at "Medical Physics"
DOI: 10.1002/mp.17591
Abstract: Photon counting computed tomography (PCCT) employs direct and spectrally resolved counting of individual x‐ray quanta, enhancing image quality compared to the standard energy‐integrating CT (EICT). read more here.
Keywords: image; counting versus; energy integrating; photon counting ... See more keywords
Spatial resolution improvements for photon counting detectors using coincidence counting and frequency weighted reconstruction
Sign Up to like & getrecommendations! Published in 2025 at "Medical Physics"
DOI: 10.1002/mp.17664
Abstract: Photon counting X‐ray detectors (PCDs) provide better spatial resolution than energy integrating X‐ray detectors, but even higher resolution is desired in some applications. Certain charge sharing compensation techniques such as coincidence counting preferentially detect photons… read more here.
Keywords: resolution; resolution improvements; spatial resolution; coincidence counting ... See more keywords
Technical performance of dual‐contrast‐agent K‐edge imaging with four energy thresholds on a commercial photon counting detector CT
Sign Up to like & getrecommendations! Published in 2025 at "Medical Physics"
DOI: 10.1002/mp.70063
Abstract: Photon counting detector CT (PCD‐CT) has the potential to sort detected x‐ray photons into more than two energy bins to perform multi‐material decomposition using K‐edge materials without additional mathematical constraints/assumptions. The availability of multiple energy… read more here.
Keywords: energy; counting detector; energy thresholds; contrast agent ... See more keywords
Photon-Counting CT: A Quantum Leap in Diagnostic Imaging?!
Sign Up to like & getrecommendations! Published in 2022 at "Clinical Neuroradiology"
DOI: 10.1007/s00062-022-01145-2
Abstract: When I started my education in neuroradiology almost 30 years ago, there was conventional x-ray, angiography, computed tomography (CT), and magnetic resonance imaging (MRI). Truth be told, I did not expect to see a new… read more here.
Keywords: quantum leap; photon counting; counting quantum; diagnostic imaging ... See more keywords
Photon-Counting CT-Angiography to Assess Intracranial Stents and Flow Diverters in Comparison to Digital Subtraction Angiography
Sign Up to like & getrecommendations! Published in 2025 at "Clinical Neuroradiology"
DOI: 10.1007/s00062-025-01519-2
Abstract: Photon-Counting Detector CT is characterized by enhanced image post-processing capabilities. The diagnostic accuracy of PCD-CT angiography (PCD-CTA) in assessing intracranial stents (ICS) and flow diverters (FD) has yet to be compared with digital subtraction angiography… read more here.
Keywords: stent vessel; flow diverters; angiography; intracranial stents ... See more keywords
Commentary on “In-Stent Restenosis in Peripheral Arterial Disease: Ultra-High-Resolution Photon-Counting Versus Third-Generation Dual-Source Energy-Integrating Detector CT Phantom Study in Seven Different Stent Types” Dachs TM, et al. CVIR 2024
Sign Up to like & getrecommendations! Published in 2024 at "Cardiovascular and Interventional Radiology"
DOI: 10.1007/s00270-024-03929-0
Abstract: Commentary Photon-counting detector (PCD) CT offers multiple advancements over traditional energy-integrating detector (EID) CT, including improved spatial resolution, increased contrast-to-noise ratio, and inherent spectral capabilities. These features have shown promise in enhancing diagnostic accuracy across… read more here.
Keywords: pcd; resolution; detector; ultra high ... See more keywords
Comparison of image quality between spectral photon-counting CT and dual-layer CT for the evaluation of lung nodules: a phantom study
Sign Up to like & getrecommendations! Published in 2021 at "European Radiology"
DOI: 10.1007/s00330-021-08103-5
Abstract: To evaluate the image quality (IQ) of a spectral photon-counting CT (SPCCT) using filtered back projection (FBP) and hybrid iterative reconstruction (IR) algorithms (iDose4), in comparison with a dual-layer CT (DLCT) system, and to choose… read more here.
Keywords: image; lung nodules; lung; photon counting ... See more keywords