BACKGROUND A study was undertaken to determine if cephalometric radiographs could identify those who will benefit from nasal surgery in patients with a sleep apnoea hypopnoea syndrome (SAHS) and chronic nasal obstruction. METHODS Fourteen patients with SAHS were enrolled. Those with normal posterior airway space and mandibular plane to hyoid bone distances on preoperative cephalometric radiog...

OBJECTIVES We investigated difference of parameters of polysomnography, cephalometry and dynamic multi-detector computerized tomography (MD-CT) in wake and sleep states according to obesity. METHODS We evaluated 93 patients who underwent polysomnography and cephalometry. MD-CT was performed in 68 of these 93 patients. Fifty-nine and 34 patients were classified as obese and non-obese, with obe...

This study proposes a new contribution to solve the problem of automatic landmarks detection in three-dimensional cephalometry. 3D images obtained from CBCT (cone beam computed tomography) equipment were used for identification twelve landmarks. The proposed method is based on local geometry and intensity criteria skull structures. After step preprocessing binarization, algorithm segments into ...

Measurements by ultrasound of the biparietal diameter of the fetal head during pregnancy are a reliable guide to fetal growth. As a ready means of comparison with the normal we constructed from 4,170 measurements in 1,394 cases a curve showing the percentiles distribution of biparietal diameters for each week of gestation.

INTRODUCTION  Hyperplasia of the pharyngeal tonsil is one of the main causes of mouth breathing, and accurate diagnosis of this alteration is important for proper therapeutic planning. Therefore, studies have been conducted in order to provide information regarding the procedures that can be used for the diagnosis of pharyngeal obstruction. OBJECTIVE  To verify the correlation between nasopha...

In a previous communication, Robinson et al. (1973) compared the value of five methods of fetal monitoring in respect of their ability to differentiate between normal and growth-retarded pregnancies in a small series of patients. These tests included sonar biparietal cephalometry, 24 h urinary oestriol assays and determination of serum oxytocinase, total alkaline phosphatase and heat-stable alk...

Surgically assisted rapid palatal expansion (SARPE) is associated with postoperative cephalometric changes. In this study we analyse these changes in the sagittal plane in orthognathic patients undergoing SARPE followed by orthodontic treatment and Le Fort I, bilateral sagittal split osteotomy (BSSO), or bimaxillary surgery. This is a retrospective review of 50 patients (20 males, 30 females) u...

OBJECTIVE To explore the diagnostic accuracy of three-dimensional CT reconstruction and cephalometry in lateral skull base tumors. PATIENTS AND METHODS Fifty-eight patients with lateral skull base tumors were randomly divided into control group (n = 29, examined with conventional diagnostic technique) or study group (n = 29, examined with three-dimensional CT reconstruction and cephalometry)....

OBJECTIVE/HYPOTHESIS This study examined correlations between surgical recommendations based on either drug-induced sleep endoscopy (DISE) or common awake examination methods in patients with obstructive sleep apnea syndrome (OSAS). STUDY DESIGN Prospective, blinded, clinical trial at a university hospital. METHODS An otorhinolaryngologist designed surgical plans for patients with OSAS afte...