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Diagnostics
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Novelty and Challenge in CT Angiography
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Novelty and Challenge in CT Angiography

A special issue of Diagnostics (ISSN 2075-4418). This special issue belongs to the section "Medical Imaging and Theranostics".

Deadline for manuscript submissions: 28 February 2025 | Viewed by 2785

Special Issue Editor

Dr. Lung-Kwang Pan

E-Mail Website
Guest Editor
Department of Medical Imaging and Radiological Science, Central Taiwan University of Science and Technology, Takun, Taichung 406, Taiwan
Interests: radiological science; instrumental optimization; biokinetic model
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

This "Novelty and Challenge in CT Angiography" Special Issue aims to assemble papers focused on the practical application of CT angiography to help clinical diagnosis, potential artifact identification, and imaging quality control. We strongly encourage CT angiography studies on clinical diagnostic techniques, syndrome judgment, the spatial resolution of SPECT, the optimal protocol of CT scanning, or any other approaches broadening the application of CT angiography to explore the novelties or challenges in CT angiography. Papers involving the processing or postprocessing of digital images obtained via CT angiography and the respective results of specific studies or practical surveys are welcome. Since CT angiography has unique features in assisting routine diagnosis, we ask authors to address its seamless and comprehensive implementation in clinical surveys. Multiple presumptions, simplifications, and limitations to be considered to fulfill future CT angiography needs are also relevant. Improving diagnostic accuracy and reproducibility from various perspectives is the main goal to be discussed in this Special Issue.

Dr. Lung-Kwang Pan
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Diagnostics is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

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Published Papers (3 papers)

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Research

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14 pages, 2903 KiB  
Article
Impact of Structured Reporting of Lower Extremity CT Angiography on Report Quality and Workflow Efficiency
by Claudius Melzig, Victoria Mayer, Martin Moll, Omar Naas, Sibylle Hartmann, Thuy Duong Do, Hans-Ulrich Kauczor and Fabian Rengier
Diagnostics 2024, 14(17), 1968; https://doi.org/10.3390/diagnostics14171968 - 6 Sep 2024
Viewed by 480
Abstract
We assessed the effects of structured reporting (SR) of lower extremity CT angiography (CTA) on report quality and workflow efficiency compared with conventional reports (CR). Surveys were conducted at an academic radiology department before and after the introduction of an SR template. Participants [...] Read more.
We assessed the effects of structured reporting (SR) of lower extremity CT angiography (CTA) on report quality and workflow efficiency compared with conventional reports (CR). Surveys were conducted at an academic radiology department before and after the introduction of an SR template. Participants (n = 39, 21) rated report quality and report creation effort (1: very dissatisfied/low to 10: very satisfied/high) and whether SR represents an improvement over CR (1: completely disagree to 5: completely agree). Four residents and two supervising radiologists created both CR and SR of 40 CTA examinations. Report creation time was measured and the factual accuracy of residents’ reports was judged. Report completeness (median 8.0 vs. 7.0, p = 0.016) and clinical usefulness (7.0 vs. 4.0, p = 0.029) were rated higher for SR. Supervising radiologists found report clarity improved by SR (8.0 vs. 4.5, p = 0.029). Report creation effort was unchanged (7.0 vs. 6.0, p > 0.05). SR was considered an improvement over CR (median 4.0, IQR,3.0–5.0). Report supervision was shortened by SR (6.2 ± 2.0 min vs. 10.6 ± 3.5 min, p < 0.001) but total time for report creation remained unchanged (36.6 ± 12.8 min vs. 36.4 ± 11.0 min, p > 0.05). Factual accuracy of residents’ SR was deemed higher (8.0/9.5 vs. 7.0/7.0, p = 0.006/ < 0.001). In conclusion, SR has the potential to improve report quality and workflow efficiency for lower extremity CTA. Full article
(This article belongs to the Special Issue Novelty and Challenge in CT Angiography)
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13 pages, 4912 KiB  
Article
Inverse Problem Algorithm-Based Time-Resolved Imaging of Head and Neck Computed Tomography Angiography Contrast Kinetics with Clinical Testification
by Chih-Sheng Lin, Bing-Ru Peng, Hong-Bing Ma, Ke-Lin Chen, Tsung-Han Lin, Lung-Kwang Pan and Ya-Hui Lin
Diagnostics 2023, 13(21), 3354; https://doi.org/10.3390/diagnostics13213354 - 31 Oct 2023
Cited by 1 | Viewed by 1022
Abstract
This study mitigated the challenge of head and neck CT angiography by IPA-based time-resolved imaging of contrast kinetics. To this end, 627 cerebral hemorrhage patients with dizziness, brain aneurysm, stroke, or hemorrhagic stroke diagnosis were randomly categorized into three groups, namely, the original [...] Read more.
This study mitigated the challenge of head and neck CT angiography by IPA-based time-resolved imaging of contrast kinetics. To this end, 627 cerebral hemorrhage patients with dizziness, brain aneurysm, stroke, or hemorrhagic stroke diagnosis were randomly categorized into three groups, namely, the original dataset (450), verification group (112), and in vivo testified group (65), in the Affiliated BenQ Hospital of Nanjing Medical University. In the first stage, seven risk factors were assigned: age, CTA tube voltage, body surface area, heart rate per minute, cardiac output blood per minute, the actual injected amount of contrast media, and CTA delayed trigger timing. The expectation value of the semi-empirical formula was the CTA number of the patient’s left artery (LA). Accordingly, 29 items of the first-order nonlinear equation were calculated via the inverse problem analysis (IPA) technique run in the STATISTICA 7.0 program, yielding a loss function and variance of 3.1837 and 0.8892, respectively. A dimensionless AT was proposed to imply the coincidence, with a lower AT indicating a smaller deviation between theoretical and practical values. The derived formula was confirmed for the verification group of 112 patients, reaching high coincidence, with average ATavg and standard deviation values of 3.57% and 3.06%, respectively. In the second stage, the formula was refined to find the optimal amount of contrast media for the CTA number of LA approaching 400. Finally, the above procedure was applied to head and neck CTA images of the third group of 65 patients, reaching an average CTA number of LA of 407.8 ± 16.2 and finding no significant fluctuations. Full article
(This article belongs to the Special Issue Novelty and Challenge in CT Angiography)
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Review

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20 pages, 12046 KiB  
Review
Photon-Counting Computed Tomography Angiography of Carotid Arteries: A Topical Narrative Review with Case Examples
by Antonella Meloni, Riccardo Cau, Luca Saba, Vincenzo Positano, Carmelo De Gori, Mariaelena Occhipinti, Simona Celi, Eduardo Bossone, Jacopo Bertacchi, Bruna Punzo, Cesare Mantini, Carlo Cavaliere, Erica Maffei and Filippo Cademartiri
Diagnostics 2024, 14(18), 2012; https://doi.org/10.3390/diagnostics14182012 - 11 Sep 2024
Viewed by 835
Abstract
Photon counting computed tomography (PCCT) represents a paradigm shift from conventional CT imaging, propelled by a new generation of X-ray detectors capable of counting individual photons and measuring their energy. The first part of this narrative review is focused on the technical aspects [...] Read more.
Photon counting computed tomography (PCCT) represents a paradigm shift from conventional CT imaging, propelled by a new generation of X-ray detectors capable of counting individual photons and measuring their energy. The first part of this narrative review is focused on the technical aspects of PCCT and describes its key advancements and benefits compared to conventional CT but also its limitations. By synthesizing the existing literature, the second part of the review seeks to elucidate the potential of PCCT as a valuable tool for assessing carotid artery disease. Thanks to the enhanced spatial resolution and image quality, PCCT allows for an accurate evaluation of carotid luminal stenosis. With its ability to finely discriminate between different tissue types, PCCT allows for detailed characterization of plaque morphology and composition, which is crucial for assessing plaque vulnerability and the risk of cerebrovascular events. Full article
(This article belongs to the Special Issue Novelty and Challenge in CT Angiography)
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