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The American Journal of Dental Science Nov 1896
PubMed: 30757513
DOI: No ID Found -
AJNR. American Journal of Neuroradiology Jun 2012Although radiography of the spine began shortly after Roentgen's discovery in 1895, there was little written in the medical literature about spine imaging until nearly...
Although radiography of the spine began shortly after Roentgen's discovery in 1895, there was little written in the medical literature about spine imaging until nearly 25 years later with the development of myelography, first by using air and then a variety of positive contrast agents. The history of spine imaging before CT and MR imaging is, in large part, a history of the development of contrast agents for intrathecal use. The advent of CT and, more important, MR imaging revolutionized spine imaging. The spinal cord and its surrounding structures could now be noninvasively visualized in great detail. In situations in which myelography is still necessary, advances in contrast agents have made the procedure less painful with fewer side effects. In this historical review, we will trace the evolution of spine imaging that has led to less invasive techniques for the evaluation of the spine and its contents and has resulted in more rapid, more specific diagnosis, therapy, and improved outcomes.
Topics: History, 20th Century; History, 21st Century; Humans; Myelography; Neuroradiography; Spinal Diseases
PubMed: 22576888
DOI: 10.3174/ajnr.A3129 -
The Biochemical Journal Mar 1953
Chemical action of x-rays on nucleic acids and related substances in aqueous systems. 1. Degradation of nucleic acids, purines, pyrimidines, nucleosides and nucleotides by x-rays and by free radicals produced chemically.
Topics: Free Radicals; Nucleic Acids; Nucleosides; Nucleotides; Purines; Pyrimidines; X-Rays
PubMed: 13032110
DOI: 10.1042/bj0530567 -
California Medicine Mar 1951Despite continued advances in x-ray technology, evidence indicates that x-radiation injuries occur today to an excessive degree. These injuries have led to a progressive...
Despite continued advances in x-ray technology, evidence indicates that x-radiation injuries occur today to an excessive degree. These injuries have led to a progressive stiffening of standards of permissible exposure, especially in the past 15 years. Protection from radiation damage is logically based on dosimetry, preferably administered by a centralized service laboratory. The experience of two large hospitals in the control of x-radiation exposure is cited. Personnel exposed to x-radiation may be monitored by either pocket dosimeters of the ion chamber or electroscope type or by standardized film badge dosimeters. A recently developed film badge dosimeter that measures effective x-ray energy and radiation exposure in a quantitative manner is described.
Topics: Film Dosimetry; Humans; Radiometry; Reference Standards; X-Rays
PubMed: 14812354
DOI: No ID Found -
Canadian Family Physician Medecin de... Jul 1981Within 20 years of Roentgen's discovery of X-rays in 1895, it became apparent that large doses of radiation damaged human tissue.(1) Yet the medical profession continues...
Within 20 years of Roentgen's discovery of X-rays in 1895, it became apparent that large doses of radiation damaged human tissue.(1) Yet the medical profession continues to contribute to the overutilization of X-rays, occasionally spending health care dollars to subject our patients to a health risk. This paper discusses the evidence to support the claim that X-rays are overutilized, and offers recommendations to rectify the situation.
PubMed: 21289771
DOI: No ID Found -
Gastrointestinal Radiology 1984Clinical and roentgen features of hirsute esophagus in 3 patients are described. Exuberant hair growth and masses of hair in the endopharyngoesophagus produced the...
Clinical and roentgen features of hirsute esophagus in 3 patients are described. Exuberant hair growth and masses of hair in the endopharyngoesophagus produced the classic clinical triad of progressive dysphagia, hair-spitting, and choking spells. This unique and rare complication of reconstructive surgery of the pharynx and esophagus is related to the skin flaps which are mobilized and rotated to reconstruct a skin tube endopharyngoesphagus and to restore anatomical continuity of the gastrointestinal tract.
Topics: Esophageal Diseases; Hair; Humans; Male; Middle Aged; Postoperative Complications; Radiography; Skin Transplantation; Surgical Flaps
PubMed: 6389253
DOI: 10.1007/BF01887855 -
Journal of Orthopaedics 2020Demographic change and demand for high quality of life lead to increasing implantation numbers. Aim of this study was to compare the Plasmafit® cup to Allofit® and...
INTRODUCTION
Demographic change and demand for high quality of life lead to increasing implantation numbers. Aim of this study was to compare the Plasmafit® cup to Allofit® and Plasmacup®.
METHODS
The study included 174 patients who had received 33 Plasmacup®, 68 Allofit® and 73 Plasmafit® cup implants. These were reviewed postoperatively, after 6 months control and after 12 months.
RESULTS
No significant progressive migration could be discovered in any of the cup systems. At each follow-up the cups showed nearly constant values.
CONCLUSIONS
All examined acetabular cups showed excellent migration behavior within the first 12 postoperative months.
PubMed: 32280166
DOI: 10.1016/j.jor.2020.03.059 -
The Dental Register Feb 1900
PubMed: 33701067
DOI: No ID Found -
California State Journal of Medicine Sep 1915
PubMed: 18736716
DOI: No ID Found -
Bulletin of the New York Academy of... Oct 1967
Topics: Colonic Diseases; Granuloma; Humans
PubMed: 5235539
DOI: No ID Found