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PCCT for coronary assessment and functional imaging in Takotsubo cardiomyopathy
@Bálint Szilveszter, Borbála Vattay, Péter Csongor, @Milan Vecsey-Nagy Városmajor Heart and Vascular Centre, Cardiac CT Working Group, Budapest, Hungary September 29, 2026 https://siemens-healthineers.bynder.com/asset/a85e1bdc-bf2b-4a4d-94a0-dc890f0a7651/CT-NAEOTOM-CONNECT-CaseReport-Takutsobu-2-VIDEO-2026.mp4…
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PCCT for myocardial tissue characterization in acute myocarditis: comparison with CMR
Ferenc Imre Suhai, Barbara Sipos, Milán Vecsey-Nagy, Bálint Szilveszter Városmajor Heart and Vascular Centre, Cardiac CT Working Group, Budapest, Hungary September 29, 2026 https://siemens-healthineers.bynder.com/asset/2a67d11b-415e-4e25-a74a-42d82ff7a4d5/CT-NAEOTOM-CONNECT-CaseReport-BalintMyocard-1-VIDEO-2026.mp4…
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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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(2026) Pali | PCCT iodine maps quantify when post-thrombectomy staining becomes visible
In 12 patients after mechanical thrombectomy, 54 ASPECTS regions ultimately developed infarction; 40/54 (74.1%) showed hyperattenuation on PCCT iodine maps, but only 15/40 (37.5%) were visually hyperattenuating on conventional brain-window images. Thus, iodine accumulation was frequently measurable before becoming visually…
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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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(2026) Limantoro | Ultra-low dose pediatric chest PCCT approaching chest radiograph doses
In this feasibility study, an ultra-low-dose pediatric chest PCCT protocol was optimized to Sn100 kVp, 2 mAs, pitch 1.5, achieving a phantom effective dose of 14 µSv. In clinical use, the median total effective dose was 11.6 µSv, close to the 8.2 µSv median dose of a single chest radiograph. The protocol was applied in 24…
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(2025) Opitz | First assessment of photon-counting CT for virtual bronchoscopic navigation
In 40 patients (20 PCCT vs 20 BMI- and sex-matched EID-CT), PCCT successfully provided the high-resolution datasets required for virtual bronchoscopic navigation (VBN) and could be transferred into the navigation system for procedural planning. PCCT achieved an approximately 5–6× radiation-dose reduction: CTDIvol 1.5 vs…
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(2024) Dettmer | Chest X-ray–dose PCCT changes diagnosis in suspected pneumonia
In 27 adults with suspected respiratory infection, an ultra-low-dose PCCT chest protocol achieved a mean effective dose of 0.11 ± 0.04 mSv, essentially matching the German reference dose for a two-view chest radiograph. Despite this very low exposure, PCCT provided substantially more diagnostic information than…
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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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(2023) Turrion Gomollon | VNI PCCT may replace true noncontrast after EVAR
In 110 patients undergoing EVAR surveillance, including 41 endoleaks, the authors compared conventional triphasic PCCT (true noncontrast + arterial + venous) with a biphasic strategy in which virtual noniodine (VNI) images reconstructed from the venous phase replaced the true noncontrast acquisition. Endoleak detection was…
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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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(2026) Kabakus | Is nitroglycerin still nevessary for CCTA in the era of PCCT?
In 124 patients with CCTA and invasive coronary angiography (ICA) within 30 days, diagnostic performance of PCCT CCTA was similar with and without sublingual nitroglycerin. Per-patient sensitivity was 90.3% vs 90.9%, and NPV was 86.4% vs 88.9%, with no significant differences between groups. The non-nitroglycerin group was…
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(2026) McCollough & Yu | CT Radiation Dose Reduction With Preserved Diagnostic Performance
Access publication Key message Over roughly 25 years, combined advances in CT hardware, acquisition, and reconstruction have enabled approximately 2- to 10-fold radiation-dose reductions, but dose reduction should be judged against preserved diagnostic performance, not merely lower image noise. Practical implication: Dose…
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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) Schwartz | Mixed-bolus low-keV PCCT improves CTPA robustness
In 150 patients undergoing PCCT pulmonary angiography, the investigators compared three contrast-injection strategies while reconstructing images at 40, 55, and 67 keV. Pulmonary arterial enhancement increased progressively at lower energies, with 40 keV providing the strongest vascular enhancement and highest reader…
