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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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(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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(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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(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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(2022) Lennartz | Virtual unenhanced images show limitations for adrenal adenoma characterization
PCCT-derived virtual unenhanced (VUE) images showed no significant difference in mean attenuation compared with true unenhanced (TUE) images for adrenal adenomas (9.2 ± 8.6 HU vs 7.3 ± 8.4 HU; P = .07). Despite similar mean values, individual VUE measurements showed both over- and underestimation, resulting in 10 of 36…
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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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(2024) Haag | PURE Calcium PCCT may replace true noncontrast calcium scoring
In 170 patients, coronary artery calcium scores derived from PCCT PureCalcium virtual noncontrast images showed excellent correlation with true noncontrast (TNC) calcium scoring (ICC 0.98). Median Agatston scores were not significantly different: 4.8 vs 2.7, respectively (p = 0.99). High correlation did not translate into…
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(2024) Gnasso | Optimized PCCT reconstruction improves myocardial ECV accuracy
In 27 patients undergoing same-day PCCT and cardiac MRI, myocardial extracellular volume (ECV) measurements remained robust across a wide range of reconstruction settings, but reconstruction choices meaningfully affected agreement with MRI. The greatest improvement came from combining thin slices with low-keV VMI, rather…
