To review the MDCT pulmonary angiography protocols for the diagnosis of pulmonary embolism and the major optimization strategies available.
Multidetector computed tomography (MDCT) has become the gold standard technique for the diagnosis of pulmonary embolism (PE).
it is important to highlight that the wide availability and high performance of MDCT pulmonary angiography has led to a significant increase in the number of scans performed with the consequent increase in radiation exposure and contrast in the population.
As a result,
the development of optimized protocols to rule out PE that decrease the radiation and...
Imaging findings OR Procedure details
Optimization strategies 1.
Patient Selection Proper selection of the patients that are going to undergo the MDCT pulmonary angiography to rule out PE is the best tool to avoid unnecessary tests and implement the most appropriate acquisition protocol.
It has to obtain enough quality images with doses as low possible of radiation and contrast. Main factors to assess -Clinical indication of the study -Body habitus A) Clinical indication of the study The actual prevalence of PE in patients with...
-The purpose of the optimization MDCT pulmonary angiography protocols to rule out PE is to decrease of radiation and contrast dose administered to the patient while maintaining the diagnostic quality of the study. -There are several strategies allowing optimization of the protocol focusing on patient selection,
technical parameter modification or interpretation of the study: 1) Patient Selection - Most important measure: To avoid unnecessary testing. Body habitus: Determines which group of...
(2008) Guidelines on the diagnosis and management of acute pulmonary embolism.
The Task Force for the Diagnosis and Management of Acute Pulmonary Embolism of the European Society of Cardiology (ESC).
European Heart Journal 29,
2276–2315 2.Bae KT.
(2010)Intravenous contrast medium administration and scan timing at CT:considerations and approaches.
Jul;256(1):32-61. 3.Bae KT,
Hildebolt CF. (2007) Effect of...