Gene/Protein Disease Symptom Drug Enzyme Compound
Pivot Concepts:   Target Concepts:
Query: UMLS:C0149871 (deep vein thrombosis)
 12,364 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Percutaneous placement of an inferior vena cava (IVC) filter is indicated in patients affected by pulmonary embolism or proximal deep venous thrombosis when anticoagulation therapy is contraindicated or there is evidence of thromboembolic recurrence during anticoagulation. Several complications have been reported using IVC filters. Migration is a rare but known and potentially lethal complication of IVC filter placement. In this patient, an ALN IVC filter (ALN Implants Chirurgicaux Ghisonaccia, France) proximal migration occurred from the inferior cava vein to a zone just below the right atrium; it was associated with a complete 180 degrees rotation, and we describe here the procedure employed to successfully remove this filter.
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PMID:ALN inferior vena cava filter upside down rotation with chest caval migration in an asymptomatic patient. 2067 82

It has been reported that a reduction in tube kilovoltage during computed tomography (CT) angiography results in an average reduction of the effective radiation dose. Furthermore, a lower kilovoltage has been shown as a technique dose. However, there is no fundamental data in a low-kilovoltage protocol for CT venography. Thus, the purpose of this study was to investigate contrast enhancement, image noise, and radiation exposure with lower kilovoltage on CT images scanned using phantom of lower limbs and clinical CT images. In order to grasp the effective energy in each tube voltage of the equipment used, we determined the half-value layer using aluminum attenuation coefficient. The phantom of the lower was sealed with contrast agent that was adjusted in various CT values. We scanned this phantom at 80 kVp, 100 kVp, and 120 kVp settings, and evaluated the changes in CT value. We also compared CT values, CTDIvol, contrast enhancement, and radiation exposure with 100 kVp and 120 kVp in patients with suspected pulmonary embolism or deep venous thrombosis. We found the CT value increased 30 HU with 100 kVp settings, and contrast was also improved. A reduction of radiation exposure without deterioration of image quality would be possible by lowering the kilovoltage setting in CT venography.
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PMID:[Usefulness of low kilovoltage settings in computed tomography venography of lower limbs]. 2335 42

Inferior vena cava (IVC) filter placement is indicated for patients with pulmonary embolism and/or deep venous thrombosis when anticoagulation therapy is contraindicated. IVC filter placement, however, is not without complications. In this case, we noted crossing of the filter struts immediately after deployment of the ALN IVC filter (ALN Implants Chirurgicaux Ghisonaccia, France). The filter was then successfully removed.
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PMID:Crossed legs: an unexpected occurrence during an ALN filter placement. 2625 73