Computerized Dead-Space Volume Measurement of Face Masks Applied to Simulated Faces.

Background: The dead-space volume (VD) of face masks for metered-dose inhaler treatments is particularly important in infants and young children with asthma, who have relatively low tidal volumes. Data about VD have been traditionally obtained from water displacement measurements, in which masks are held against a flat surface. Because, in real life, masks are placed against the face, VD is likely to differ considerably between masks depending upon their contour and fit.

Abrupt tonsillar hemorrhage from a metastatic hemangiosarcoma of the breast: case report and literature review.

We describe a case of primary breast hemangiosarcoma with tonsillar metastasis that manifested as a profuse oropharyngeal hemorrhage. The patient was a 54-year-old woman who presented to the emergency department with oral bleeding. A thorough examination revealed a distorted morphology of the left tonsil and a hemorrhage originating from it.

The role of FDG-PET/CT imaging in head and neck malignant conditions: impact on diagnostic accuracy and patient care.

Background: To assess the value of positron emission tomography/computed tomography (PET/CT) with 18F-Fluorodeoxyglucose (FDG) in patients with head and neck carcinoma as compared with PET and conventional imaging alone, and to assess the impact of PET/CT on further clinical management.

Study Design: Prospective nonrandomized study.

Setting: Ninety patients with head and neck tumors had 107 PET/CT examinations.

Fluorine-18 fluorodeoxyglucose positron emission tomography/computed tomography imaging in patients with carcinoma of the nasopharynx: diagnostic accuracy and impact on clinical management.

Purpose: To assess the value of (18)F-fluorodeoxyglucose (FDG) positron emission tomography/computed tomography (PET/CT) in patients with nasopharyngeal carcinoma as compared with PET and conventional imaging (CI) alone, and to assess the impact of PET/CT on further clinical management.

Methods And Materials: Thirty-three patients with nasopharyngeal carcinoma had 45 PET/CT examinations. The study was a retrospective analysis.

Fluorodeoxyglucose-positron emission tomography/computed tomography imaging in patients with carcinoma of the larynx: diagnostic accuracy and impact on clinical management.

Objectives: The objectives of this study were to assess the value of F-fluorodeoxyglucose (FDG) positron emission tomography/computed tomography (PET/CT) in patients with carcinoma of the larynx as compared with PET and CT alone and to assess the impact of PET/CT on further clinical management.

Study Design: This was a prospective, nonrandomized study.

Materials And Methods: Forty-two patients with laryngeal cancer had 51 PET/CT examinations.