venography वाक्य
उदाहरण वाक्य
मोबाइल
- 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.
- Improvements on the diagnosis of cerebral venous sinus thrombosis in life were made with the introduction of venography in 1951, which also aided in the distinction from idiopathic intracranial hypertension, which has similar presenting signs and symptoms in many cases.
- For instance, " Magnetic resonance venography " ( MRV ) is achieved by exciting a plane inferiorly while signal is gathered in the plane immediately superior to the excitation plane, and thus imaging the venous blood which has recently moved from the excited plane.
- It is still not clear whether magnetic resonance venography, venous angiography, or Doppler sonography should be considered the gold standard for the diagnosis of CCSVI . Others have stated that magnetic resonance venography is a valid measure which has advantages over Doppler including the fact that results are more operator-independent.
- It is still not clear whether magnetic resonance venography, venous angiography, or Doppler sonography should be considered the gold standard for the diagnosis of CCSVI . Others have stated that magnetic resonance venography is a valid measure which has advantages over Doppler including the fact that results are more operator-independent.
- Among these main diagnostic tests, other radiologic tests such as excretory urography, positron-emission tomography ( PET ) scanning, ultrasonography, arteriography, venography, and bone scanning can also be used to aid in the evaluation of staging renal masses and to differentiate non-malignant tumours from malignant tumours.
- Computed tomography, with radiocontrast in the venous phase ( " CT venography " or CTV ), has a detection rate that in some regards exceeds that of MRI . The test involves injection into a vein ( usually in the arm ) of a radioopaque substance, and time is allowed for the bloodstream to carry it to the cerebral veins-at which point the scan is performed.
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