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(2026) Hyska | Time-resolved PCCT estimates post-TAVI pressure gradients
In 71 post-TAVI PCCT examinations from 63 patients, time-resolved cardiac PCCT enabled calculation of prosthetic-valve hemodynamics from left-ventricular volumetry and direct valve-orifice planimetry. CT-derived mean and maximum transvalvular gradients correlated strongly with echocardiography (ρ = 0.85 for both), while…
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(2025) Mark | PCCT for Cushing Disease: Lesion localization, intraoperative findings, and outcomes
In 25 consecutive patients with Cushing disease undergoing transsphenoidal surgery, dynamic pituitary PCCT localized corticotroph adenomas substantially more accurately than preoperative MRI: 92% vs 56%, respectively (p = .01). PCCT identified a lesion in 24/25 patients, with only one misleading localization. The gain was…
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(2023) van der Bie | PCCT for TAVR planning and follow-up
This early case series illustrates how UHR PCCT can improve structural heart imaging before and after TAVR, particularly through sharper depiction of the aortic valve, annulus, coronary arteries, prosthetic valve frames, and vascular access routes. UHR acquisition allows 0.2-mm sections, compared with 0.4 mm in the regular…
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(2024) Qin | Improvement of coronary stent visualization using UHR PCCT
In 69 patients with 131 coronary stents, UHR PCCT with 0.2-mm slices significantly improved in-stent lumen visualization and reduced blooming artifacts compared with standard-resolution 0.6-mm reconstruction. Among the evaluated reconstruction kernels, Bv72 provided the best overall performance, improving visualization of…
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(2023) Vattay | VMI energy substantially alters PCCT coronary plaque quantification
In 51 patients with 51 coronary plaques, PCCT VMI energy had a substantial effect on measured plaque attenuation and consequently on quantitative plaque composition when fixed HU thresholds were used. Mean plaque attenuation fell progressively from 723 ± 501 HU at 40 keV to 120 ± 112 HU at 180 keV, while 70-keV VMI most…
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(2026) Tateishi | PCCT depicts a ventricular tachycardia substrate
The case report hase been published by: Tateishi, R, Nishimura, T, Tao, S. et al. Photon-Counting Detector Computed Tomography Depicts a Ventricular Tachycardia Substrate: Periaortic Septal Intramural Late Iodine Enhancement. J Am Coll Cardiol Case Rep. 2026 Apr, 31 (15) . https://doi.org/10.1016/j.jaccas.2026.107250 Check…
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(2024) Hagar | UHR PCCT accurately evaluates coronary stent patency
In 18 patients with 44 coronary stents, ultra-high-resolution (UHR) PCCT angiography achieved high diagnostic accuracy for detecting ≥50% in-stent stenosis compared with invasive coronary angiography (ICA). Both readers identified all 5 stenotic stents, yielding 100% sensitivity. Specificity and overall accuracy were 92.3%…
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(2025) Zhang | UHR PCCT versus 40-keV VMI for abdominal artery visualization
This prospective study compared 0.2-mm ultra-high-resolution (UHR) PCCT with 1-mm standard-resolution 40-keV VMI for abdominal CTA in 94 participants, equally divided between full-dose and low-dose protocols. Standard-resolution 40-keV VMI provided significantly higher SNR and CNR than all UHR reconstructions. UHR…
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(2024) Wang | Low-dose ultra-high-resolution PCCT for visceral artery CTA
Prospective study testing whether low-dose (LD) ultra-high-resolution (UHR) photon-counting CT can preserve diagnostic image quality for visceral artery CTA. The study included 57 patients in the full-dose group and 57 in the low-dose group. Each acquisition was reconstructed two ways: 0.2 mm / Bv48 / QIR 4 and 1 mm / Bv40…
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(2026) Habib Geryes | Pediatric PCCT protocols and radiation exposure
This multicenter retrospective study evaluated 6,464 PCCT examinations in 4,772 pediatric patients across three French institutions and provides practical acquisition/reconstruction protocols across ten body regions. The cohort had a mean age of 7.9 ± 5.5 years (4 days–17.9 years); nearly one-third of examinations involved…
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(2026) Huang | UHR PCCT with low-keV improves preoperative pancreatic cancer assessment
Combining UHR PCCT with low-keV virtual monoenergetic imaging (VMI) improved visualization of pancreatic ductal adenocarcinoma (PDAC), peripancreatic vessels, and fine pancreatic anatomy; the study identified 0.4-mm slices at 45 keV as the best overall reconstruction strategy for preoperative assessment. 40-keV VMI…
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(2026) Tóth | Spectral black-blood PCCT for high-resolution carotid vessel wall imaging
A novel spectral black-blood CT (BBCT) reconstruction used the spectral information from PCCT to suppress intraluminal iodine from a routine single-phase CTA dataset, enabling high-resolution carotid vessel wall imaging without an additional scan, contrast administration, or dedicated acquisition. Compared with…
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(2025) Shami | Clinical PCCT to detect intra-plaque haemorrhage and thrombus in carotid plaques
This proof-of-concept study is described as the first clinical PCCT study to characterize high-risk human carotid plaque features in living patients, using histology from subsequent carotid endarterectomy as the reference. The cohort comprised 10 symptomatic patients. Spectral PCCT could differentiate multiple plaque…
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(2026) Schwartz | Streamlined PCCT myelography protocol for detection of CSF-venous fistulas
A streamlined PCCT myelography protocol enabled whole-spine evaluation at 0.2 × 0.1 mm resolution while limiting scanner time to approximately 15 minutes, making high-resolution CSF leak imaging feasible in a busy clinical setting. In 35 patients with previously inconclusive spine imaging, PCCT definitively identified a…
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(2024) Halfmann | UHR PCCTA improves coronary stenosis assessment and CAD-RADS classification
Access publication Key takeaways UHR PCCTA significantly improved the assessment of calcified coronary stenoses by reducing calcium blooming artifacts, resulting in more accurate stenosis quantification than standard-resolution CCTA. Compared with standard-resolution imaging, UHR PCCTA reclassified 54.4% of patients to a…
