2018
DOI: 10.3348/kjr.2018.19.6.1031
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Image Quality and Radiation Dose of High-Pitch Dual-Source Spiral Cardiothoracic Computed Tomography in Young Children with Congenital Heart Disease: Comparison of Non-Electrocardiography Synchronization and Prospective Electrocardiography Triggering

Abstract: ObjectiveTo compare image quality and radiation dose of high-pitch dual-source spiral cardiothoracic computed tomography (CT) between non-electrocardiography (ECG)-synchronized and prospectively ECG-triggered data acquisitions in young children with congenital heart disease.Materials and MethodsEighty-six children (≤ 3 years) with congenital heart disease who underwent high-pitch dual-source spiral cardiothoracic CT were included in this retrospective study. They were divided into two groups (n = 43 for each; … Show more

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Cited by 18 publications
(7 citation statements)
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“…Cardiothoracic CT was performed using a 128-slice dual-source scanner (SOMATOM Definition Flash; Siemens Healthineers, Forchheim, Germany). For scanning, the z-flying focal spot technique was employed using 2 × 64 × 0.6-mm slices with a gantry rotation time of 280 ms, temporal resolution of 75 ms, slice width of 0.75 mm, and reconstruction interval of 0.4 mm during free breathing in all the pediatric patients [7]. Skeletal muscle was quantified using a Hounsfield unit range of −29 to +150.…”
Section: Methodsmentioning
confidence: 99%
“…Cardiothoracic CT was performed using a 128-slice dual-source scanner (SOMATOM Definition Flash; Siemens Healthineers, Forchheim, Germany). For scanning, the z-flying focal spot technique was employed using 2 × 64 × 0.6-mm slices with a gantry rotation time of 280 ms, temporal resolution of 75 ms, slice width of 0.75 mm, and reconstruction interval of 0.4 mm during free breathing in all the pediatric patients [7]. Skeletal muscle was quantified using a Hounsfield unit range of −29 to +150.…”
Section: Methodsmentioning
confidence: 99%
“…Because a small child is commonly positioned below the isocenter even at the highest CT table position (12), an additional patient pad or a vacuum device may be necessary to lift the child further up to the isocenter; on this occasion, it is desirable to be radiolucent in order to avoid artifacts (13). Radiopaque ECG leads for ECG-synchronized CT should be placed outside the scan range (e.g., on the arms and upper abdomen) to avoid artifacts (1214). Of note, radiolucent ECG lead sets made of carbon may be used to reduce the artifacts from radiopaque ECG leads (1115).…”
Section: Patient Preparationmentioning
confidence: 99%
“…There are two types of high-pitch dual-source spiral or helical scan modes applicable to pediatric cardiothoracic CT: non-ECG-synchronized mode, pitch up to 3.2 (3132); and prospectively ECG-triggered mode, pitch up to 3.4 (979899). A recent study using a second-generation dual-source CT scanner (14) disclosed that additional ECG triggering did not substantially reduce cardiac motion artifacts on high-pitch dual-source spiral or helical pediatric cardiothoracic CT in young children with CHD.…”
Section: Vendor-specific Protocolsmentioning
confidence: 99%
“…According to the annual CFs of 398 articles published in 2017–2019, reported in the Journal Citation Reports (Web of Science core collection) by Clarivate Analytics as of October 31, 2020, there were 12 (3.0%) very highly-cited articles (annual CF, 10–51) ( 1 2 3 4 5 6 7 8 9 10 11 12 ), 15 (3.8%) highly-cited articles (annual CF, 5.0–9.75) ( 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 ), 37 (9.3%) intermediately-cited articles (annual CF, 3.0–4.67) ( 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 ), and 276 (69.3%) low-citation articles (annual CF, 0.25–2.67) ( 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 …”
mentioning
confidence: 99%