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    The cutoff value for the diameter of the saphenous vein in predicting the presence of venous insufficiency
    (2018) Durmaz, Mehmet Sedat; Ozbakir, Bora; Cebeci, Hakan; Arslan, Serdar; Durmaz, Funda Gokgoz; Arslan, Fatma Zeynep; Tekin, Ali Fuat
    Aim: In this study aimed to investigate the relationship between saphenous vein diameters and reflux and to present their sensitivity and specificity values in predicting venous insufficiency (VI).Material and Methods: This study included 162 symptomatic patients admitted to our radiology clinic with complaints of VI in 317 of their lower extremities (LEs) and 67 asymptomatic healthy volunteers with their 134 LEs having no varicose veins. A total of 451 LEs were evaluated for VI with Doppler ultrasonography (US) in the standing position. Results: The saphenous vein diameters were higher at a statistically significant level in the symptomatic patient group than in the asymptomatic healthy volunteers (p<0.001). They were also higher at a statistically significant level in the LEs with clinically significant reflux (p<0.001). A cutoff value of a 5.35 mm diameter for insufficiency in great saphenous vein (GSV) led to 80.20% sensitivity and 79.20% specificity; a 4.85 mm diameter for insufficiency in small saphenous vein (SSV) led to 82.10% sensitivity and 83.60% specificity. Conclusions: A GSV diameter of > 5.35 mm and a SSV diameter of > 4.85 mm are the best cutoff values, which could be used as an additional parameter, for predicting VI with high sensitivity and specificity.
  • Küçük Resim Yok
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    Superb microvascular imaging in the visualization of recanalization in deep vein thrombosis
    (EDIZIONI MINERVA MEDICA, 2018) Durmaz, Mehmet S.; Ozbakir, Bora; Cebeci, Hakan; Arslan, Serdar; Dagli, Mustafa; Arslan, Fatma Z.; Tekin, Ali F.
    BACKGROUND: The aim of this study was to evaluate the use of the superb microvascular imaging (SMI) technique in the detection of recanalization in deep vein thrombosis (DVT) and to compare the diagnostic value of SMI with that of conventional Doppler imaging (CDI) techniques. METHODS: The study consisted of 30 patients who were admitted to hospital within the first 72 h of a first episode of acute DVT. In total, 78 venous segments of 38 lower extremities were assessed. In all the segments, the venous lumen was totally occluded, intraluminal vascular signals were not detected by any of four vascular imaging techniques (color Doppler [CD], power Doppler [PD], color SMI [cSMI], and monochrome SMI [mSMI]) on admission. All the patients were treated with a standard treatment protocol (low-molecular weight heparin for a minimum of 5 days, followed by treatment with a vitamin K antagonist). One month after the treatment was initiated, grading systems that allowed a qualitative comparison of recanalized blood flow (BF) were applied to assess the performance of the four vascular imaging techniques in the detection of recanalization in the thrombosed venous segments. The diagnostic performances of the four imaging techniques in the detection of recanalized BF were statistically compared. RESULTS: The diagnostic performance of the imaging techniques in the detection of recanalized BF in the thrombosed venous segments was found as follows: mSMI > cSMI > PD > CD. CONCLUSIONS: SMI is a promising and effective method for evaluating the treatment efficacy and may provide more accurate information than CD and PD on recanalized BF in DVT.