Influence of irregular heart rhythm on radiation exposure, image quality and diagnostic impact of cardiac computed tomography angiography in 4,339 patients. Data from the German Cardiac Computed Tomography Registry

Korosoglou, Grigorios; Marwan, Mohamed; Giuşcă, Sorin; Schmermund, Axel; Schneider, Steffen; Bruder, Oliver; Hausleiter, Jörg; Schroeder, Stephen; Leber, Alexander; Limbourg, Tobias; Gitsioudis, Gitsios; Rixe, Johannes; Zahn, Ralf; Katus, Hugo A.; Achenbach, Stephan; Senges, Jochen

doi:10.1016/j.jcct.2017.11.006

Cited by 13 publications

(4 citation statements)

References 30 publications

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“…Previous studies with dual-source technology show that image quality is less dependent on HR as compared to 64-section single-source coronary CT (17,18) and that wide-coverage scanner technology allows for single-beat whole-heart acquisition, reducing the occurrence of motion or step artifacts (19,20). Despite these advances in CT hardware over the past 2 decades, HR continues to be closely associated with image quality at coronary CT angiography (21). Coronary CT angiography performed using these scanners accounted for only 17% of scans in the PROMISE FFR CT substudy, which had a 33% rejection rate (9).…”

Section: Clinical Cohortmentioning

confidence: 99%

Determinants of Rejection Rate for Coronary CT Angiography Fractional Flow Reserve Analysis

Weir‐McCall¹,

Baggiano²,

Torto³

et al. 2019

Radiology

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oronary artery disease is a major cause of mortality and morbidity, and its management consumes a large portion of health care budgets (1). Several noninvasive tests are commonly used as gatekeepers to invasive coronary angiography. Despite the frequent use of noninvasive functional stress testing, the prevalence of obstructive coronary artery disease at elective invasive coronary angiography is low (2,3). Coronary CT angiography is an alternative anatomically based imaging modality used to assess coronary artery disease. However, because of its limited positive predictive value, it can lead to increased downstream use of invasive coronary angiography (4-6). Recently, participant-specific coronary CT angiography data have been combined with computational fluid dynamic models, allowing for noninvasive determination of the fractional flow reserve derived from coronary CT angiography (FFR CT). This correlates well with invasive FFR and reduces rates of invasive coronary angiography use compared with coronary CT angiography alone (7,8). In these previous trials,

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Section: Clinical Cohortmentioning

confidence: 99%

Determinants of Rejection Rate for Coronary CT Angiography Fractional Flow Reserve Analysis

Weir‐McCall¹,

Baggiano²,

Torto³

et al. 2019

Radiology

View full text Add to dashboard Cite

show abstract

“…The effective radiation dose received by patients in CCTA has always been a hot spot for researchers. Some previous studies showed that radiation exposure was significantly higher in patients with irregular rhythm compared to those with regular rhythm [ 14 , 15 ]. Another study focused on diagnostic accuracy of CCTA using a 16-cm CT reported that the doses of prospectively ECG triggering CCTA were 3.9 mSv for the AF patients and 1.3 mSv for the sinus rhythm patients [ 16 ].…”

Section: Discussionmentioning

confidence: 99%

Radiation Dose and Image quality of coronary CT angiography performed with whole-heart coverage CT scanner with 0.25s rotation time in patients with irregular heart rhythm

Yan,

Liu,

Min

et al. 2024

Heliyon

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“…This is one of the first studies on the use of 360° technology based on spherical panoramas in clinical contexts to supplement traditional counselling practices with online delivery of information. It seems to meet patients' needs by increasing their knowledge and reducing fears, which is important for the quality and safety of cCTA as patients' fear increases risks of imaging failures during examination 6 . However, further research is needed to characterize effects of 360°VCE on patients' fear more thoroughly.…”

Section: Discussionmentioning

confidence: 99%

“…This minimizes cardiac motion artifacts, improves image resolution and reduces the required radiation dose 3 . The patient's heart rate is also reduced with medication to reduce motion artifacts [3][4][5] , but if an irregular or high heart rhythm may persists cCTA may not provide sufficiently diagnostic images, or it may lead to increase of the dose 6 . Problematically, 50-74% of cCTA patients felt fear or anxiety before the examination that increased their blood pressure and heart rate 7,8 .…”

Section: Introductionmentioning

confidence: 99%

Patients', radiographers' and radiography students’ experiences of 360° virtual counselling environment for the coronary computed tomography angiography: A qualitative study

et al. 2021

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Introduction:The aim of this study was to describe patients', radiographers' and radiography students' experiences of the developed 360° virtual counselling environment (360°VCE) for the coronary computed tomography angiography (cCTA). Methods:A descriptive qualitative approach was used. The participants were cCTA patients (n=10), radiographers (n=10) and radiography students (n=10) who used the 360°VCE and visited or worked at a university hospital in Finland. The 360°VCE, resembling the authentic environments of a CT imaging unit, included digital counselling materials in text, image, animation and video formats. Data were gathered through thematic interviews individually to obtain an understanding of participants' perspectives and analyzed by inductive content analysis.Results: Five main categories and 15 categories were identified. Identified benefits of the 360°VCE for patients included improvements in knowledge, spatial and environmental orientation, and senses of security and self-efficacy, with reductions in fear and nervousness. Patients found the counselling materials engaging, and that the 360° technology conveniently provided reassuring familiarity with the environment before their visit. Identified benefits for radiographers and radiography students included improvements in patients' mental preparedness, knowledge, spatial and environmental orientation, and reductions in patients' fear, which eased procedures and enhanced diagnostic success. The 360°VCE also provided useful information and familiarization with the cCTA unit for students during clinical practice and staff of referring units. Conclusion:It seems that patients', radiographers' and radiography students' experiences of 360°VCE respond to patients' needs by improved knowledge and reduced fears. Thus, current counselling practices can be usefully complemented with spherical panoramic imaging technology and online information delivery. Implications for practice:The results may be used to improve patient counselling and care, thereby optimizing the cCTA examination procedure and reducing fear. However, further research is needed to characterize experiences of the 360° VCE more comprehensively.

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Influence of irregular heart rhythm on radiation exposure, image quality and diagnostic impact of cardiac computed tomography angiography in 4,339 patients. Data from the German Cardiac Computed Tomography Registry

Cited by 13 publications

References 30 publications

Determinants of Rejection Rate for Coronary CT Angiography Fractional Flow Reserve Analysis

Determinants of Rejection Rate for Coronary CT Angiography Fractional Flow Reserve Analysis

Radiation Dose and Image quality of coronary CT angiography performed with whole-heart coverage CT scanner with 0.25s rotation time in patients with irregular heart rhythm

Patients', radiographers' and radiography students’ experiences of 360° virtual counselling environment for the coronary computed tomography angiography: A qualitative study

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