BACKGROUND The use of CO2 or conventional erbium laser ablation or more recent nonablative laser photothermolysis for skin rejuvenation is associated with significant disadvantages. OBJECTIVE The objective was to assess the efficacy of the erbium:YAG laser (2,940 nm) using the "ablative" fractional resurfacing mode to improve photodamaged skin. METHODS A total of 28 patients, 27 women and 1...

A simple procedure is developed to determine the Froude number Fr, the effective power index for thermal conduction n, the ablation-front thickness L0 , the ablation velocity Va , and the acceleration g of laser-accelerated ablation fronts. These parameters are determined by fitting the density and pressure profiles obtained from one-dimensional numerical simulations with the analytic isobaric ...

BACKGROUND Open thyroidectomy is conventionally performed at the anterior side of neck, which is a body part with a comparatively great degree of open exposure; due to this, postoperative scarring may cause distress in patients. We aimed to compare the effects of ablative and nonablative fractional laser treatments on thyroidectomy scars. We examined medical records in a retrospective manner an...

BACKGROUND Recently, photodynamic therapy (PDT) has been shown to be an effective first-line treatment for actinic keratosis (AK). However, a major limitation of PDT is the long incubation time required to allow penetration of the photosensitizer. OBJECTIVE The aim of this study was to assess if pretreatment with an ablative carbon dioxide (CO2) fractional laser can reduce the incubation time...

Percutaneous ablative methods guided by imaging techniques are considered nowadays curative treatment for early HCC in patients who are not candidates for liver transplantation and surgical resection. The final goal of all ablative treatments is to achieve complete destruction of neoplastic tissue by disruption of tumor vascularity. The best way to demonstrate the efficacy of any ablative metho...

BACKGROUND Combination laser treatments can potentially increase the effectiveness of treatment without the additional downtime associated with another procedure. OBJECTIVE To assess the effectiveness and safety of combining non-ablative fractional treatments with optimized intense pulsed light. METHODS AND MATERIALS Ten subjects (Group A) received full face treatments with a non-ablative f...

INTRODUCTION Fractional ablative and non-ablative lasers have gained popularity in the treatment of acne scars and rhytids due to their efficacy and improved tolerability. Plasma and radio frequency (RF) have also emerged as methods for ablative or non-ablative energy delivery. We report preliminary experience with a novel fractional micro-plasma RF device for the treatment of facial acne scars...

BACKGROUND Limited data describe the prognosis after stereotactic ablative radiotherapy for lung metastases arising from colorectal cancer. Thus, we evaluated treatment outcomes of stereotactic ablative radiotherapy for those patients. METHODS The study involved patients received stereotactic ablative radiotherapy for one to three lung metastases arising from colorectal cancer at a single ins...

BACKGROUND AND AIMS Extracted-overlay fusion imaging is a novel computed tomography/magnetic resonance-ultrasonography (CT/MR-US) imaging technique in which a target tumor with a virtual ablative margin is extracted from CT/MR volume data and synchronously overlaid on US images. We investigated the applicability of the technique to intraoperative evaluation of radiofrequency ablation (RFA) for ...