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Technical innovations in imaging sciences


Feasibility of computed tomography pulmonary angiography with low flow rates

J Gossner
Department of Clinical Radiology, Weende Hospital, Göttingen, Germany
Date of Submission: 29-Feb-2012, Date of Acceptance: 18-Jun-2012, Date of Web Publication: 25-Sep-2012.
Corresponding Author:
Corresponding Author

J. Gossner

Department of Clinical Radiology, Evangelisches Krankenhaus Göttingen- Weende, An der Lutter 24, Göttingen, Germany.
E-mail: johannesgossner@gmx.de

Corresponding Author:
Corresponding Author

J. Gossner

Department of Clinical Radiology, Evangelisches Krankenhaus Göttingen- Weende, An der Lutter 24, Göttingen, Germany.
E-mail: johannesgossner@gmx.de

DOI: 10.4103/2156-7514.100999 Facebook Twitter Google Linkedin

ABSTRACT


Computed tomography pulmonary angiography (CTPA) is the imaging test of choice in suspected pulmonary embolism. High flow rates for the administration of contrast medium are recommended, but these cannot be achieved in a number of patients due to poor peripheral venous access or when using certain central venous catheters. This small feasibility study has examined the CTPA data in a set of 22 patients in whom contrast medium was given at low flow rates (2.0 or 2.5 mL/s). Subjectively, all but one of the patients was judged to be diagnostic. Objectively, enhancement values ≥200 HU were reached in 92% of the examined central vessels (pulmonary trunk, main pulmonary arteries, and lobar arteries). In conclusion, even with a low injection rate CTPA is of diagnostic value in most patients.
Keywords: Computed Tomography, Contrast Media, Flow Rate, Pulmonary Angiography

Cited in 6 Documents

  1. Ping Hou, Xiangnan Feng, Jie Liu, Yue Zhou, Yaojun Jiang, Xiaochen Jiang and Jianbo Gao (2017) Iterative reconstruction in single-source dual-energy CT angiography: feasibility of low and ultra-low volume contrast medium protocols. BJR 90(1075):20160506. doi: 10.1259/bjr.20160506
  2. Paul M. Bunch, Urvi P. Fulwadhva, Jeremy R. Wortman, Andrew N. Primak, Rachna Madan, Michael L. Steigner and Aaron D. Sodickson (2018) Motion Artifact Reduction From High-Pitch Dual-Source Computed Tomography Pulmonary Angiography. Journal of Computer Assisted Tomography :1. doi: 10.1097/RCT.0000000000000736
  3. Ping Hou, Xiangnan Feng, Jie Liu, Xiaopeng Wang, Yaojun Jiang, Leigang Dong and Jianbo Gao (2018) Low Tube Voltage and Iterative Model Reconstruction in Follow-up CT Angiography After Thoracic Endovascular Aortic Repair. Academic Radiology 25(4):494. doi: 10.1016/j.acra.2017.11.001
  4. Anand Devaraj, Charlie Sayer, Sarah Sheard, Sisa Grubnic, Arjun Nair and Ioannis Vlahos (2015) Diagnosing Acute Pulmonary Embolism With Computed Tomography. Journal of Thoracic Imaging 30(3):176. doi: 10.1097/RTI.0000000000000146
  5. J. Gossner and R. Nau (2013) Geriatric Chest Imaging: When and How to Image the Elderly Lung, Age-Related Changes, and Common Pathologies. Radiology Research and Practice 2013:1. doi: 10.1155/2013/584793
  6. Sonja Sudarski, Holger Haubenreisser, Thomas Henzler, Carolin Reischauer, Orpheus Kolokythas, Simon Matoori, Bernhard A. Herzog, Stefan O. Schönberg, Andreas Gutzeit and Rubens Chojniak (2019) Incidence of transient interruption of contrast (TIC) – A retrospective single-centre analysis in CT pulmonary angiography exams acquired during inspiratory breath-hold with the breathing command: “Please inspire gently!”. PLoS ONE 14(1):e0210473. doi: 10.1371/journal.pone.0210473

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