MR Venography with True Fast Imaging with Steady-state Precession for Suspected Lowerlimb Deep Vein Thrombosis

Cantwell, Colin P.; Cradock, Andrea; Bruzzi, John F.; Fitzpatrick, Patricia; Eustace, S; Murray, John

doi:10.1097/01.rvi.0000242502.40626.53

Cited by 54 publications

(46 citation statements)

References 27 publications

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“…Alternative techniques have been demonstrated (16,(24)(25)(26), some of which have shown promising results in the diagnosis of deep vein thrombosis (26,27).…”

mentioning

confidence: 99%

Non‐contrast‐enhanced vascular magnetic resonance imaging using flow‐dependent preparation with subtraction

Priest

Graves

Lomas

2011

Magnetic Resonance in Med

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Recent concerns over contrast agent safety have encouraged new developments in non-contrast-enhanced vascular imaging techniques. This work investigates the potential for imaging both arteries and veins with vascular anatomy by nonenhanced static subtraction angiography (VANESSA), a method using controllable flow suppression together with subtraction of bright-and dark-blood images. The lower legs of eight healthy volunteers and three patients were imaged using a modified motion-sensitized driven equilibrium preparation, with three-dimensional balanced steady-state free precession readout. The vascular signal decreased with increasing motion-suppression gradient amplitude, and was suppressed when the velocity-encoding parameter was (approximately) less than the measured flow velocity. Selected pairs of images were subtracted to depict vessels with either fast flow (e.g. arteries), slow flow (e.g. veins), or both. Several methodological modifications improved image quality and reduced the background signal from static tissues. Subjectively assessed image quality in volunteers was rated as excellent for 56/64 arterial segments, and good or excellent for 35/64 veins. In conclusion, VANESSA enables rapid noncontrast-enhanced imaging of arteries and veins, combining information on both morphology and flow. This study demonstrates good technical performance in volunteers and evaluation in patients with vascular disease is warranted. Magn Reson Med 67:628-637,

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“…Alternative techniques have been demonstrated (16,(24)(25)(26), some of which have shown promising results in the diagnosis of deep vein thrombosis (26,27).…”

mentioning

confidence: 99%

Non‐contrast‐enhanced vascular magnetic resonance imaging using flow‐dependent preparation with subtraction

Priest

Graves

Lomas

2011

Magnetic Resonance in Med

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“…Images of the two techniques were read two to three weeks apart to avoid recollection bias on the individual level. The deep veins visualized at the different coil positions of each limb (i.e., IVC, common iliac, external iliac, common femoral, femoral, popliteal, anterior tibial, posterior tibial, and peroneal veins) were assessed on a three-point scale (1 ¼ completely seen, 2 ¼ partially seen, or 3 ¼ not seen) (11,12). The presence of venous anomalies and artifacts were also recorded.…”

Section: Image Assessmentmentioning

confidence: 99%

“…Four patients had DVT of the right limb, and mean symptom duration was 8.3 days (range, [2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20]. Figure 3 shows examples of patients with DVT and direct and indirect findings of venous thrombosis in calf, knee, and thigh in corresponding images of the two MRI techniques.…”

Section: Dvt Detectionmentioning

confidence: 99%

Visualization of deep veins and detection of deep vein thrombosis (DVT) with balanced turbo field echo (b‐TFE) and contrast‐enhanced T1 fast field echo (CE‐FFE) using a blood pool agent (BPA)

Enden¹,

Storås²,

Negård³

et al. 2010

Magnetic Resonance Imaging

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Purpose: To assess image quality, vessel visualization, preliminary diagnostic properties, and interobserver variability of a novel balanced turbo field echo (b-TFE) sequence and contrast-enhanced T1 fast field echo (CE-FFE) sequence with blood pool agent (BPA). Materials and Methods:A total of 15 healthy volunteers and six patients with ultrasound-verified proximal deep vein thrombosis (DVT) were examined from the inferior vena cava (IVC) to the proximal calf veins.Results: The great majority of deep veins were completely visualized on both sequences. In healthy volunteers the IVC was completely visualized in five b-TFE and 11 CE-FFE scans, and partially in seven b-TFE and four CE-FFE scans (P ¼ 0.008). Poorest image quality was in the pelvis. Contrast-to-noise ratio (CNR) was higher on b-TFE compared to CE-FFE, with significant difference in calf images (P ¼ 0.036). Sensitivity was 100% for proximal DVT with both methods. Specificity was 70% (CE-FFE) and 80% (b-TFE) for proximal femoral DVT; 100% in distal femoral. Interobserver reliability was kappa 1.0 (b-TFE), 0.9 (CE-FFE) for proximal, and overall poor for distal DVT.Conclusion: Contrast-enhancement did not add valuable information in visualizing deep veins of the lower limbs compared to b-TFE, though the IVC was slightly better visualized. Diagnostic properties and interobserver reliability of both sequences were good for proximal DVT and poor for distal DVT.

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“…By Hoffer E. K. et al [18] MRV is effective and accurate, with a sensitivity and specificity for iliac and femoral DVT approaching 100 % compared with venography and a 92 % sensitivity in detecting isolated calf-vein thrombus. A variety of sequences can be utilized, including spin-echo, gradient-recalled echo, and gadolinium-enhanced images [21,22,23].…”

Section: Magnetic Resonance Venographymentioning

confidence: 99%

Modern Methods of Deep Vein Thrombosis Diagnosis: Literature Review

Zostautiene

Žvinienė

Kiudelis

2016

Medicinos Teorija Ir Praktika

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SANTRAUKAReikšminiai žodžiai: giliųjų venų trombozė, kompresinis ultragarsinis tyrimas, daugiasluoksnė kompiuterinė tomografija, magnetinis rezonansas, venografija. Venų tromboembolija (VTE) -tai dvi tarpusavyje susijusios patologijos: plaučių embolija (PE) ir giliųjų venų trombozė (GVT). Giliųjų venų trombozė išlieka svarbi sveikatos sistemos problema, kadangi yra susijusi su komplikacijomis, turinčiomis aukštą sergamumo ir mirtingumo rodiklį: ūminė ir lėtinė plaučių embolijos, plautinė hipertenzija ir potrombozinis sindromas. Paprastai GVT prasideda blauzdos venose, bet gali tęstis proksimaliau ir sąlygoti gyvybei pavojingą plaučių emboliją. Klinikinėje praktikoje labai svarbi šios ligos profilaktika ir gydymas, tad aktuali yra ankstyva ir tiksli diagnozė, įvertintant tikslią GVT vietą ir apimtį. Apibendrinus literatūros duomenis, straipsnyje apžvelgiami radiologinės diagnostikos metodai kojų giliųjų venų trombozei nustatyti, radiologinių tyrimų privalumai ir trūkumai. ABSTRACTKey words: deep vein thrombosis, compression ultrasound, multidetector computed tomography, magnetic resonance, venography. Venous thromboembolism consists of two related conditions: deep vein thrombosis and pulmonary embolism. One-third venous thromboembolism cases are manifested as pulmonary embolism and two-third present with deep vein thrombosis alone. Deep venous thrombosis remains an important health care problem as it is related with the complications having a high morbidity and mortality rate: acute and chronic pulmonary embolism, pulmonary hypertension and post-thrombotic syndrome. It is considered the third most common acute cardiovascular disease after ischemic heart disease and stroke and effects millions of people worldwide. Conventional venography was the gold standard in deep vein thrombosis diagnosis and the only imaging test for a long time in order to specify the suspected deep vein thrombosis in legs, pelvis or inferior vena cava [1,2]. Presently contrast x-ray venography is applied very seldom in conventional medical practice. Contrast x-ray venography is particularly helpful for assessing recurrent acute deep vein thrombosis in patients with a prior history of deep vein thrombosis in whom venous anatomy is often complex and difficult to evaluate using other methods [3] or when to remove an inferior vena cava filter. Conventional venography is presently replaced with non-invasive or less invasive radiological examination methods: the firstchoice method is ultrasound, but there are also other ones -computed tomography venography and magnetic resonance venography. Ultrasound is the imaging examination of choice for suspected lower extremity deep venous thrombosis. Ultrasound has high sensitivity (range, 93.2 %-95.0 %; pooled sensitivity, 94.2 %) and high specificity (range, 93.1 %-94.4 %; pooled specificity, 93.8 %) for diagnosing proximal (thigh) deep vein thrombosis and much lower sensitivity (range, 59.8 %-67.0 %; pooled sensitivity, 63.5 %) for diagnosing distal (calf ) and pelvic veins thrombosis. Compression ultra...

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MR Venography with True Fast Imaging with Steady-state Precession for Suspected Lowerlimb Deep Vein Thrombosis

Cited by 54 publications

References 27 publications

Non‐contrast‐enhanced vascular magnetic resonance imaging using flow‐dependent preparation with subtraction

Non‐contrast‐enhanced vascular magnetic resonance imaging using flow‐dependent preparation with subtraction

Visualization of deep veins and detection of deep vein thrombosis (DVT) with balanced turbo field echo (b‐TFE) and contrast‐enhanced T1 fast field echo (CE‐FFE) using a blood pool agent (BPA)

Modern Methods of Deep Vein Thrombosis Diagnosis: Literature Review

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