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an X ray of a vein injected with a radiopaque contrast medium (同)phlebogram
roentgenographic examination of veins

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出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2012/11/05 13:16:42」(JST)

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Venography (also called phlebography) is a procedure in which an x-ray of the veins, a venogram, is taken after a special dye is injected into the bone marrow or veins. The dye has to be injected constantly via a catheter, making it an invasive procedure. Normally the catheter is inserted by the groin and moved to the appropriate site by navigating through the vascular system.

Contrast venography is the gold standard for judging diagnostic imaging methods for deep venous thrombosis; although, because of its cost, invasiveness, and other limitations this test is rarely performed.^[1]

Venography can also be used to distinguish blood clots from obstructions in the veins, to evaluate congenital vein problems, to see how the deep leg vein valves are working, or to identify a vein for arterial bypass grafting.

Areas of the venous system that can be investigated include the lower extremities, the inferior vena cava, and the upper extremities.

References

^ Bates SM, Jaeschke R, Stevens SM, et al. (2012). "Diagnosis of DVT: Antithrombotic Therapy and Prevention of Thrombosis, 9th ed: American College of Chest Physicians Evidence-Based Clinical Practice Guidelines". Chest 141 (suppl 2): e383S. doi:10.1378/chest.11-2299. PMID 22315267.

External links

Baylor College of Medicine Venogram procedure page, retrieved November 4, 2006
WebMD Venogram procedure page, retrieved November 4, 2006

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English Journal

Intracerebral hemorrhage from cerebral venous thrombosis.

Pongmoragot J, Saposnik G.SourceStroke Outcomes Research Unit, Division of Neurology, Department of Medicine, St. Michael's Hospital, University of Toronto, 55 Queen St East, Suite 931, Toronto, M5C 1R6, Canada, PongmoragotJ@smh.ca.
Current atherosclerosis reports.Curr Atheroscler Rep.2012 Aug;14(4):382-9.
Cerebral venous thrombosis (CVT) is an uncommon cause of stroke with the incidence of 0.5 % from all strokes. The clinical presentation with cerebral hemorrhage constitutes a diagnostic challenge. Approximately one- third of CVT patients developed intracerebral hemorrhage (ICH). Associated factors
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Acute onset quadriplegia.

Rajasekharan C, Deepak M.SourceDepartment of Internal Medicine, Medical College Hospital, Thiruvanthapuram, Kerala, India.
BMJ case reports.BMJ Case Rep.2012 Jul 10;2012. pii: bcr0720114472. doi: 10.1136/bcr.07.2011.4472.
A 50-year-old man, with history of chronic alcohol intake was brought in a stuporous state to the emergency services having been found in that condition in his home the same day. Examination revealed the patient in an akinteic mute state with apparently normal cranial nerves, hypotonia and quadriple
PMID 22783005