Thromboembolic Disease

Garg, Kavita D.; Kemp, Jennifer; Wojcik, Dennis; Hoehn, Sebastian; Johnston, Robert J.; Macey, Loren C.; Barón, Anna E.

doi:10.2214/ajr.175.4.1750997

Cited by 131 publications

(6 citation statements)

References 17 publications

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“…Since the advent of MDCT, the diagnostic ability of CT venography to detect DVT in the lower extremities was reported to be comparable to Doppler sonography (30-32). These findings were mainly based on the significant difference in attenuation between the deep vein and the perivenous muscle.…”

Section: Discussionmentioning

confidence: 99%

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Evaluation of Deep Vein Thrombosis with Multidetector Row CT after Orthopedic Arthroplasty: a Prospective Study for Comparison with Doppler Sonography

Byun

Kim

et al. 2008

Korean J Radiol

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ObjectiveThis prospective study evaluated the ability of indirect 16-row multidetector CT venography, in comparison with Doppler sonography, to detect deep vein thrombosis after total hip or knee replacement.Materials and MethodsSixty-two patients had undergone orthopedic replacement surgery on a total of 30 hip joints and 54 knee joints. The CT venography (scan delay time: 180 seconds; slice thickness/increment: 2/1.5 mm) and Doppler sonography were performed 8 to 40 days after surgery. We measured the z-axis length of the beam hardening artifact that degraded the image quality so that the presence of deep vein thrombosis couldn't be evaluated on the axial CT images. The incidence and location of deep vein thrombosis was analyzed. The diagnostic performance of the CT venograms was evaluated and compared with that of Doppler sonography as a standard of reference.ResultsThe z-axis length (mean±standard deviation) of the beam hardening artifact was 4.5 ± 0.8 cm in the arthroplastic knees and 3.9 ± 2.9 cm in the arthroplastic hips. Deep vein thrombosis (DVT) was found in the popliteal or calf veins on Doppler sonography in 30 (48%) of the 62 patients. The CT venography has a sensitivity, specificity, positive predictive value, negative predictive value and accuracy of 90%, 97%, 96%, 91% and 94%, respectively.ConclusionThe ability of CT venography to detect DVT was comparable to that of Doppler sonography despite of beam hardening artifact. Therefore, CT venography is feasible to use as an alternative modality for evaluating postarthroplasty patients.

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Section: Discussionmentioning

confidence: 99%

“…The importance of an isolated calf vein DVT as the cause of a clinically important pulmonary embolism or persistent lower extremity symptoms has been a subject of considerable debate in the medical literature (30). According to Wang et al, a calf vein DVT after TKA disappears spontaneously with time (12).…”

Section: Discussionmentioning

confidence: 99%

Evaluation of Deep Vein Thrombosis with Multidetector Row CT after Orthopedic Arthroplasty: a Prospective Study for Comparison with Doppler Sonography

Byun

Kim

et al. 2008

Korean J Radiol

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“…In this method, known as combined CTA and CTV, following pulmonary CTA applied for PE, 3-5 min after starting the injection of contrast dye, the venous system between the diaphragm and the popliteal area is scanned at 5-10 mm slice thickness and 1-5 cm slice intervals [2, 6]. Different studies have reported sensitivity of this method in respect of DVT as 89-100% and specificity as 94-100% [2, 6, 10]. …”

Section: Discussionmentioning

confidence: 99%

DIAGNOSTIC IMAGING The place of indirect venography tests after pulmonary computed tomography angiography in the diagnosis of pulmonary thromboemboli

Karaoglu

Tertemiz

Yılmaz

et al. 2014

kitp

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AimTo investigate the effectiveness of indirect computed tomography (CT) venography applied after pulmonary CT angiography to patients with suspected pulmonary embolism.Material and methodsThe study comprised 80 patients at high/moderate risk of pulmonary embolism (PE) according to the clinical findings. Computed tomography venography (CTV) was performed 3-3.5 minutes after taking pulmonary CTA images. Color Doppler ultrasonography (CDUS) of the lower extremities was applied to all patients before pulmonary CTA or within 24 hours after CTA.ResultsPulmonary embolism was determined in a total of 19 patients (23%). Six patients had deep venous thrombosis on CTV examination even though the CDUS findings were normal. Accepting color Doppler ultrasonography findings as the gold standard, the sensitivity of CTV in determining deep vein thrombosis (DVT) was found to be 100%, specificity 91%, positive predictive value 60%, negative predictive value 100%, likelihood of giving a positive result 11.1, and likelihood of giving a negative result 0. There was a statistically significant good degree of correlation between the two methods (r = 0.741, p < 0.001).ConclusionsComputed tomography venography examination applied after pulmonary CTA is a fast imaging technique that has high diagnostic value and can be an alternative to CDUS, especially when CDUS is insufficient in application and evaluation.

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“…CT venography in addition to CT pulmonary angiography is a relatively accurate method for evaluation of femoropopliteal venous thrombosis. In a comparative study between CTA-CTV and sonography, Garg et al [53] found a 100% sensitivity, 97% specificity, 100% negative predictive value, and 71% positive predictive value for CTV. Satisfactory or good quality CT venography examination was obtained in 97% of the studies.…”

Section: Computerized Tomography Angiography and Venographymentioning

confidence: 99%

Multimodality Imaging of the Peripheral Venous System

Gaitini

2006

International Journal of Biomedical Imaging

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The purpose of this article is to review the spectrum of image-based diagnostic tools used in the investigation of suspected deep vein thrombosis (DVT). Summary of the experience gained by the author as well as relevant publications, regarding vein imaging modalities taken from a computerized database, was reviewed. The imaging modalities reviewed include phlebography, color Doppler duplex ultrasonography (CDDUS), computerized tomography angiography (CTA) and venography (CTV), magnetic resonance venography (MRV), and radionuclide venography (RNV). CDDUS is recommended as the modality of choice for the diagnosis of DVT. A strategy combining clinical score and D-dimer test refines the selection of patients. Phlebography is reserved for discrepant noninvasive studies.

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Thromboembolic Disease

Cited by 131 publications

References 17 publications

Evaluation of Deep Vein Thrombosis with Multidetector Row CT after Orthopedic Arthroplasty: a Prospective Study for Comparison with Doppler Sonography

Evaluation of Deep Vein Thrombosis with Multidetector Row CT after Orthopedic Arthroplasty: a Prospective Study for Comparison with Doppler Sonography

DIAGNOSTIC IMAGING The place of indirect venography tests after pulmonary computed tomography angiography in the diagnosis of pulmonary thromboemboli

Multimodality Imaging of the Peripheral Venous System

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