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 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.

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. With the improved diagnostic image quality, PE could also potentially be ruled out faster allowing patients to possibly be discharged sooner and given peace of mind. Moreover, lowering kV from to also considerably reduces radiation, given that angiosccanner dose delivered to the patient is proportional to the square of the voltage at an identical mAs.

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Article medicale Tunisie, Article medicale Embolie pulmonaire aiguë , scanner multicoupe

If you want to subscribe to this journal, see our rates You can purchase this item in Pay Per View: Top of the page – Article Outline. Objective evidence would be when a region of interest ROI placed at the pulmonary artery indicates a density higher than HU.


CTPA for the diagnosis of acute pulmonary embolism during pregnancy. Hantous-Zannad abI.

Pulmonary Embolism Diagnosis in Pregnancy: How Bicêtre Hospital Overcomes Imaging Challenges

Grossesse et embolie pulmonaire: It almost completely dilutes the contrast agent coming from the superior vena cava SVC. 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.

For further information, please refer to the original article: Does pregnancy affect vascular enhancement in patients undergoing CT pulmonary angiography? Look at the heart! angoscanner

When PE is suspected, a computed tomography CT scan may be recommended in some countries as a quick response. It is important to carefully examine pulmonary angiographies in search of cardiac abnormalities that can cause chest symptoms unrelated to pulmonary embolism. This is why timing is considered so important: Feuillets de Radiologie ; 47 3: 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.

Conversely, when voltage is increased, the dominant Compton Effect reduces contrast. You can move this window by clicking on the headline. In addition to the survey, the department also retrospectively analyzed examinations and the angooscanner in which they were performed. When voltage is decreased, the photoelectric effect dominates and contrast increases.


Prise en charge des principales urgences thoraciques et abdominales durant la grossesse. Angioscanner, Embolie pulmonaire, Anomalies cardiaques.

Case Report – Page 2 – MJEM ONLINE

This is known as the Valsalva Maneuver. Baccouche abJ. Over-diagnosis may also result in treatments that might be dangerous for the unborn child and the mother.

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Thorac Imaging ; 22 2. Image quality and radiation exposure at pulmonary CT angiography with or kVp protocol: Lastly, conventional imaging modalities are more complicated when used for pregnant patients.