Coronary Artery Anomalies and Associated Radiologic Findings

Saade, Charbel; Bou‐Fakhredin, Rayan; Achkar, Bassam El; Ghieh, Diamond; Mayat, Ahmad; Abchee, Antoine; Refaat, Marwan M.; Ismail, Hussein; El-Rayess, Hebah M.; Karout, Lina; El-Merhi, Fadi

doi:10.1097/rct.0000000000000875

Cited by 10 publications

(8 citation statements)

References 71 publications

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“…For the stenosis score of each segment, we thought the artifact caused by calcification on CCTA could make difference between the two examinations. NCE-CMRA does not require the use of contrast agent, so it can be applied to special groups such as pregnant women and patients with renal insufficiency (1). Another advantage is that it is compatible with film acquisition which provides a smaller amplitude of motion of coronary arteries (22).…”

Section: Discussionmentioning

confidence: 99%

“…Coronary artery disease (CAD) is one of the leading causes of death in middle-aged and older adults. With the development of the economy and the improvement of living standard in various countries around the world, the incidence of coronary atherosclerotic heart disease is increasing and becoming younger ( 1 ). Coronary artery stenosis is an important basis for imaging diagnosis of coronary heart disease.…”

Section: Introductionmentioning

confidence: 99%

“…However, it is limited for screening CAD due to its invasiveness and costs. Coronary computed tomography angiography (CCTA) has disadvantages such as radiation and invasiveness, which may limit its use in some people because of the risk of allergic reactions caused by contrast agents, although it is the most common method for the diagnosis of CAD ( 1 , 3 , 4 ). Magnetic resonance imaging (MRI) is a promising non-invasive and non-radiative examination for assessing the coronary arteries, so the non-contrast-enhanced coronary magnetic resonance angiography (NCE-CMRA) is expected to detect coronary stenosis though its precise visualization remains a challenge compared with CCTA ( 5 ).…”

Section: Introductionmentioning

confidence: 99%

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Feasibility of 3.0 T balanced fast field echo non-contrast-enhanced whole-heart coronary magnetic resonance angiography

Chen¹,

Guo²,

Yu³

et al. 2023

Cardiovasc Diagn Ther

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Background: Coronary artery disease (CAD) is one of the most common diseases seriously harmful to human health caused by atherosclerosis. Besides coronary computed tomography angiography (CCTA) and invasive coronary angiography (ICA), coronary magnetic resonance angiography (CMRA) has become an alternative examination. The purpose of this study was to prospectively evaluate the feasibility of 3.0 T freebreathing whole-heart non-contrast-enhanced coronary magnetic resonance angiography (NCE-CMRA).Methods: After Institutional Review Board approval, the NCE-CMRA data sets of 29 patients acquired successfully at 3.0 T were evaluated independently by two blinded readers for visualization and image quality of coronary arteries using the subjective quality grade. The acquisition times were recorded in the meantime.A part of the patients had undergone CCTA, we represented stenosis by scores and used the Kappa to evaluate the consistency between CCTA and NCE-CMRA.Results: Six patients did not get diagnostic image quality because of severe artifacts. The image quality score assessed by both radiologists is 3.2±0.7, which means the NCE-CMRA can show the coronary arteries excellently. The main vessels of the coronary artery on NCE-CMRA images are considered reliably assessable. The acquisition time of NCE-CMRA, is 8.8±1.2 min. The Kappa of CCTA and NCE-CMRA on detecting stenosis is 0.842 (P<0.001). Conclusions:The NCE-CMRA results in reliable image quality and visualization parameters of coronary arteries within a short scan time. The NCE-CMRA and CCTA have a good agreement for detecting stenosis.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Feasibility of 3.0 T balanced fast field echo non-contrast-enhanced whole-heart coronary magnetic resonance angiography

Chen¹,

Guo²,

Yu³

et al. 2023

Cardiovasc Diagn Ther

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“…They also cause difficulty during cardiac procedures such as coronary angiography, percutaneous coronary intervention, and cardiac surgery. 1,2 Nowadays, the most commonly used classification of CAAs is including three categories: anomalies of origin and course; intrinsic coronary artery anatomy; and termination. 3 A dual origin of the circumflex artery from the main stem of the left coronary artery is not reported in previous literature.…”

Section: Discussionmentioning

confidence: 99%

A newly described variation of normal coronary: Dual origin of the circumflex artery from the main stem of the left coronary artery

Wang

Song

et al. 2021

Journal of Cardiac Surgery

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Background The dual origin of the circumflex artery from the main stem of the left coronary artery is rare variation of normal coronary, which is not reported in previous literature. We report a case of old man with the dual origin of the circumflex artery from the main stem of the left coronary artery. Methods and ResultsA 58-year-old man presented with chest pain and dyspnea.The echocardiogram and Laboratory examination are no obvious abnormalities. He was referred to coronary computed tomography angiography (CCTA). The CCTA showed the proximal circumflex artery forming a Y-shaped bifurcation with the dual origin of the main stem of the left coronary artery.

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“…The rapid advances in CT technology have allowed signi cant radiation dose reduction by employing sophisticated image reconstruction algorithms (1). These iterative reconstruction (IR) algorithms were introduced in 2008 with the aim of reducing image noise and radiation dose while increasing con dence in pathology detection (2,3,4). However, while there is signi cant advances in radiation dose reduction, a great lag still remains in determining and optimizing the reconstruction techniques that enables reliable pathology detection with reasonably lower radiation dose levels (5).…”

Section: Introductionmentioning

confidence: 99%

Comparing model based iterative reconstruction to hybrid based iterative reconstruction in stenosis detection during ECG-gated coronary CTA

Maroun

Ghosn

Serban

et al. 2022

Preprint

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Purpose: To compare the quantitative and qualitative image quality of hybrid (HBIR) and model based (MBIR) iterative reconstruction during coronary Computed Tomography Angiography (CTA). Materials and Methods: Institutional review board approved this retrospective study. Patients (n=200) underwent a single coronary CTA with two iterative reconstruction techniques. Group A employed HBIR and group B employed MBIR. Quantitative and qualitative image quality was compared for each group. The mean attenuation values and signal-to-noise ratio (SNR) of each group were compared. Visual grading characteristics (VGC) and Cohen’s Kappa methodology were measured employing an image quality scoring system for coronary CTA. Receiver operating (JAFROC) and stenosis severity were compared with conventional coronary angiography. A p-value <0.05 was considered statistically significant. Results: Mean attenuation values (HU) in the HBIR group were significantly greater in the cusp (564.18±118.71) and left coronary (517.59±118.63) whilst in the MBIR group, the right coronary (531.67±138.93), left anterior descending (529.82±120.6) and left circumflex (538.32±132.94) arteries were significantly higher (p<0.001). The SNR was significantly greater in MBIR (5.32±1.1) compared to HBIR (3.64±0.8) (p<0.0001), with MBIR being superior to HBIR in the total and individual segments of the coronary arteries. VGC image quality assessment demonstrated that readers preferred HBIR over MBIR (p<0.001). Analysis of JAFROC data demonstrated a significant difference in detection of coronary stenosis in RCA (p<0.021), LCA (p<0.0001) and LD (p<0.0001) with HBIR showing overall smaller variability range compared to MBIR. Conclusion: When comparing quantitative and qualitative image quality, MBIR was superior in the former, whilst HBIR was superior in the later. Coronary artery stenosis assessment demonstrated less variability in diagnosis when using HBIR compared to MBIR. This highlights the need for careful attention when employing iterative reconstruction in order not to impact clinical outcomes.

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Coronary Artery Anomalies and Associated Radiologic Findings

Cited by 10 publications

References 71 publications

Feasibility of 3.0 T balanced fast field echo non-contrast-enhanced whole-heart coronary magnetic resonance angiography

Feasibility of 3.0 T balanced fast field echo non-contrast-enhanced whole-heart coronary magnetic resonance angiography

A newly described variation of normal coronary: Dual origin of the circumflex artery from the main stem of the left coronary artery

Comparing model based iterative reconstruction to hybrid based iterative reconstruction in stenosis detection during ECG-gated coronary CTA

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