Active clinical trials for "Dilatation, Pathologic"

The objective of this study was to identify and build an algorithm through an imaging process using a support vector machine (SVM) with the tomography variables of cases with, KC, highly susceptible corneas to ectasia (HSCE), and healthy corneas and to compare this algorithm to BAD-D (Belin_Ambrosio Display) and PRFI (Pentacam Random Forest Index). The study included 148 eyes with KC, 351 with healthy corneas, and 88 eyes with HSCE.

The goal of this observational prospective study is to assess the change in Dilapan-S rod diameters using transvaginal ultrasound over a period of 12 hours in term women undergoing induction of labor.

The overall objectives were to investigate if characteristic dimensions for tissue and vessels determined from measured bioimpedance spectra would provide the same values as dimensions determined from MR images of the upper arm and verify that temporal variations of impedances could be converted to blood pressure.

To Investigate the Prevalence of Capsular Bag Distention Syndrome To Analyze Influencing Factors of Capsular Bag Distention Syndrome

The aim of the study is to assess if venous distension in patients with aneurysmatic arteriopathy is higher compared to patients with peripheral arterial occlusive disease (PAOD) and in controls.

Mammograms performed at the Diagnostic Imaging Department of the "Instituto Brasileiro de Controle do Câncer" (IBCC - Brazilian Cancer Control Institute) will be prospectively evaluated. Patients who present a solitary dilated duct visualized by mammography will be submitted to breast ultrasonography. In case of detection of lesion, a percutaneous biopsy will be performed.

Ectasia after refractive surgery is a relatively rare complication which can lead to sight-threatening complications if not detected and treated in time. It is important to continue our quest to improve our methods of identifying absolute and relative risk factors of ectasia following various keratorefractive surgical procedures.

The study hypothesis was that epidural fentanyl may accelerate the dilation of the cervix and possibly result in a shorter duration of vaginal delivery.

Compare endoscopic papillary balloon dilatation vs. endoscopic sphincterotomy for bile duct stones in: when sphincterotomy is difficult (periampullary diverticulum, prior sphincterotomy or Billroth II anastomosis) when there is distal CBD tapering.

This study is designed to treat benign ureteral stricture with balloon dilatation through prospective multicenter studies. It aims to indications, procedure standards, and therapeutic effects of balloon dilation, and provide further guidance for endoscopic treatment of benign ureteral stricture.