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Apport du scanner multidétecteur dans le diagnostic de l’embolie pulmonaire: techniques de l’angioscanner thoracique. F. Fadhlaoui, M. Grissa, M. Souei. La sensibilité de la technique est bonne pour le diagnostic d’embolie pulmonaire jusqu’au niveau segmentaire (78 à 98 %) et la spécificité excellente (de 86 à. Objectif La pratique de l’angioscanner thoracique spiralé la performance des procédures diagnostiques d’embolie pulmonaire (EP).

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As a result, they proposed adjustment of these four parameters to improve pulmonary arterial contrast enhancement and, therefore, image quality. The researchers identified four fundamental factors that could improve contrast enhancement of the pulmonary arteries during CT angiography in pregnant women: Ann Fr Anesth Pulmknaire.

When voltage is decreased, the photoelectric effect dominates and contrast increases. Pulmonary Embolism Diagnosis in Pregnancy: As per the Law relating to information storage and personal integrity, you have the right to oppose art 26 of that lawaccess art 34 of that law and rectify art 36 of that law your pulmonaier data. Top of the page – Article Outline. Grossesse et embolie pulmonaire: The disadvantage is that if the acquisition window misses the point of maximum enhancement, the arteries will not be fully opacified and it becomes difficult to rule out pulmonary embolism.

CTPA for the diagnosis of acute pulmonary embolism during pregnancy. Over-diagnosis may also result in treatments that might be dangerous for the unborn child and the mother. Look at the heart! Outline Masquer le plan.


Pulminaire only is CTPA usually readily available, it also enables comprehensive assessment of the thorax and visualization of the thrombus to support differential diagnoses Fig. You may thus request that your data, should it be inaccurate, incomplete, unclear, outdated, not be used or stored, be corrected, clarified, updated or deleted.

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If you are a subscriber, please sign in ‘My Account’ at the top right of the screen. Image quality and radiation exposure at pulmonary CT angiography with or kVp protocol: The most frequent abnormalities were dilatation of the heart chambers and coronary calcifications.

This has potential to help reduce mortality rates and achieve better outcomes. Embolie Pulmonaire et Grossesse. Angioscanner, Embolie pulmonaire, Anomalies cardiaques. In addition to the survey, the department also retrospectively analyzed examinations and the conditions in which they were performed.

Moreover, foetuses are especially sensitive to dose. With a mortality rate at approximately 25 percent, pulmonary embolism PE is one of the leading causes of maternal death during pregnancy and postpartum. It is important to carefully examine pulmonary angiographies in search of cardiac abnormalities that can cause chest symptoms unrelated to pulmonary embolism. Computed tomography angiography, Pulmonary embolism, Heart abnormalities.

For further information, please refer to the original article: During CTPA, radiologists and radiographers subjectively evaluate injection quality to check for sufficient contrast enhancement of the pulmonary arteries. This is known as the Valsalva Maneuver. Objective evidence would be when a region of interest ROI placed at the pulmonary artery indicates a density higher than HU.

Feuillets de Radiologie ; 47 3: Conversely, when voltage is increased, the dominant Compton Effect reduces contrast. Pulmonary CT angiography protocol adapted to the hemodynamic effects of pregnancy. Identify all heart abnormalities discovered on chest computed tomography angiographies made for suspected pulmonary embolism PE.


The owners of this website hereby guarantee to respect the legal confidentiality conditions, applicable in France, and not to disclose this data to third parties. This is why timing is considered so important: Overcoming CT imaging limitations.

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Short acquisition times make it possible to target an event such as an arterial phase. Measurement of caval blood flow with MRI during respiratory maneuvers: Thorac Imaging ; 22 2. Hantous-Zannad abI.

Previous Article CV2i Editorial board. Diagnosing cases of PE presents particular challenges, however; pregnancy-related physiological changes have the potential to impair image quality to such an extent that a diagnosis may no longer be possible.

Evolution falsely relieving of angio scanner in the follow up..|INIS

Journal page Archives Contents list. Lastly, conventional imaging modalities are more complicated when used for pregnant patients. Prise en charge des principales urgences thoraciques et abdominales durant la grossesse. Pulmnoaire remarkable speed means that time is now also a key factor in pulmonary imaging. Does pregnancy affect vascular enhancement in patients undergoing CT pulmonary angiography? Researchers conducted a survey to find out whether other imaging facilities had a specific protocol for CT pulmonary angiography in pregnant women and how satisfied they were with the quality of these types of examinations.

Baccouche abJ.