Abstract
Purpose
To assess the feasibility and diagnostic performance of contrast-enhanced, C-arm computed tomography (CACT) of the pulmonary arteries compared to digital subtraction angiography (DSA) in patients suffering from chronic thromboembolic pulmonary hypertension (CTEPH).
Materials
Fifty-two patients with CTEPH underwent ECG-gated DSA and contrast-enhanced CACT. Two readers (R1, R2) independently evaluated pulmonary artery segments and their sub-segmental branching using DSA and CACT for optimal image quality. Afterwards, the diagnostic findings, i.e., intraluminal filling defects, stenosis, and occlusion, were compared. Inter-modality and inter-observer agreement was calculated, and subsequently consensus reading was done and correlated to a reference standard representing the overall consensus of both modalities. Fisher’s exact test and Cohen’s Kappa were applied.
Results
A total of 1352 pulmonary segments were evaluated, of which 1255 (92.8 %) on DSA and 1256 (92.9 %) on CACT were rated to be fully diagnostic. The main causes of the non-diagnostic image quality were motion artifacts on CACT (R1:37, R2:78) and insufficient contrast enhancement on DSA (R1:59, R2:38). Inter-observer agreement was good for DSA (κ = 0.74) and CACT (κ = 0.75), while inter-modality agreement was moderate (R1: κ = 0.46, R2: κ = 0.47). Compared to the reference standard, the inter-modality agreement for CACT was excellent (κ = 0.96), whereas it was inferior for DSA (κ = 0.61) due to the higher number of abnormal consensus findings read as normal on DSA.
Conclusion
CACT of the pulmonary arteries is feasible and provides additional information to DSA. CACT has the potential to improve the diagnostic work-up of patients with CTEPH and may be particularly useful prior to surgical or interventional treatment.
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References
Tanabe N, Sugiura T, Tatsumi K. Recent progress in the diagnosis and management of chronic thromboembolic pulmonary hypertension. Respir Investig. 2013;51:134–46. doi:10.1016/j.resinv.2013.02.005.
Kim NH, Delcroix M, Jenkins DP, et al. Chronic thromboembolic pulmonary hypertension. J Am Coll Cardiol. 2013;62:D92–9. doi:10.1016/j.jacc.2013.10.024.
Pengo V, Lensing AWA, Prins MH, et al. Incidence of chronic thromboembolic pulmonary hypertension after pulmonary embolism. N Engl J Med. 2004;350:2257–64. doi:10.1056/NEJMoa032274.
Lang IM, Madani M. Update on chronic thromboembolic pulmonary hypertension. Circulation. 2014;130:508–18. doi:10.1161/CIRCULATIONAHA.114.009309.
Hoeper MM, Madani MM, Nakanishi N, et al. Chronic thromboembolic pulmonary hypertension. Lancet Respir Med. 2014;2:573–82. doi:10.1016/S2213-2600(14)70089-X.
Jenkins D, Mayer E. State-of-the-art chronic thromboembolic pulmonary hypertension diagnosis and management. Eur Respir Rev. 2012;21:32–9. doi:10.1183/09059180.00009211.
Mayer E. Surgical and post-operative treatment of chronic thromboembolic pulmonary hypertension. Eur Respir Rev. 2010;19:64–7. doi:10.1183/09059180.00007409.
Kim NHS. Assessment of operability in chronic thromboembolic pulmonary hypertension. Proc Am Thorac Soc. 2012;. doi:10.1513/pats.200605-106LR.
Schoepf UJ, Costello P. CT angiography for diagnosis of pulmonary embolism: state of the Art1. Radiology. 2004;230:329–37. doi:10.1148/radiol.2302021489.
Schoepf UJ, Becker CR, Hofmann LK, et al. Multislice CT angiography. Eur Radiol. 2003;13:1946–61. doi:10.1007/s00330-003-1842-7.
Galiè N, Hoeper MM, Humbert M. Guidelines for the diagnosis and treatment of pulmonary hypertension: the Task Force for the Diagnosis and Treatment of Pulmonary Hypertension of the European Society of Cardiology (ESC) and the European Respiratory Society (ERS), endorsed by the International Society of Heart and Lung Transplantation (ISHLT). Eur Heart J. 2009;30:2493–537. doi:10.1093/eurheartj/ehp297.
Meyer BC, Frericks BB, Voges M, et al. Visualization of hypervascular liver lesions during TACE: comparison of angiographic C-arm CT and MDCT. Am J Roentgenol. 2008;190:W263–9. doi:10.2214/AJR.07.2695.
Landzberg MJ. Balloon pulmonary angioplasty for chronic thromboembolic pulmonary hypertension: a need for further dialogue, development, and collaborative study. Circ Cardiovasc Interv. 2012;5:744–5. doi:10.1161/CIRCINTERVENTIONS.112.975813.
Feinstein JA, Goldhaber SZ, Lock JE, et al. Balloon pulmonary angioplasty for treatment of chronic thromboembolic pulmonary hypertension. Circulation. 2001;103:10–3.
Andreassen AK, Ragnarsson A, Gude E, et al. Balloon pulmonary angioplasty in patients with inoperable chronic thromboembolic pulmonary hypertension. Heart. 2013;99:1415–20. doi:10.1136/heartjnl-2012-303549.
Kataoka M, Inami T, Hayashida K, et al. Percutaneous transluminal pulmonary angioplasty for the treatment of chronic thromboembolic pulmonary hypertension. Circ Cardiovasc Interv. 2012;5:756–62. doi:10.1161/CIRCINTERVENTIONS.112.971390.
Mizoguchi H, Ogawa A, Munemasa M, et al. Refined balloon pulmonary angioplasty for inoperable patients with chronic thromboembolic pulmonary hypertension. Circ Cardiovasc Interv. 2012;5:748–55. doi:10.1161/CIRCINTERVENTIONS.112.971077.
Fukui S, Ogo T, Morita Y, et al. Right ventricular reverse remodelling after balloon pulmonary angioplasty. Eur Respir J. 2014;43:erj00129–1402. doi: 10.1183/09031936.00012914.
Sugiyama M, Fukuda T, Sanda Y, et al. Organized thrombus in pulmonary arteries in patients with chronic thromboembolic pulmonary hypertension; imaging with cone beam computed tomography. Jpn J Radiol. 2014;. doi:10.1007/s11604-014-0319-8.
Boyden EA. The nomenclature of the bronchopulmonary segments and their blood supply (as revised by the Seventh International Congress of Anatomists, 1960). Chest. 1961;39:1–6. doi:10.1378/chest.39.1.1.
Kundel HL, Polansky M. Measurement of observer agreement1. Radiology. 2003;228:303–8. doi:10.1148/radiol.2282011860.
Paul J-F, Khallil A, Sigal-Cinqualbre A, et al. Findings on submillimeter MDCT are predictive of operability in chronic thromboembolic pulmonary hypertension. Am J Roentgenol. 2007;188:1059–62. doi:10.2214/AJR.05.0980.
Giannouli E, Maycher B. Imaging techniques in chronic thromboembolic pulmonary hypertension. Curr Opin Pulm Med. 2013;19:562–74. doi:10.1097/MCP.0b013e3283645a00.
Fahrig R, Dixon R, Payne T, et al. Dose and image quality for a cone-beam C-arm CT system. Med Phys. 2006;33:4541–50. doi:10.1118/1.2370508.
Meyer BC, Frericks BB, Albrecht T, et al. Contrast-enhanced abdominal angiographic CT for Intra-abdominal tumor embolization: a new tool for vessel and soft tissue visualization. Cardiovasc Interv Radiol. 2007;30:743–9. doi:10.1007/s00270-007-9029-2.
Meyer BC, Witschel M, Frericks BB, et al. The value of combined soft-tissue and vessel visualisation before transarterial chemoembolisation of the liver using C-arm computed tomography. Eur Radiol. 2009;19:2302–9. doi:10.1007/s00330-009-1410-x.
Ley S, Ley-Zaporozhan J, Pitton MB, et al. Diagnostic performance of state-of-the-art imaging techniques for morphological assessment of vascular abnormalities in patients with chronic thromboembolic pulmonary hypertension (CTEPH). Eur Radiol. 2012;22:607–16. doi:10.1007/s00330-011-2290-4.
Reichelt A, Hoeper MM, Galanski M, Keberle M. Chronic thromboembolic pulmonary hypertension: evaluation with 64-detector row CT versus digital substraction angiography. Eur J Radiol. 2009;71:49–54. doi:10.1016/j.ejrad.2008.03.016.
Meyer BC, Peter O, Nagel M, et al. Electromagnetic field-based navigation for percutaneous punctures on C-arm CT: experimental evaluation and clinical application. Eur Radiol. 2008;18:2855–64. doi:10.1007/s00330-008-1063-1.
Conflict of interest
Jan Hinrichs: No conflict of interest; Steffen Marquardt: No conflict of interest; Christian von Falck: Grants from Siemens Healthcare outside the submitted work; Marius Hoeper: Fees from Actelion, personal fees from Bayer, personal fees from GSK, personal fees from Pfizer, outside the submitted work; Karen Olsson: No conflict of interest; Frank Wacker: Grants from Siemens Healthcare, grants from DFG, Rebirth-Cluster of Excellence, grants from BMBF, German Centre for Lung Research (DZL), grants from Promedicus Ltd., outside the submitted work; Bernhard Meyer: Grants from Siemens Healthcare, during the conduct of the study, outside the submitted work; grants from Promedicus Ltd., outside the submitted work.
Statement of Informed Consent and Human Rights
Our local ethics committee approved our protocol, and written informed consent was obtained from each study patient. The study follows the ethical standards of the Declaration of Helsinki. Under “Materials and Methods”—The article includes no identifying information (does not apply to this article).
Statement of Human Rights and Animal rights
The study follows the ethical standards of the Declaration of Helsinki. Under “Materials and Methods”—Animal studies are not part of this article (does not apply to this article).
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Hinrichs, J.B., Marquardt, S., von Falck, C. et al. Comparison of C-arm Computed Tomography and Digital Subtraction Angiography in Patients with Chronic Thromboembolic Pulmonary Hypertension. Cardiovasc Intervent Radiol 39, 53–63 (2016). https://doi.org/10.1007/s00270-015-1090-7
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DOI: https://doi.org/10.1007/s00270-015-1090-7