Journal: La Radiologia Medica

Article Title: Ultrafast non-ECG-gated cardiac spectral CT scanning for myocardial late iodine enhancement assessment: a feasibility study

doi: 10.1007/s11547-025-02114-8

Figure Lengend Snippet: Study enrollment. Between February 2023 and November 2023, a total of 68 patients underwent coronary computed tomography angiography (CCTA) at IRCCS Azienda Ospedaliero–Universitaria di Bologna. None of the patients were excluded based on the predefined exclusion criteria. Of these, 51 patients underwent CCTA with the Spectral CT 7500 system, while 17 patients were scanned using the Brilliance iCT SP system. CCTA = Coronary Computed Tomography Angiography; LIE-CT = Late Iodine Enhancement Computed Tomography; CT = Computed Tomography

Article Snippet: This study pioneers the use of an ultrafast, non-ECG-gated LIE-CT scan using the Philips Spectral CT 7500 scanner.

Techniques: Computed Tomography

Journal: La Radiologia Medica

Article Title: Ultrafast non-ECG-gated cardiac spectral CT scanning for myocardial late iodine enhancement assessment: a feasibility study

doi: 10.1007/s11547-025-02114-8

Figure Lengend Snippet: Spectral CT 7500 images highlight a mid-interventricular septum area of subendocardial-intramyocardial LIE due to ischemic myocardial damage (red and white arrows). On the ECV spectral map (panel c), two ROIs placed one on the LIE area and one on healthy myocardium showed ECV values of 62% ± 8% and 29% ± 6%, respectively. Panel a, conventional LIE-CT image on axial plane acquired with Spectral CT 7500. Panel b, Iodine-no-water spectral map on two chambers plane. Panel c, ECV spectral map on axial plane. Panel d, Iodine-no-water spectral map on axial plane. CT = Computed Tomography; LIE = Late Iodine Enhancement; ECV = extracellular volume; ROI = Region of Interest; LIE-CT = Late Iodine Enhancement Computed Tomography

Article Snippet: This study pioneers the use of an ultrafast, non-ECG-gated LIE-CT scan using the Philips Spectral CT 7500 scanner.

Techniques: Computed Tomography

Journal: La Radiologia Medica

Article Title: Ultrafast non-ECG-gated cardiac spectral CT scanning for myocardial late iodine enhancement assessment: a feasibility study

doi: 10.1007/s11547-025-02114-8

Figure Lengend Snippet: Comparison of a conventional LIE-CT image acquired with Brilliance iCT SP (panel a) and a conventional LIE-CT image acquired with Spectral CT 7500 (panel b). Even from a qualitative assessment, the lower noise level in panel b is evident. In panel a, a subendocardial LIE area is faintly visible on the lateral wall, which will become clearer after adjusting window level and width. In panel b, anterior and inferior junctional LIE areas are faintly visible in a patient with hypertrophic cardiomyopathy, better highlighted by Iodine-no-water spectral maps (see Fig. ). LIE-CT = Late Iodine Enhancement Computed Tomography; CT = Computed Tomography; LIE = Late Iodine Enhancement

Article Snippet: This study pioneers the use of an ultrafast, non-ECG-gated LIE-CT scan using the Philips Spectral CT 7500 scanner.

Techniques: Comparison, Computed Tomography

Journal: La Radiologia Medica

Article Title: Ultrafast non-ECG-gated cardiac spectral CT scanning for myocardial late iodine enhancement assessment: a feasibility study

doi: 10.1007/s11547-025-02114-8

Figure Lengend Snippet: LIE-CT images acquired with Spectral CT 7500, and LGE-CMR images of a case of asymmetric hypertrophic cardiomyopathy show anterior and inferior junctional areas of late enhancement (white and red arrows). Late enhancement indicates myocardial damage with fibrotic evolution and has a negative prognostic significance. Panel a, conventional LIE-CT image acquired with Spectral CT 7500. Panel b, Iodine-no-water spectral map. Panel c, ECV spectral map. Panel d, LGE-CMR on PSIR image. LIE-CT = Late Iodine Enhancement Computed Tomography; CT = Computed Tomography; LGE-CMR = Late Gadolinium Enhancement Cardiac Magnetic Resonance; ECV = extracellular volume; PSIR = Phase-Sensitive Inversion Recovery

Article Snippet: This study pioneers the use of an ultrafast, non-ECG-gated LIE-CT scan using the Philips Spectral CT 7500 scanner.

Techniques: Computed Tomography

Journal: La Radiologia Medica

Article Title: Ultrafast non-ECG-gated cardiac spectral CT scanning for myocardial late iodine enhancement assessment: a feasibility study

doi: 10.1007/s11547-025-02114-8

Figure Lengend Snippet: Spectral CT 7500 images of a case of dilated cardiomyopathy with ring-like pattern late enhancement, better appreciated on LIE-CT images than on LGE-CMR images. Panel a, conventional LIE-CT image acquired with Spectral CT 7500. Panel b, Iodine-no-water spectral map. Panel c, ECV spectral map. Panel d, LGE-CMR on PSIR image. CT = Computed Tomography; LIE-CT = Late Iodine Enhancement Computed Tomography; LGE-CMR = Late Gadolinium Enhancement Cardiac Magnetic Resonance; ECV = extracellular volume; PSIR = Phase-Sensitive Inversion Recovery

Article Snippet: This study pioneers the use of an ultrafast, non-ECG-gated LIE-CT scan using the Philips Spectral CT 7500 scanner.

Techniques: Computed Tomography

Journal: medRxiv

Article Title: Explainable Advanced Electrocardiography Heart Age Shows Good Reproducibility in Healthy Young Adults

doi: 10.64898/2026.03.24.26349147

Figure Lengend Snippet: Within- and between-session coefficient of variations (%) for A-ECG heart age and the individual parameters used in the A-ECG heart age multivariable regression model. Data are displayed as boxplots, where the horizontal line represents the median, the box represents the interquartile range, whiskers extend to the most extreme values within 1.5 times the interquartile range, and points beyond the whiskers represent individual outliers. The red dotted line indicates a CV of 10%. For the ln-transformed intradipolar ratio of T-wave complexity from the Frank XYZ leads [(T Eigenvalue2 × T Eigenvalue3)/(T Eigenvalue1) ] following singular value decomposition, CV was calculated as 100 × SD/|mean| to ensure a positive magnitude, as ln-transformed values are negative.

Article Snippet: During each session, five resting 12-lead ECGs were recorded using a clinical ECG vendor (PageWriter TC50, Philips Healthcare, Australia) using standard electrode placement .

Techniques: Transformation Assay