Improved coronary artery contrast enhancement using noise-optimised virtual monoenergetic imaging from dual-source dual-energy computed tomography

Arendt, Christophe; Czwikla, Rouben; Lenga, Lukas; Wichmann, Julian L.; Albrecht, Moritz H.; Booz, Christian; Martin, Simon S.; Leithner, Doris; Tischendorf, Patricia; Blandino, Alfredo; Vogl, Thomas J.; D’Angelo, Tommaso

doi:10.1016/j.ejrad.2019.108666

Cited by 27 publications

(20 citation statements)

References 34 publications

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“…CCTA is considered the preferred noninvasive imaging methods in terms of efficacy, accuracy, and diagnostic confidence for the detection of anatomic details of congenital anomalies [12 , 13] . Recent developments of modern CT platforms for dose reduction and image quality improvement can get the higher spatial or temporal resolution, greater anatomic coverage, and quantitative imaging capabilities [12] , [13] , [14] , [15] , [16] . For example, Dual-source CT scanners can blend or divide raw data acquired from each tube, allowing the generation of images at different radiation doses in a single CT examination [17] .…”

Section: Discussionmentioning

confidence: 99%

“…For example, Dual-source CT scanners can blend or divide raw data acquired from each tube, allowing the generation of images at different radiation doses in a single CT examination [17] . Furthermore, dual-energy CT can enhance both the tissue contrast in virtual monoenergetic imaging (VMI) by using reconstruction algorithms and the visualization of vascular anatomy [12] , [13] , [14] , [15] . A VMI enables optimization of the kiloelectron volt (keV) level to evaluate the objective and subjective image quality of coronary vascular anatomy, which also allows for optimization of scan protocols by reducing the necessary amount of contrast material or radiation dose [12] , [13] , [14] , [15] , [16] , 18] .…”

Section: Discussionmentioning

confidence: 99%

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Fistula from right and left coronary arteries to pulmonary artery: Coronary CT angiography and coronary angiography findings

Lim

Hwang

Kim

et al. 2021

Radiology Case Reports

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Coronary artery fistula is an abnormal communication between the coronary artery and either the cardiac chamber or the great vessel. In particular, the coronary-to-pulmonary artery fistula can be supplied by either one or both coronary arteries and drains to the pulmonary trunk. We report a unique case of fistula originating from both coronary arteries and draining into both sinuses of the main pulmonary artery in a 57-year-old female who experienced chronic chest pain and palpitation. Dilated and tortuous fistulas were found in coronary angiography and coronary computed tomography angiography examinations. To aid early diagnosis and clinical management, radiologists should be aware of the characteristic radiologic findings.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Fistula from right and left coronary arteries to pulmonary artery: Coronary CT angiography and coronary angiography findings

Lim

Hwang

Kim

et al. 2021

Radiology Case Reports

View full text Add to dashboard Cite

show abstract

“…However, misregistration artifacts may occur due to patient’s movements or arterial pulsations between the two scans [ 13 , 91 ]. DECT algorithms are well known to improve image quality, to reduce the contrast medium volume and the radiation dose to patients undergoing CTA studies [ 6 , 13 , 92 – 94 ]. DECT-based three-material decomposition also allows for subtraction of the calcium signal from iodinated vessels, permitting the removal of hard plaques from a CTA scan [ 95 ].…”

Section: Vascular Applicationsmentioning

confidence: 99%

Virtual non-calcium dual-energy CT: clinical applications

et al. 2021

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Dual-energy CT (DECT) has emerged into clinical routine as an imaging technique with unique postprocessing utilities that improve the evaluation of different body areas. The virtual non-calcium (VNCa) reconstruction algorithm has shown beneficial effects on the depiction of bone marrow pathologies such as bone marrow edema. Its main advantage is the ability to substantially increase the image contrast of structures that are usually covered with calcium mineral, such as calcified vessels or bone marrow, and to depict a large number of traumatic, inflammatory, infiltrative, and degenerative disorders affecting either the spine or the appendicular skeleton. Therefore, VNCa imaging represents another step forward for DECT to image conditions and disorders that usually require the use of more expensive and time-consuming techniques such as magnetic resonance imaging, positron emission tomography/CT, or bone scintigraphy. The aim of this review article is to explain the technical background of VNCa imaging, showcase its applicability in the different body regions, and provide an updated outlook on the clinical impact of this technique, which goes beyond the sole improvement in image quality.

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“…7 ). In general, cardiothoracic studies should all include some combination of the aforementioned DECT reconstructions as standard to ensure that the most clinical data is acquired from a single exam [ 44 , 45 ]. For maximized clinical adoption and radiologist efficiency, the best performing workflow at our institution is incorporating these reconstructions into the existing protocols and enabling automatic transfer from scanner to PACS.…”

Section: Workflow Considerations With Dectmentioning

confidence: 99%

Dual energy imaging in cardiothoracic pathologies: A primer for radiologists and clinicians

Gupta

Kikano

Bera

et al. 2021

European Journal of Radiology Open

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Improved coronary artery contrast enhancement using noise-optimised virtual monoenergetic imaging from dual-source dual-energy computed tomography

Cited by 27 publications

References 34 publications

Fistula from right and left coronary arteries to pulmonary artery: Coronary CT angiography and coronary angiography findings

Fistula from right and left coronary arteries to pulmonary artery: Coronary CT angiography and coronary angiography findings

Virtual non-calcium dual-energy CT: clinical applications

Dual energy imaging in cardiothoracic pathologies: A primer for radiologists and clinicians

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