MR Imaging in Venous Thromboembolism
Effective therapy is available for venous thromboembolism, but can itself produce significant morbidity. Thus, an accurate diagnosis is mandatory. The clinical presentation and laboratory findings in pulmonary embolism (PE) are nonspecific; therefore, additional evaluation with imaging studies is essential. However, the most accurate imaging test (pulmonary angiography) is invasive, while noninvasive imaging tests (such as the ventilation-perfusion [V-Q] scan) have limited accuracy. Accordingly, there have been persistent attempts to develop a less invasive, more accurate imaging procedure which could replace either the V-Q scan or the pulmonary angiogram. In addition, the use of noninvasive lower extremity venous imaging to evaluate patients who present with respiratory symptoms has become widespread.
KeywordsPulmonary Embolism Deep Venous Thrombosis Pulmonary Angiography Pulmonary Angiogram Peripheral Pulmonary Artery
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