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Yoshiura T, Masuda T, Tahara M, Kobayashi Y, Kikuhara Y, Ishibashi T, Nonaka H, Oku T, Sato T, Funama Y. Cardiac computed tomography angiography with and without bolus tracking methods in infants with congenital heart disease. RADIATION PROTECTION DOSIMETRY 2024; 200:251-258. [PMID: 38088430 DOI: 10.1093/rpd/ncad295] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Revised: 10/12/2023] [Accepted: 11/15/2023] [Indexed: 03/05/2024]
Abstract
The study investigated radiation dose, vascular computed tomography (CT) enhancement and image quality of cardiac computed tomography angiography (CCTA) with and without bolus tracking (BT) methods in infants with congenital heart disease (CHD). The volume CT dose index (CTDIvol) and dose length product (DLP) were recorded for all CT scans, and the effective dose was obtained using a conversion factors. The CT number for the ascending aorta (AO) and pulmonary artery (PA), image noise of muscle tissue and contrast-to-noise ratio (CNR) were measured and calculated. The median values in the groups with and without BT were 2.20 mGy versus 0.44 mGy for CTDIvol, 8.10 mGy·cm versus 6.20 mGy·cm for DLP, and 0.66 mSv versus 0.51 mSv for effective dose (p < 0.001). There were no statistical differences in vascular CT enhancement, image noise, and CNR. CCTA without BT methods can reduce the radiation dose while maintaining vascular CT enhancement and image quality compared to CCTA with BT methods.
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Affiliation(s)
- Takayuki Yoshiura
- Graduate School of Health Sciences, Kumamoto University, 4-24-1 Kuhonji, Kumamoto, 862-0976, Japan
- Department of Medical Technology, Tsuchiya General Hospital, 3-30 Nakajima-cho, Hiroshima, 730-8655, Japan
| | - Takanori Masuda
- Department of Radiological Technology, Faculty of Health Science and Technology, Kawasaki University of Medical Welfare, 288 Matsushima, Kurashiki-City, Okayama, 701-0193, Japan
| | - Masahiro Tahara
- Hiroshima Central Street Children's Clinic, 7-1 Mikawa-cho, Hiroshima, 730-0029, Japan
| | - Yukie Kobayashi
- Department of Medical Technology, Tsuchiya General Hospital, 3-30 Nakajima-cho, Hiroshima, 730-8655, Japan
| | - Yukari Kikuhara
- Department of Medical Technology, Tsuchiya General Hospital, 3-30 Nakajima-cho, Hiroshima, 730-8655, Japan
| | - Toru Ishibashi
- Department of Medical Technology, Tsuchiya General Hospital, 3-30 Nakajima-cho, Hiroshima, 730-8655, Japan
| | - Haruki Nonaka
- Department of Medical Technology, Tsuchiya General Hospital, 3-30 Nakajima-cho, Hiroshima, 730-8655, Japan
| | - Takayuki Oku
- Department of Medical Technology, Tsuchiya General Hospital, 3-30 Nakajima-cho, Hiroshima, 730-8655, Japan
| | - Tomoyasu Sato
- Department of Medical Technology, Tsuchiya General Hospital, 3-30 Nakajima-cho, Hiroshima, 730-8655, Japan
| | - Yoshinori Funama
- Department of Medical Radiation Sciences, Faculty of Life Sciences, Kumamoto University, 4-24-1 Kuhonji, Kumamoto, 862-0976, Japan
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Abdul Latiff H, Gopal AR, Hidayat ZF, Haranal M, Borhanuddin BK, Alwi M, Samion H. Ductus arteriosus morphology in duct-dependent pulmonary circulation: CT classification and pattern in different ventricular morphology. Cardiol Young 2023; 33:2243-2251. [PMID: 36651340 DOI: 10.1017/s1047951122004218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
BACKGROUND The objective was to study the ductus arteriosus morphology in duct-dependent pulmonary circulation and its pattern in different ventricle morphology using CT angiography. METHOD From January 2013 to December 2015, patients aged 6 months and below with duct-dependent pulmonary circulation underwent CT angiography to delineate the ductus arteriosus origin, tortuosity, site of insertion, and pulmonary artery anatomy. The ductus arteriosus were classified into type I, IIa, IIb, and III based on its site of origin, either from descending aorta, distal arch, proximal arch, or subclavian artery, respectively. RESULTS A total of 114 patients and 116 ductus arteriosus (two had bilateral ductus arteriosus) were analysed. Type I, IIa, IIb, and III ductus arteriosus were seen in 13 (11.2 %), 71 (61.2%), 21 (18.1%), and 11 (9.5%), respectively. Tortuous ductus arteriosus was found in 38 (32.7%), which was commonly seen in single ventricular lesions. Ipsilateral and bilateral branch pulmonary artery stenosis was seen in 68 (59.6%) and 6 (5.3%) patients, respectively. The majority of patients with pulmonary atresia intact ventricular septum had type I (54.4%) and non-tortuous ductus arteriosus, while those with single and biventricular lesions had type II ductus arteriosus (84.9% and 89.7%, respectively). Type III ductus arteriosus was more common in biventricular lesions (77.8%). CONCLUSIONS Ductus arteriosus in duct-dependent pulmonary circulation has a diverse morphology with a distinct origin and tortuosity pattern in different types of ventricular morphology. CT may serve as an important tool in case selection and pre-procedural planning for ductal stenting.
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Affiliation(s)
- Haifa Abdul Latiff
- PCHC Department, Institut Jantung Negara, 145, Jalan Tun Razak, Kuala Lumpur, 50400, Malaysia
| | - Anu Ratha Gopal
- PCHC Department, Institut Jantung Negara, 145, Jalan Tun Razak, Kuala Lumpur, 50400, Malaysia
| | - Zul Febrianti Hidayat
- PCHC Department, Institut Jantung Negara, 145, Jalan Tun Razak, Kuala Lumpur, 50400, Malaysia
| | - Maruti Haranal
- Department of Cardiac Surgery, Institut Jantung Negara, 145, Jalan Tun Razak, Kuala Lumpur, 50400, Malaysia
| | - Boekren K Borhanuddin
- PCHC Department, Institut Jantung Negara, 145, Jalan Tun Razak, Kuala Lumpur, 50400, Malaysia
| | - Mazeni Alwi
- PCHC Department, Institut Jantung Negara, 145, Jalan Tun Razak, Kuala Lumpur, 50400, Malaysia
| | - Hasri Samion
- PCHC Department, Institut Jantung Negara, 145, Jalan Tun Razak, Kuala Lumpur, 50400, Malaysia
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Sakrana AA, Alharbi IH, Elmokadem AH. Diagnostic accuracy of lower-dose cardiac CT in evaluating young infants with non-coronary complex congenital heart disease on a 64-slice multidetector CT scanner. Acta Radiol 2022; 64:2024-2032. [PMID: 36451522 DOI: 10.1177/02841851221139672] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
Abstract
Background Redoable precise and non-invasive diagnostic imaging modality with the least radiation dose is essential for infants with congenital heart disease (CHD) . Purpose To investigate the accuracy and estimate the radiation dose of our cardiac computed tomography (CCT) protocol. Material and Methods A total of 82 infants with CHD underwent non-ECG-gated CCT without contrast timing scanning techniques and were retrospectively studied. The image quality and radiation dose were estimated. The radiation dose was compared statistically to virtual retrospective ECG-gated and prospective ECG-triggering scanning modes. The diagnostic accuracy was assessed assuming the surgical results as the diagnostic gold standard. Results Most exams showed a high quality with low radiation doses compared to previous studies. The mean effective dose (ED) was 0.39 ± 1.2, significantly lower than that of the virtual retrospective ECG-gated and prospective ECG-triggering scanning and lower than in previous studies. Our CCT protocol has achieved a diagnostic accuracy of 99.52% with a sensitivity of 94.83% and specificity of 99.91%. Conclusion Non-ECG-gated CCT without contrast timing techniques can detect the non-coronary cardiovascular defects of CHD in infants with an ultralow radiation dose and a high diagnostic accuracy.
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Affiliation(s)
- Amal Abdelsattar Sakrana
- Department of Diagnostic and Interventional radiology, Mansoura University Hospital, Mansoura, Egypt
| | | | - Ali H Elmokadem
- Department of Diagnostic and Interventional radiology, Mansoura University Hospital, Mansoura, Egypt
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Ramirez-Suarez KI, Tierradentro-García LO, Otero HJ, Rapp JB, White AM, Partington SL, Harris MA, Vatsky SA, Whitehead KK, Fogel MA, Biko DM. Optimizing neonatal cardiac imaging (magnetic resonance/computed tomography). Pediatr Radiol 2022; 52:661-675. [PMID: 34657169 DOI: 10.1007/s00247-021-05201-w] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Revised: 07/28/2021] [Accepted: 09/01/2021] [Indexed: 10/20/2022]
Abstract
Magnetic resonance imaging (MRI) and CT perform an important role in the evaluation of neonates with congenital heart disease (CHD) when echocardiography is not sufficient for surgical planning or postoperative follow-up. Cardiac MRI and cardiac CT have complementary applications in the evaluation of cardiovascular disease in neonates. This review focuses on the indications and technical aspects of these modalities and special considerations for imaging neonates with CHD.
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Affiliation(s)
- Karen I Ramirez-Suarez
- Roberts Center for Pediatric Research, Children's Hospital of Philadelphia, 734 Schuylkill Ave, Philadelphia, PA, 19146, USA. .,Department of Radiology, Children's Hospital of Philadelphia, Philadelphia, PA, USA.
| | - Luis Octavio Tierradentro-García
- Roberts Center for Pediatric Research, Children's Hospital of Philadelphia, 734 Schuylkill Ave, Philadelphia, PA, 19146, USA.,Department of Radiology, Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Hansel J Otero
- Department of Radiology, Children's Hospital of Philadelphia, Philadelphia, PA, USA.,Perelman School of Medicine at The University of Pennsylvania, Philadelphia, PA, USA
| | - Jordan B Rapp
- Department of Radiology, Children's Hospital of Philadelphia, Philadelphia, PA, USA.,Perelman School of Medicine at The University of Pennsylvania, Philadelphia, PA, USA
| | - Ammie M White
- Department of Radiology, Children's Hospital of Philadelphia, Philadelphia, PA, USA.,Perelman School of Medicine at The University of Pennsylvania, Philadelphia, PA, USA
| | - Sara L Partington
- Division of Cardiology, Department of Pediatrics, Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Matthew A Harris
- Department of Radiology, Children's Hospital of Philadelphia, Philadelphia, PA, USA.,Perelman School of Medicine at The University of Pennsylvania, Philadelphia, PA, USA.,Division of Cardiology, Department of Pediatrics, Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Seth A Vatsky
- Department of Radiology, Children's Hospital of Philadelphia, Philadelphia, PA, USA.,Perelman School of Medicine at The University of Pennsylvania, Philadelphia, PA, USA
| | - Kevin K Whitehead
- Department of Radiology, Children's Hospital of Philadelphia, Philadelphia, PA, USA.,Perelman School of Medicine at The University of Pennsylvania, Philadelphia, PA, USA.,Division of Cardiology, Department of Pediatrics, Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Mark A Fogel
- Department of Radiology, Children's Hospital of Philadelphia, Philadelphia, PA, USA.,Perelman School of Medicine at The University of Pennsylvania, Philadelphia, PA, USA.,Division of Cardiology, Department of Pediatrics, Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - David M Biko
- Department of Radiology, Children's Hospital of Philadelphia, Philadelphia, PA, USA.,Perelman School of Medicine at The University of Pennsylvania, Philadelphia, PA, USA
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OUP accepted manuscript. Eur Heart J Cardiovasc Imaging 2022; 23:e279-e289. [DOI: 10.1093/ehjci/jeac048] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Accepted: 03/02/2022] [Indexed: 11/14/2022] Open
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Baş S, Alkara U, Aliyev B. Evaluation of complex congenital heart disease with prospective ECG-gated cardiac CT in a single heartbeat at low tube voltage (70 kV) and adaptive statistical iterative reconstruction in infants: a single center experience. Int J Cardiovasc Imaging 2021; 38:413-422. [PMID: 34487310 DOI: 10.1007/s10554-021-02390-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/18/2021] [Accepted: 08/21/2021] [Indexed: 10/20/2022]
Abstract
The purpose of this study is to evaluate the radiation dose, image quality, and diagnostic accuracy of prospective ECG-gated cardiac CT at 70 kV and adaptive statistical iterative reconstruction (ASIR), with a single source, 512 slice MDCT in the diagnosis of complex congenital heart disease in infants. We retrospectively evaluated 47 infants (ages 1 day to 353 days) with prospective ECG-gated cardiac CT that was performed on a single source 512 slice CT at low tube voltage (70 kV) using a wide detector aperture, adaptive statistical iterative reconstruction algorithm (ASIR), and specific reconstruction software reducing coronary motion artifacts (SnapShot Freeze). All cardiac images were obtained during the first pass of contrast material through the anatomic structures of interest and the targets for the center of the acquisition window were set 45% of the R-R interval during one cardiac cycle without sedation and breath-hold. The median effective dose measured in our study was 0.64 ± 0.16 mSv. The average subjective overall image quality score was 4.34 ± 0.31 (range 3-5). For the determination of objective image quality, Mean Noise (HU), SNR, and CNR values emerged as 20.8, 28.7(for pulmonary artery), and 27.1, respectively. Diagnostic accuracy was 100% for the main purposes for the main clinical indication. During cardiac CT examination, pathologies in addition to cardiac anomalies were found in 9/47 of cases (7 severe airway obstructions,1 posterior diaphragmatic hernia, 1 vertebral anomaly). Prospective ECG-gated cardiac CT scan at 70 kV and ASIR in infants with complex CHD provides low radiation dose (submillisievert) in a single heartbeat with a good objective and subjective image quality. It also provides important benefits in the diagnosis of additional pathology.
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Affiliation(s)
- Serap Baş
- Gaziosmanpaşa Hospital, Department of Radiology, Istanbul Yeni Yuzyil University, Merkez Mah. Çukurçeşme Cad. No:51 Gaziosmapaşa, 34245, Istanbul, Turkey.
| | - Utku Alkara
- Gaziosmanpaşa Hospital, Department of Radiology, Istanbul Yeni Yuzyil University, Merkez Mah. Çukurçeşme Cad. No:51 Gaziosmapaşa, 34245, Istanbul, Turkey
| | - Bahruz Aliyev
- Gaziosmanpaşa Hospital, Department of Pediatric Cardiology, Istanbul Yeni Yuzyil University, Istanbul, Turkey
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Feasibility of using a non-sedation protocol for evaluation of neonatal congenital heart disease by using a 16-cm wide-detector computed tomography with a low radiation dose: preliminary experience from a single pediatric medical center. Int J Cardiovasc Imaging 2021; 37:2303-2310. [PMID: 33656630 DOI: 10.1007/s10554-021-02197-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Accepted: 02/16/2021] [Indexed: 10/22/2022]
Abstract
The aim of this study is to explore the feasibility of using a non-sedation protocol for the evaluation of neonatal congenital heart disease by using 16-cm wide-detector CT with a low radiation dose. Thirty-four neonates (group 1) were enrolled to undergo cardiac CT without sedation between August 2018 and March 2019. The control group (group 2) comprising 20 inpatient neonates was sedated. Cardiac CT was performed using 16-cm area detector 320-row CT with free breathing and prospective ECG-triggering scan mode. The examination completion time, radiation dose, and image quality were compared between the groups. The results of cardiac CT for patients in group 1 who underwent surgery were compared with surgical findings. Intergroup differences in body weight, age, examination completion time, radiation dose, and image quality evaluation were not significant. There was no significant difference in oxygen saturation before and after the examination in group 1. In all, 98 separate cardiovascular abnormalities in 27 group 1 patients were confirmed using surgical reports. The overall sensitivity, specificity, positive predictive value, and negative predictive value of cardiac CT were 94.90%, 100.0%, 100.0%, and 98.53%. The non-sedation protocol can be applied in neonates with congenital heart disease by using 16-cm wide-detector CT with a low radiation dose. Based on the image quality obtained, non-sedative examination did not extend the examination completion time and helped avoid the possible side effects of sedative drugs.
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Tsapaki V. Radiation dose optimization in diagnostic and interventional radiology: Current issues and future perspectives. Phys Med 2020; 79:16-21. [PMID: 33035737 DOI: 10.1016/j.ejmp.2020.09.015] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/27/2020] [Revised: 09/04/2020] [Accepted: 09/19/2020] [Indexed: 12/16/2022] Open
Affiliation(s)
- Virginia Tsapaki
- Dosimetry and Medical Radiation Physics Section, International Atomic Energy Agency, Austria.
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