Publications by authors named "Velihan Cayhan"

Introduction: Voxel-based dosimetry offers improved outcomes in the treatment of hepatocellular carcinoma (HCC) with transarterial radioembolization (TARE) using glass microspheres. However, the adaptation of voxel-based dosimetry to resin-based microspheres has been poorly studied, and the prognostic relevance of heterogeneous dose distribution remains unclear. This study aims to explore the use of dose-volume histograms for resin microspheres and to determine thresholds for objective metabolic response in HCC patients treated with resin-based TARE.

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Introduction: The anconeus epitrochlearis (AE) muscle is an accessory muscle located between the medial cortex of the olecranon and the inferior surface of the medial epicondyle, posterior to the ulnar nerve. This muscle may compress the ulnar nerve causing a clinical neuropathy. We aimed to determine the gender and side characteristics of the AE muscle in patients who underwent elbow magnetic resonance imaging (MRI) and report its prevalence in a Turkish population.

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Objective: To investigate the association between epicardial and pericoronary adipose tissue thicknesses measured with computed tomography (CT) and severity of COVID-19 infection.

Methods: We recruited 504 patients admitted with RT-PCR-proven diagnosis of COVID-19 infection and underwent simultaneous Chest CT scanning. Epicardial adipose tissue thickness (EAT) and pericardial adipose tissue thickness (PCAT) were measured by CT.

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Objectives: The aim of this study is to evaluate the safety and efficacy of the novel bidirectional cannula that ensures stable distal perfusion compared to conventional cannula in patients undergoing femoral arterial cannulation for cardiopulmonary bypass (CPB).

Methods: During a 1-year period, 64 patients undergoing surgery via peripheral cannulation were prospectively randomized to receive 19 F bidirectional (Biflow™, LivaNova, Italy) or 19 F conventional (HLS Peripheral cannula, Getinge Group™, Germany) cannula with 6 F downstream line (Bicakcilar™, Turkey) for femoral artery cannulation. The primary outcome included the efficacy (adequacy of antegrade/retrograde comparative flow via cannula measured by doppler ultrasonography) and the secondary outcome was the safety (early/late complications and adverse events).

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