Biomedical subjects
Publications and source records attributed to J Fodor.
Radiographic examinations may reveal skeletal variations that are biological or cultural in origin. This article reviews both types of variations, discusses radiographic examples, and explains how radiographs can be helpful in the field of anthropology.
The prospective payment system is affecting the management and delivery of health care, and will have a large impact on the radiology department. This article describes the prospective payment system and explains how the role of the radiologic technologist may be altered.
A new total hip replacement has been approved for use in the United States. This system utilizes ceramic articular components and a metal stem. This article reviews the history of total hip replacement (THR) and the construction and advantages of the ceramic total hip replacement. Additionally, the radiographic appearance of current THR systems are compared with the new systems.
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While many foreign bodies are easily demonstrated on routine radiographs, others are of low radiopacity and may necessitate the use of special techniques or equipment for detection. Since routine radiography is usually the initial method for the investigation of a suspected foreign body, it is beneficial for the technologist to be familiar with several more effective techniques. The purpose of this paper is to acquaint the technologist with the application of these techniques in foreign body detection.
Radiography is a well-recognized method of nondestructive analysis of art objects and ancient relics. The methods and techniques used in the examination of two ancient Egyptian mummies are presented here. Additionally, the use of radiographic findings to help substantiate alleged historical information and to establish sex, age, and pathology of each specimen is discussed.
Over 2000 digital vascular imaging studies have been performed at the University of Cincinnati Hospital. During this period, methods and techniques for the performance of these examinations were established. The results of these efforts are reported and compared to angiography. Additionally, the advantages and disadvantages of digital vascular imaging, as well as the future of digital vascular imaging at the University of Cincinnati, are discussed.
The use of non-ionic contrast media for vascular applications is currently under investigation. Initial studies in the United States have demonstrated non-ionic contrast media have several advantages when compared to conventional ionic contrast media. A comparison of the ionic and non-ionic contrast media, including their physiologic effects, is presented to familiarize the radiologic technologist with this new product.
Inconsistent bones are of radiographic importance in the differentiation of trauma and anomalies. An understanding of the anatomy, including structure and location, permits the radiographer to apply basic positioning principles to better demonstrate these structures. The proper use of oblique or lateral, tangential and contralateral views provides the radiologist with the necessary information to make correct diagnoses. Examples of the aforementioned help to reinforce the content of the text.
Magnetic resonance utilizes the magnetic properties of atoms within the tissues of the body to produce images. This paper is intended to provide the reader with the most basic information concerning magnetic resonance. The principles, fundamental parameters, equipment, and site planning considerations are presented to familiarize the radiologic technologist with this new imaging modality.
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Diaphanography is a new imaging modality utilizing light to examine the breast. While this technique is similar to transillumination, it has several significant differences. Unlike transillumination, diaphanography makes use of selected wavelengths of light and special imaging equipment. While diaphanography appears to be a promising method for the screening of breast disease, it is still in the experimental stages. Studies evaluating the efficacy of this new modality are necessary before diaphanography can replace current methods of breast examination.
Dislocation of the shoulder is a common injury that may be difficult to demonstrate radiographically. Special views can aid in the demonstration of acute and previous shoulder dislocations. This article presents methods of shoulder radiography that can be used for evaluation of this injury. Additionally, the anatomy and mechanism of dislocation of the shoulder are discussed. Finally, examples demonstrating the usefulness of the described radiographic methods are included.
The methods and techniques involved in dental radiography are presented to familiarize the radiologic technologist with this practice. Additionally, the uses and pathologies commonly encountered in dental radiography are discussed. Although dental radiography is seldom performed by many radiographers, the techniques and methods used may be of interest and use to the radiographer.
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Digital Video Angiography is a new radiologic technique utilizing digital electronics to enhance subliminal information in the fluoroscopic image. Angiography performed via intravenous technique is safer, faster, and can be done on an outpatient basis reducing cost and patient inconvenience. Initial investigations indicate Digital Video Angiography is a useful diagnostic procedure that can, in certain instances, be used in place of angiography.
The need to reduce the dose of radiation to radiologists and technologists involved in peripheral angiography at the University of Cincinnati Hospital resulted in the development of a radiation shield. This shield is lightweight, transparent, and adequately reduces the level of scatter radiation produced during fluoroscopy without interfering with the angiographer or the sterile field. The shield is effective, fairly inexpensive, and simple to construct.