نتایج جستجو برای: thermal lesion dimensions
تعداد نتایج: 463556 فیلتر نتایج به سال:
case: A 3.5-year-old girl presented with a 1-year history of a slow growing pigmented lesion on the dorsal aspect of her right foot. Physical examination revealed the presence of a pigmented patch with color distribution from pink to tan to dark brown, relatively well circumscribed and approximately 1.5 × 2cm with irregular borders, and especially a single dark central papule superimposed...
BACKGROUND The aim of the study was to analyse intraoral neurophysiological changes in patients with unilateral lingual nerve lesions as well as patients with Burning Mouth Syndrome (BMS) by applying a standardized Quantitative Sensory Testing (QST) protocol. METHODS The study included patients suffering from a peripheral lesion of the lingual nerve (n = 4), from BMS (n = 5) and healthy contr...
The ability to engineer the thermal conductivity of materials allows us to control the flow of heat and derive novel functionalities such as thermal rectification, thermal switching and thermal cloaking. While this could be achieved by making use of composites and metamaterials at bulk length-scales, engineering the thermal conductivity at micro- and nano-scale dimensions is considerably more c...
This case report describes the Indirect Pulp Treatment (IPT) of deep caries lesion in a permanent molar. A 16-year-old male patient reported discomfort associated with thermal stimulation on the permanent mandibular left first molar. The radiographs revealed a deep distal caries lesion, very close to the pulp, absence of radiolucencies in the periapical region, and absence of periodontal space ...
INTRODUCTION We report a case study of the application of contrast-enhanced ultrasonography (CEUS) for intraoperative monitoring of thermal ablation of a single focus of prostate cancer. METHODS A patient presented with biopsy-proven, solitary-focus, low-risk prostate cancer and was recruited into a clinical trial of interstitial laser thermal focal therapy. Multiparametric magnetic resonance...
Harmonic motion imaging for focused ultrasound (HMIFU) is a recently developed high-intensity focused ultrasound (HIFU) treatment monitoring method with feasibilities demonstrated in vitro and in vivo. Here, a multi-parametric study is performed to investigate both elastic and acoustics-independent viscoelastic tissue changes using the Harmonic Motion Imaging (HMI) displacement, axial compressi...
To study the neuropathic pain mechanism, various behavioral responses of animals in to different neuropathic models were considered. Adult male Sprague-Dawley rats weighing 230-280 g were used. Anesthesia was initially induced with pentobarbital I.P. (50 mg/kg). These models included (1): chronic constriction injury (CCI) by loose ligation of the sciatic nerve (2) Spared nerve injury (SNI) by a...
Introduction Volumetric ablation has been investigated in vivo demonstrating that a large and uniform ablation zone can be obtained rapidly (1-2). However, there exists no experimental demonstration to show that such volumetric lesion is indeed centered on a specific predefined target in 3D, i.e. no “gold standard” proof of absence of thermal buildup drift during the sonication (3). The effecti...
BACKGROUND The purpose of this study was to assess the acute ablative characteristics of transurethral convective water vapor (steam) using the Rezūm(®) system in men with benign prostatic hyperplasia through histologic and radiographic studies. METHODS Seven patients were treated with transurethral intraprostatic injections of sterile steam under endoscopic visualization followed by previous...
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