A survey and monitoring of the spectropolarimetric characteristics of hot stars over the entire visible wavelength range has been carried out over the past 8 years using the HPOL instrument at the Pine Bluu Observatory. Data from these projects is being used to derive physical characteristics of circumstellar envelopes. Quantitative modeling of the polarization, in combination with optical inte...

OBJECTIVE This study aims to investigate correlations between the effects of O3 target-injection treatment and imaging localization in lumbar intervertebral disc protrusion (LIDP). METHODS 164 LIDP patients were divided into 3 groups: group A, the protrusion located at level I-III, region 1-2, domain a-b; group B, the protrusion located at level I-III, region 1-2, domain c-d; group C: the pro...

AIM Gene expression profiles for intervertebral disc (IVD) cells treated with different osmolarities were compared to identify key genes associated with intervertebral disc diseases. MATERIALS AND METHODS Microarray data was downloaded from Gene Expression Omnibus (GEO) database and pre-processed using package of R. Gene co-expression was determined with Pearson correlation coefficient. Inter...

Ninety general practitioners responded to a questionnaire about the role of radiology in patients with low back pain. Their clinical indications for requesting radiographs were mostly in agreement with the opinions of radiologists, but nearly 80% requested investigations for their own or patients' reassurance. Understanding of the terms used by radiologists was good, although 25% thought that a...

The diskal cyst is a relatively new clinical entity and develops clinical symptoms of a unilateral single nerve root lesion. Although many cases of diskal cyst have been reported, the pathogenesis of diskal cyst remains unclear, and several theories regarding the pathogenesis have been proposed. This article presents 2 cases of diskal cyst communicating with an adjacent herniated disk. Magnetic...

The 'foraminoplastic' ventral epidural approach and its advantages in the treatment of extruded disk herniation at the L5-S1 level are described. Percutaneous endoscopic lumbar discectomy is a minimally invasive procedure applicable to various types of lumbar disk herniation, but the L5-S1 disk space is still challenging to access due to anatomic limitations such as high iliac crest or severely...

A 31-year-old patient complained of severe crushing chest pain that radiated to his left arm and jaw. After admission to the hospital, tests revealed a normal electrocardiogram, normal treadmill, normal coronary arteriogram, and normal cardiac enzymes. However, the patient continued to have pain, which was relieved by sublingual and intravenous nitroglycerine. He was discharged from the hospita...