ArticleEuropean radiology2010
Optimisation of contrast medium volume and injection-related factors in CT pulmonary angiography: 64-slice CT study.
Article in European radiology, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.
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Who cites it
16 citing papers in PubMed.
- Individualized Scan Protocol Based on Body Mass Index in Dual-Energy Computed Tomography Pulmonary Angiography to Reduce Radiation and Contrast Doses with Improved Image Quality.Medical science monitor : international medical journal of experimental and clinical research · 2023Trial
- Visibility and image quality of peripheral pulmonary arteries in pulmonary embolism patients using free-breathing combined with a high-threshold bolus-triggering technique in CT pulmonary angiography.The Journal of international medical research · 2020Trial
- Suction/Inspiration against resistance or standardized Mueller maneuver : a new breathing technique to improve contrast density within the pulmonary artery: a pilot CT study.European radiology · 2015Trial
- Pulmonary embolism detection without intravenous contrast using electron density and Z-effective maps from dual-energy CT.Radiology advances · 2024Article
- Optimizing contrast protocol for bone-subtraction CT angiography of intracranial arteries in normal dogs using 160-slice CT.Veterinary medicine and science · 2023Article
- An audit of the adequacy of contrast enhancement in CT pulmonary angiograms in a South African tertiary academic hospital setting.SA journal of radiology · 2022Article
- Optimal placement of the region of interest for bolus tracking on brain computed tomography angiography in Beagle dogs.The Journal of veterinary medical science · 2021Article
- Acquisition time, radiation dose, subjective and objective image quality of dual-source CT scanners in acute pulmonary embolism: a comparative study.European radiology · 2020Article
- Arterial attenuation in individualized computed tomography pulmonary angiography injection protocol adjusted based on the patient's body mass index.Journal of research in medical sciences : the official journal of Isfahan University of Medical Sciences · 2020Article
- Computed tomography pulmonary angiography using a 20% reduction in contrast medium dose delivered in a multiphasic injection.World journal of radiology · 2017Article
- Article
- High-Pitch CT Pulmonary Angiography in Third Generation Dual-Source CT: Image Quality in an Unselected Patient Population.PloS one · 2016Article
- Optimizing computed tomography pulmonary angiography using right atrium bolus monitoring combined with spontaneous respiration.European radiology · 2015Article
- Image quality of low mA CT pulmonary angiography reconstructed with model based iterative reconstruction versus standard CT pulmonary angiography reconstructed with filtered back projection: an equivalency trial.European radiology · 2015Article
- An optimised patient-specific approach to administration of contrast agent for CT pulmonary angiography.European radiology · 2013Article
- Feasibility of computed tomography pulmonary angiography with low flow rates.Journal of clinical imaging science · 2012Article
Corrections and comments
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Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
objectiveTo compare the image quality of computed tomography pulmonary angiography (CTPA) obtained with the injection of various low doses of contrast medium (CM) with different injection-related factors.
methodsA total of 90 patients (42 females, 48 males; 54.3 +/- 18.6 years) undergoing CTPA were included. Three CM protocols, each containing 30 patients, were created. Protocols 1, 2 and 3 consisted of a CM of 60 ml, 55 ml and 50 ml, and a bolus trigger level of 120 HU, 90 HU and 75 HU, respectively. Injection was uniphasic for protocols 1 and 2 (flow rate 5 ml/s), and biphasic for protocol 3 (flow rates 5 and 4 ml/s); with saline flushing afterwards. Enhancement was measured in three central and six peripheral pulmonary arteries.
resultsThe mean attenuation value for pulmonary arteries was over 250 HU for all protocols. There was no difference between the attenuation levels with the protocols (p > 0.05). The percentage of pulmonary arteries exceeding optimal attenuation (> or =250 HU) showed that protocols 2 and 3 were 90-100% successful (p < 0.05).
conclusionThe use of proper injection-related factors during CTPA, such as a low trigger level and a high flow rate with saline injection following a decreased CM volume (55 ml or 50 ml), will enable adequate pulmonary artery contrast enhancement.
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