Patients who received CDT returned the next day for follow-up pulmonary angiography
to assess whether additional therapy, defined as continued CDT beyond the standard 24 hours (with or without catheter repositioning or exchange) and/or mechanical or suction thrombectomy, were necessary.
That patient with the DVT diagnosis met none of the three YEARS criteria and had a D-dimer level of 480 ng/mL, and so did not undergo CT pulmonary angiography
, investigators said.
Results: Peripheral PE was diagnosed in small segmental branches in 184 (42%) cases on MDCT pulmonary angiography
. MPR detected peripheral PE in oblique oriented vessels.
Caption: Figure 3: Left parasagittal contrast enhanced computed tomography pulmonary angiography
. The arrow points to a large filling defect (pulmonary embolus) in the left pulmonary artery.
Devaraj, "Evolution of CT pulmonary angiography
: referral patterns and diagnostic yield in 2009 compared with 2006," Acta Radiologica, vol.
Overuse of computed tomography pulmonary angiography
in the evaluation of patients with suspected pulmonary embolism in the Emergency Department.
Rodger et al., "Computed tomographic pulmonary angiography
vs ventilation-perfusion lung scanning in patients with suspected pulmonary embolism: a randomized controlled trial," Journal of the American Medical Association, vol.
Vascular enhancement and image quality of MDCT pulmonary angiography
in 400 cases: comparison of standard and low kilovoltage settings.
Historically, ventilation-perfusion (V/Q) scintigraphy had been the noninvasive diagnostic imaging modality of choice, while conventional (catheter-based) pulmonary angiography
was regarded as the gold-standard.
Evidence of chronic thromboembolic pulmonary hypertension (CTEPH) was then confirmed by pulmonary angiography
and right heart catheterization.
Ordering CT pulmonary angiography
to exclude pulmonary embolism: Defense versus evidence in the emergency room.
Diagnosis may be established with help of chest x-ray, CT thorax, fiber optic bronchoscopy and if possible pulmonary angiography