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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Personal information regarding our website’s visitors, including their identity, is confidential. Outline Masquer le plan. As evidenced in the literature, CTPA in pregnant women tends to produce images of lower quality with weaker contrast enhancement compared with scans of non-pregnant patients.

Access to the PDF text. Pulmonary Embolism Diagnosis angioxcanner Pregnancy: Feuillets de Radiologie ; 47 3: Grossesse et embolie pulmonaire: Access to the text HTML.

Thorac Imaging ; 22 2. If you want to subscribe to this journal, see our rates You can purchase this item in Pay Per View: During CTPA, radiologists and radiographers subjectively evaluate injection quality to check for sufficient contrast enhancement of the pulmonary arteries. This has potential to help reduce mortality rates and achieve better outcomes. As a result, they proposed adjustment of these four parameters to improve pulmonary arterial contrast enhancement and, therefore, image quality.

Conversely, when voltage angioscaner increased, the dominant Compton Effect reduces contrast. Identify all heart abnormalities angiscanner on chest computed tomography angiographies made for suspected pulmonary embolism PE.

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This reduced quality of CTPA angiosxanner pregnant women is caused almost pulmonairw by pregnancy related physiological changes that can last for several weeks postpartum. Objective evidence would be when a region pulmnaire interest ROI placed at the pulmonary artery indicates a density higher than HU.


Journal page Archives Contents list. Hantous-Zannad abI. Pulmonary CT angiography protocol adapted to the hemodynamic effects of pregnancy. Prise en charge des principales urgences thoraciques et abdominales durant la grossesse. Ann Fr Anesth Reanim. Top of the page – Article Outline. You may thus request that your data, should it be inaccurate, incomplete, unclear, outdated, not be used pullmonaire stored, be corrected, clarified, updated or deleted.

Moreover, foetuses are especially sensitive to dose. 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 personal data. The most frequent abnormalities were dilatation of the heart chambers and coronary calcifications. Access to the full text of this article requires a subscription.

Does pregnancy affect vascular enhancement in patients undergoing CT pulmonary angiography?

Look at the heart! Diagnosing cases of PE presents particular challenges, however; pregnancy-related angiosvanner changes have the potential to impair image quality to such an extent that a diagnosis may no longer be possible.

Voltage affects image quality, particularly when contrast is involved.

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

For further information, please refer to the original article: This is why timing is considered so important: Phlmonaire Help Who are we? Over-diagnosis may also result in treatments that might be dangerous for the unborn child and the mother. Baccouche abJ. The researchers identified angioscanneg fundamental factors that could improve contrast enhancement of the pulmonary arteries during CT angiography in pregnant women: Lastly, conventional imaging modalities are more complicated when used for pregnant patients.


When PE is suspected, a computed tomography CT scan may be recommended in some countries as a quick response.

Sang Thrombose Vaisseaux

Not only is CTPA usually readily available, it also enables comprehensive assessment of the thorax and visualization of the thrombus to support differential diagnoses Fig.

Angioscanner, Embolie pulmonaire, Anomalies cardiaques. Overcoming CT imaging limitations.

Quality of CT pulmonary angiography for suspected pulmonary embolus in pregnancy. When voltage is decreased, the photoelectric effect dominates and contrast increases. With the improved diagnostic image quality, PE could also potentially be ruled out faster allowing patients to possibly ajgioscanner discharged sooner and given peace of mind. Short acquisition times make it possible to target an event such as an arterial phase.

Previous Article CV2i Editorial board. You can move this window by clicking on the headline. Pulmonaiee of caval blood flow with MRI during respiratory maneuvers: Moreover, lowering kV from to also considerably reduces radiation, given that the dose delivered to the patient is proportional to the square of the voltage at an identical mAs.

Results showed that very few institutions had a specific protocol and levels of satisfaction varied widely. With a mortality rate at approximately 25 percent, pulmonary embolism PE is one of the leading causes of maternal death during pregnancy and postpartum. Image quality and radiation exposure at pulmonary CT angiography with or kVp protocol: In addition to the survey, the department also retrospectively analyzed examinations and the conditions in which they angioscannner performed.