Advantages of Photon-Counting Detector CT in Aortic Imaging

Zanon, Chiara; Cademartiri, Filippo; Toniolo, Alessandro; Bini, Costanza; Clemente, Alberto; Colacchio, Elda Chiara; Cabrelle, Giulio; Mastro, Florinda; Antonello, Michele; Quaia, Emilio; Pepe, Alessia

doi:10.3390/tomography10010001

Cited by 11 publications

(9 citation statements)

References 45 publications

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“…In addition, novel imaging technology photon-counting CT (PCCT) scanners can reduce radiation doses and improve the image quality. PCCT allows for better signal-to-noise ratios (SNRs) for the same dose, especially in overweight patients, resulting in images of comparable quality to traditional CT [ 37 ]. The implementation of dose-tracking software and real-time dose monitoring provides immediate feedback, facilitating dose optimization.…”

Section: Discussionmentioning

confidence: 99%

Radiation Overuse in Intensive Care Units

Zanon,

Bini,

Toniolo

et al. 2024

Tomography

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Radiological imaging is essential for acute patient management in Intensive Care Units (ICUs); however, it introduces the risk of exposure to ionizing radiation. This review synthesizes research on radiation exposure in ICU settings, highlighting its rise during the COVID-19 pandemic and the rise in repetitive imaging. Our analysis extends to radiation safety thresholds, revealing that some ICU patients exceed the diagnostic reference level, emphasizing the need to balance diagnostic utility against potential long-term risks, such as cancer. Prospective studies have demonstrated an increase in the median cumulative effective dose in patients with trauma over time, prompting calls for improved awareness and monitoring. Moreover, innovative dose-reduction strategies and optimized protocols, especially in neuro-ICUs, promise to mitigate these risks. This review highlights the essential but risky role of radiological imaging in critical care. It advocates for rigorous radiation management protocols to safeguard patient health while ensuring the continuity of high-quality medical care.

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Section: Discussionmentioning

confidence: 99%

Radiation Overuse in Intensive Care Units

Zanon,

Bini,

Toniolo

et al. 2024

Tomography

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“…New techniques such as Photon-Counting CT ensure good image quality and an excellent contrast-to-noise ratio. In this context, patients with renal failure can benefit from the investigation, reducing the risks to a minimum, by reducing the amount of contrast material administered [70].…”

Section: Summary Of Evidencementioning

confidence: 99%

Morphological Aspects of the Aberrant Right Subclavian Artery—A Systematic Review of the Literature

Nedelcu,

Lupu,

Moraru

et al. 2024

JPM

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Background: The aberrant origin of the right subclavian artery (ARSA), also known as the lusoria artery, is a congenital malformation with an incidence of 0.5–4.4%. Most cases are incidental due to minimal clinical manifestations. Computer tomography (CT) is important in diagnosing and evaluating these patients. Materials and Methods: We conduct a computerized search in two databases, PubMed and EMBASE, for articles published between 1 January 2022 and 31 December 2023, PROSPERO code: CRD42024511791. Eligible for inclusion were case reports and case series that presented the aberrant origin of the right subclavian artery. The main outcome was the highlighting of the morphological types of ARSA. In this context, we proposed a new classification system of this anomaly. The secondary outcome was the evaluation of the demographic distribution of the lusoria artery. Results: Our search identified 47 articles describing 51 patients with ARSA. The typical course for ARSA is retroesophageal, being registered in 49 out of 51 patients. This malformation is frequently associated with Kommerell diverticulum (15 out of 51), troncus bicaroticus (7 out of 51), and aberrant origins of the right vertebral artery (7 out of 51). We observed a higher incidence of the condition among women (32 out of 51) compared to men (19 out of 51). From a demographic point of view, ARSA is more frequent in the “44 to 57 years” and “58 to 71 years” age ranges. Conclusions: ARSA is a congenital malformation resulting from a defect in the development of the aortic arches. The imaging studies such as computer tomography play a defined diagnostic role.

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“…A significant leap has been made with the introduction of energy-resolving photon-counting detectors (PCDs), which are distinguished by their ability to discern the energy of individual X-ray photons, offering improved spatial resolution, noise reduction, dose efficiency, and spectral imaging [1]. The introduction of clinical photon-counting CT (PCCT) systems in 2021 has led to significant advancements in 2 of 13 CT technology, offering the potential for lower patient doses and higher spatial resolution owing to smaller detector pixels [2][3][4][5][6]. This innovation is poised to update clinical applications, particularly in anatomical imaging, by providing clearer images of dental structures (5).…”

Section: Introductionmentioning

confidence: 99%

“…2024, 13, x FOR PEER REVIEW 2 of 13 resolution, noise reduction, dose efficiency, and spectral imaging [1]. The introduction of clinical photon-counting CT (PCCT) systems in 2021 has led to significant advancements in CT technology, offering the potential for lower patient doses and higher spatial resolution owing to smaller detector pixels [2][3][4][5][6]. This innovation is poised to update clinical applications, particularly in anatomical imaging, by providing clearer images of dental structures (5).…”

Section: Introductionmentioning

confidence: 99%

Potential Benefits of Photon-Counting CT in Dental Imaging: A Narrative Review

Zanon,

Pepe,

Cademartiri

et al. 2024

JCM

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Background/Objectives: Advancements in oral imaging technology are continually shaping the landscape of dental diagnosis and treatment planning. Among these, photon-counting computed tomography (PCCT), introduced in 2021, has emerged as a promising, high-quality oral technology. Dental imaging typically requires a resolution beyond the standard CT systems achievable with the specialized cone-beam CT. PCCT can offer up to 100 µm resolution, improve soft-tissue contrast, and provide faster scanning times, which are crucial for detailed dental diagnosis and treatment planning. Using semiconductor detectors, PCCT produces sharper images and can potentially reduce the number of scans required, thereby decreasing patient radiation exposure. This review aimed to explore the potential benefits of PCCT in dental imaging. Methods: This review analyzed the literature on PCCT in dental imaging from January 2010 to February 2024, sourced from PubMed, Scopus, and Web of Science databases, focusing on high-resolution, patient safety, and diagnostic efficiency in dental structure assessment. We included English-language articles, case studies, letters, observational studies, and randomized controlled trials while excluding duplicates and studies unrelated to PCCT’s application in dental imaging. Results: Studies have highlighted the superiority of PCCT in reducing artifacts, which are often problematic, compared to conventional CBCT and traditional CT scans, due to metallic dental implants, particularly when used with virtual monoenergetic imaging and iterative metal artifact reduction, thereby improving implant imaging. This review acknowledges limitations, such as the potential for overlooking other advanced imaging technologies, a narrow study timeframe, the lack of real-world clinical application data in this field, and costs. Conclusions: PCCT represents a promising advancement in dental imaging, offering high-resolution visuals, enhanced contrast, and rapid scanning with reduced radiation exposure.

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Advantages of Photon-Counting Detector CT in Aortic Imaging

Cited by 11 publications

References 45 publications

Radiation Overuse in Intensive Care Units

Radiation Overuse in Intensive Care Units

Morphological Aspects of the Aberrant Right Subclavian Artery—A Systematic Review of the Literature

Potential Benefits of Photon-Counting CT in Dental Imaging: A Narrative Review

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