The relationships between cephalometric parameters and severity of obstructive sleep apnea.

Objective: To verify the relationships between cephalometric parameters and apnea hypopnea index (AHI) in snoring patients in Chiang Mai University Hospital.

Methods: Fifty patients who attend ENT snoring clinic, Faculty of Medicine, Chiang Mai University Hospital during 1 October, 2007 to 31 October, 2008 were enrolled. All subsequently underwent overnight polysomnography by SOMNOCHECK(®) V2.

Artifacts in mammography: ways to identify and overcome them.

High-quality mammography images enhance a radiologist's ability to interpret mammograms because they have greater sensitivity and specificity. Artifacts may create pseudo-lesions or mask abnormalities leading to misinterpretation. Familiarity with the numerous artifacts encountered will enable radiologists to provide accurate diagnoses.