- Radiography
For medical radiography Radiology Image Grenadexray.jpg thumb right 240px An X ray from the Vietnam war shows an unexploded grenade embedded in a patient s skull. As demonstrated by the intubation, the patient is lying down, not standing up. The circumstances behind the image are otherwise unknown. Radiography ... a 3D representation of the scanned object patient. Medical and industrial radiography Radiography is used for both medical and industry industrial applications see medical radiography and industrial radiography . If the object being examined is living, whether human or animal , it is regarded as medical all other radiography is regarded as industrial radiographic work. History of radiography Image ..., late 1800s. Radiography started in 1895 with the discovery of X ray s, also referred to as R ntgen ... radiation were discovered. Indeed, Marie Curie pushed for radiography to be used to treat wounded soldiers in World War I. Initially, many kinds of staff conducted radiography in hospitals, including ... radiography quite narrowly as taking X ray images , this has long been only part of the work of X ray ... 471 07338 5 ref In general, medical radiography is done using X rays formed in an X ray tube . Nuclear ... to radiography are X ray and gamma radiation . This radiation is much more energy energetic than the more ... makes gamma rays useful in radiography but potentially hazardous to living organisms. File Darwinius ... depicted as a single sinusoidal wave. While in the past radium and radon have both been used for radiography ... commonly used in radiography, the interaction between gamma rays and electrons occurs in two ... radiography Shadowgraphs Background radiation References Reflist Carestream. http www.kodak.com ... NIST s FAST Attenuation and Scattering Tables http www.air.asn.au Australian Institute of Radiography ... information on the practice of Radiography Professionals http www.esr online.org European ... date September 2010 Category Medical imaging Category Radiography ar zh min nan Ti n kong ... more details
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- Computed radiography
br TOCright Computed Radiography CR uses very similar equipment to conventional Radiography Industrial radiography radiography except that in place of a film to create the image, an imaging plate IP made of photostimulable phosphor is used. The imaging plate housed in a special cassette and placed under the body part or object to be examined and the x ray exposure is made. Hence, instead of taking an exposed film into a darkroom for developing in chemical tanks or an automatic film processor, the imaging plate is run through a special laser scanner, or CR reader, that reads and digitizes the image ... and zoom. Differences from Direct Radiography File CRSCanner.png right thumb CeReO Computed Radiography Scanner Computed radiography CR is often distinguished from Direct Radiography DR . CR and DR have ... Common applications for computed radiography include corrosion surveys on pipes, often through ... piping File Crapared.jpg right thumb Medical applications Computed Radiography systems are the most ... be stored digitally. Computed radiography often requires fewer retakes due to under or over exposure ... of thicknesses may be examined in one exposure, unlike conventional film based radiography, which ... and OEM s. There also are no quality image resolution standards for general radiography, only for mammography ... X Agfa CR 85 X Agfa DX S See also Digital radiography References http www.icrcompany.com http www.starrview.com ... ?en en D RR MEDICAL http www.ndt.net article wcndt2004 pdf radiography 367 deprins.pdf Computed Radiography in NDT Applications http www.ndt.net article mendt2005 pdf 08.pdf Digital Applications of Radiography http www.medical.philips.com de products xray products radiography computed s index.wpd Philips ...?LangType 1033 Carestream Health http www.fujifilm.com products medical products computed radiography ... www.activexray.com Active X ray Category Radiography category Nondestructive testing fr Computed Radiography it Radiografia digitale ja X zh ... more details
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- Projectional radiography
Image Ap lateral elbow.jpg thumb 300px AP and Lateral Elbow X Ray Projectional radiography or plain film radiography is the practice of producing two dimensional images using x ray radiation. Radiographic exams are typically performed by Radiologic Technologists, highly trained medical professionals who specialize in the usage of radiographic equipment, patient care, and radiation safety. Projectional radiography is the cornerstone of modern medical imaging, and can be used to image almost every part of the human body. Mammography and Dental radiography are also considered to be specialized variants of projectional radiography. Imaging principles File XrayBodyImage.jpg thumb right X ray under examination Projectional radiography relies on the characteristics of x ray radiation and knowledge of how it interacts with human tissue to create diagnostic images. X rays are a form of ionizing radiation , meaning it has sufficient energy to potentially remove electrons from an atom, thus giving it a charge and making it an ion . Ionizing radiation has sufficient energy to penetrate human tissue. X ray attenuation When an exposure is made, x ray radiation exits the tube as what is known as the primary ... radiography terminology NOTE The word view is often used erroneously to describe a radiographic ... Digital Room Equipment Used in Projectional Radiography Ceiling or Floor Mounted X ray tube Height ... or CR Plate Digital radiography DR Detectors Processor or Image Reader Chest Stand Differences around ... to the image receptor. blockquote See also Radiography Medical imaging X ray Radiologic technologist Computed radiography Digital radiography Tomography Anatomical terms of location External links http www.rtstudents.com radiology positions.htm Online Radiography Positioning Manual http www2.radiography.com ... j index.php?page login RADIOGRAPHY WIKI A fledgling radiography specific wiki http www.radme.com Radiology ... Category Radiography Category Radiology si sk Skiagrafia ... more details
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- Medical radiography
Merge Radiology date January 2009 Radiography is the use of ionizing electromagnetic radiation such as X ... emission tomography PET and Magnetic resonance imaging MRI are sometimes grouped in radiography ... radiation is known as radiotherapy . History Radiography started in 1895 with the discovery of X ray ... of staff conducted radiography in hospitals, including physicists, photographers, doctors, nurses .... Although a nonspecialist dictionary might define radiography quite narrowly as taking X ray images ... testing , where the newer technology of ultrasound is also used. Diagnostic radiography Diagnostic radiography involves the use of both ionising radiation and non ionising radiation to create images ... tests, after blood test laboratory tests . This application is known as diagnostic radiography. Since ... calcium rich bones . Medical diagnostic radiography is undertaken by a specially trained professional ... sub specialities Projection radiography For the main article see Projectional Radiography The creation ... radiography. The shadow may be converted to light using a fluorescent screen, which is then captured ... s especially lend themselves to projection radiography. It is a relatively low cost investigation with a high diagnosis diagnostic yield. Projection radiography uses X rays in different amounts ... on a fractured elbow . Dental radiography uses a small radiation dose with high penetration to view ... modalities are used in radiography when traditional projection X ray cannot image what doctors want to see. Below are other modalities included within radiography they are only summaries and more ... densitometry, is used primarily for osteoporosis tests. It is not projection radiography, as the X ... radiography examinations. Computed tomography Computed tomography or CT scan previously known as CAT ... radiation used in medical radiography. This radiation is much more energy energetic than the more ... considerations in medical radiography and these requirements determined the desired energies of the tube ... more details
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- Industrial radiography
Industrial Radiography is the use of ionizing electromagnetic radiation radiations to view objects in a way ... or modify objects radiography s purpose is strictly for viewing. Industrial radiography has ... various materials. History Radiography started in 1895 with the discovery of X ray s later also called ... for industrial radiography, and the use of radium and radon decreased. Applications Inspection of products ... of radiography concerns the testing and grading of welds on pressurized piping, pressure vessels, high ... s using X ray radiography. See airport security for more details. Non intrusive Cargo Scanning aka ... ray Image of intermodal freight transport intermodal cargo container with stowaway s Gamma Radiography and High Energy X ray radiography are currently used to scan intermodal freight transport intermodal ... types of radiography like Dual Energy Radiography Dual Energy X ray Radiography or Muon Radiography ... to use Cs 137 as a photon source for radiography but this isotope is always diluted with inactive ... site in a shielded container. It is normal to place the film in industrial radiography, clear the area ... in industrial radiography is the radioactive photon source. Torch design of radiographic cameras ... to exit the radiography camera. Image Torchradiographycamerawithhinge.png thumb 350px centre This torch ... Defects such as delamination s and planar cracks are difficult to detect using radiography, which is why ... rare cases, radiography is done with neutron s. This type of radiography is called neutron radiography NR, Nray, N Ray or neutron imaging . Neutron radiography can see very different things than X ... water. Industrial radiography appears to have one of the worst safety profiles of the radiation ... there are few other people present as most industrial radiography is carried out in the open rather ... are the three most comman factors attributed to industrial radiography accidents. Many of the lost source accidents commented on by the International Atomic Energy Agency involve radiography equipment ... more details
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- Dental radiography
in radiography. The name bitewing refers to a little tab of paper or plastic situated in the center ... of the Royal College of Surgeons of England publication Selection Criteria in Dental Radiography ... x ray radiography of the teeth of a 64 year old male. Dental work performed mostly in UK Europe ..., Harvard School of Dental Medicine, 1dec07 ref See also Orthopantomogram X ray Radiography Digital radiography Selection Criteria in Dental Radiography References references External links http www.ada.org ... wiki j index.php RADIOGRAPHY WIKI A fledgling radiography specific wiki http www.ddsgadget.com ddsgadgetwp category radiology digital radiography Discussions on Digital Radiography in Dentistry DDSGadget Medical imaging Category Dentistry branches Category Radiography ar ... more details
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- Digital radiography
Digital radiography is a form of x ray imaging, where digital X ray sensors are used instead of traditional photographic film. Advantages include time efficiency through bypassing chemical processing and the ability to digitally transfer and enhance images. Also less radiation can be used to produce an image of similar contrast to conventional radiography. Digital Radiography DR or DX is essentially filmless X ray image capture. In place of X ray film, a digital image capture device is used to record the X ray image and make it available as a digital file that can be presented for interpretation and saved as part of the patient s medical record. The advantages of DR over film include immediate image preview and availability, a wider dynamic range which makes it more forgiving for over and under exposure as well as the ability to apply special image processing techniques that enhance overall display of the image. The largest motivator for healthcare facilities to adopt DR is its potential to reduce costs associated with processing, managing and storing films. Typically there are two variants of digital image capture devices. These devices include Flat Panel detectors FPDs , and High Density Line Scan Solid State detectors. FPDs are classified in two main categories 1. Indirect FPD s Amorphous silicon a Si is the most frequent type of FPD sold in the medical imaging industry today. Combining a Si detectors with a scintillator in the detector s outer layer, which is made from Cesium ... Dental main Dental radiography The radiological examinations in dentistry may be classified ... it under the restricted name radiovisiography other companies use the phrase digital radiography and continues ... distortions already high in dental panoramic radiography. Since 2008 the SCAN300FP system is available ... or Panoramic Corporation, I MAX of Owandy sold as of Villa, etc. See also Computed radiography Category Medical imaging Category Radiography External links http www.sirotech.co.uk Sirotech The UK ... more details
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- Selection Criteria in Dental Radiography
This is a seminal publication of the Faculty of General Dental Practice Faculty of General Dental Practice UK of the Royal College of Surgeons of England . The publication marked the standardisation of dental radiography and now provides the dental profession with a set of evidence based medicine evidence based criteria in order to minimse radiation exposure to dental patients and staff. Key recommendations were in the area of bitewing radiography where intervals between bitewing Screening medicine screening radiographs checking for dental caries between teeth were recommended based on patient risk of disease. The patient is considered to be either High, medium or low risk of dental decay. The interval between bitewings is recommended to be either 6, 12 or 18 months plus accordingly. The effect of this has been to ensure that via a process of clinical governance and clinical audit , the number of radiation exposures to patients is minimised, while allowing clinical decisions to be made based on good radiographs, improving patient outcomes. The second edition of Selection Criteria for Dental Radiography has been fully revised and updated. Several sections have been updated in light of new evidence and research findings while others, such as the use of digital radiography, have been expanded to reflect an increasing use in general dental practice. These selection criteria also conform to the Ionising Radiation Medical Exposure Regulations 2000, and help practitioners form a sound basis for clinical decisions. Category Dental radiography ... more details
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- Genitography
Genitography is the radiography of the urogenital sinus and internal duct structures after Injection medicine injection of a contrast medium through the opening of the sinus. References Dorland s Illustrated Medical Dictionary Twenty sixth Edition ISBN 0 7216 1645 3 treatment stub Category Radiography ... more details
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- Focus film distance
Unreferenced date October 2007 Dicdef Focus film distance FFD is the distance between the X ray source and the film in diagnostic radiography . It has recently been superseded due to the replacement of film with computed radiography or direct digital radiography detectors. There are now various possible alternatives source image distance SID focus image distance FID source receptor distance SRD and focus receptor distance FRD . SID seems to be the most common perhaps as it was already in use as a term in fluoroscopy to describe source intensifier distance. Category Radiography Category Photographic techniques Med stub ... more details
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- Portography
Portography is a radiography of the portal vein after injection of radioopaque contrast material . med stub Vascular procedures Operations and other procedures on the digestive system Category Radiology ... more details
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- File:US patent 4672649 Fig 2.png
PD US patent Figure 2 from U.S. patent 4,672,649, Three Dimensional Scanned Projection Radiography Using High Speed Computed Tomographic Scanning System , Brian K. Rutt, assigned to Imatron General Electric . ... more details
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- Urografin
Urografin is a contrast medium that is commonly used for intravenous pyelogram intravenous pyelography ref http www.asa.org.za pharm schering urografn.html ref . References Reflist Category Radiography biosci stub ... more details
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- Esophagogram
Orphan date September 2008 Esophagogram is a contrast radio graph of the esophagus . Gastrografin Contrast Esophagogram is often used to confirm the diagnosis and to locate the position of esophagial perforation. Category Radiography med stub ... more details
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- Orbital x-ray
Notability date March 2010 Unreferenced date July 2009 Orbital x ray or orbital radiography is a specialized form of radiography used to study the Orbit anatomy orbit of the eye. It is useful for detecting problems in the eye arising from injury or disease. It is also commonly used for detecting foreign objects in the eye that an ophthalmoscope cannot detect and is sometimes given prior to an magnetic resonance imaging MRI where metal fragments could cause significant damage. med stub Category Ophthalmic equipment ... more details
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- Shadowgraphy
Shadowgraphy may refer to Shadowgraphy performing art , using hand shadows Shadow play or shadow puppetry, performing art using cut out figures Radiography , the use of X rays Shadowgraph s or shadowgrams, an optical method that reveals non uniformities in transparent media disambig ... more details
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- School of Community and Health Sciences
Clinic Old Street area Radiography Goswell Road Nursing and Midwifery has two sites at Whitechapel ..., optometry and radiography. The staff include three Learning and Teachning Co ordinators who help ... the library services. Department of Radiography The Department of Radiography at City University London offer two undergraduate degree courses BSc Hons Radiography Diagnostic Imaging and BSc Hons Radiography ... on this department, visit http www.city.ac.uk radiography Diagnostic Radiography Radiologic technologist ... diagnostic radiography bsc.html BSc Hons Radiography Diagnostic Imaging course at City involves ... for the BSc Radiography Diagnostic Imaging degree are br a minimum of five GCSEs at grades A C ... of the profession of diagnostic radiography and be able to provide evidence that you have visited ... more details
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- Automatic exposure control
unreferenced date June 2010 Automatic Exposure Control AEC is an X ray exposure termination device. A Projectional radiography medical radiography x ray exposure is always initiated by a human operator. X ray termination is done by the same human operator or an exposure control device such as an electronic timer or an AEC device, which ever comes first. The intention of the AEC termination device is to provide consistent x ray film appearance. Operation An AEC system uses a physically thin radiation ionization detector AEC detector which is positioned between the patient being x rayed and the x ray film cassette. X rays passing through the patient also pass through this AEC detector before they strike the x ray film. A weak ionization signal from the AEC detector is integrated as a ramp shaped voltage waveform . This ramp signal rises until it matches a pre set threshold. At this point the x ray exposure is terminated. AEC devices are calibrated to match good x ray film appearance. Advantages Because patients vary in size and shape, an AEC device is very useful in achieving good consistent x ray film results compared to non AEC x ray exposures. DEFAULTSORT Automatic Exposure Control Category Radiography it Controllo automatico dell esposizione ... more details
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- School of Health Sciences, Nanyang Polytechnic
Since 1992, the Nanyang Polytechnic School of Health Sciences NYP SHS is an establishment which develops skills for careers in Nursing , Physiotherapy , Occupational Therapy , Diagnostic radiography and Radiation therapy in Singapore . A new Diploma in Dental Therapy was offered for O level leavers from July 2003. The School prepares healthcare professionals to address disease prevention and management, research and development of care procedures, and ways to promote and maintain health and well being. These healthcare professionals work in hospitals, clinics, school dental clinic s, dental centres, dental laboratory dental laboratories , rehabilitation centres, community health agencies and other health related settings. Facilities include the School s e Learning database anatomy resource centre laboratories Diplomas Offered Diploma in Nursing Diploma in Dental Hygiene and Therapy Diploma in Occupational Therapy Diploma in Physiotheraphy Diploma in Diagnostic Radiography Diploma in Radiation Therapy References http www.nyp.edu.sg Nanyang Polytechnic Website Category Nanyang Polytechnic ... more details
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- Involucrum
Unreferenced stub auto yes date December 2009 Involucrum is a layer of new bone growth outside existing bone seen in pyogenic osteomyelitis . It results from the stripping off of the periosteum by the accumulation of pus within the bone, and new bone growing from the periosteum . It can be seen radiography radiographically e.g. with x ray s , but is extremely rare in developed countries as osteomyelitis is rarely left untreated. See also Sequestrum Osteochondropathy Category Skeletal system Musculoskeletal stub ... more details
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- Lubbert's effect
Unreferenced stub auto yes date December 2009 Orphan date December 2009 Lubberts effect refers to the non uniform response of an Medical imaging imaging system to x ray s that are absorbed at different depths within the input phosphor . It indicates an input phosphor depth dependent response of the imaging system. DEFAULTSORT Lubbert s Effect Category Radiology Category Radiography Med stub ... more details
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- Esophagram
An esophagram is a series of x ray s of the esophagus . The x ray pictures are taken after the person drinks a solution that contains barium . The barium coats and outlines the esophagus on the x ray. Also called barium swallow and upper GI series . External links http www.cancer.gov Templates db alpha.aspx?CdrID 46407 Esophagram entry in the public domain NCI Dictionary of Cancer Terms NCI cancer dict Digestive system procedures Category Radiography med stub ... more details
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- List of medical abbreviations: X
MedAbbrev W Y class wikitable sortable scope col Abbreviation scope col Meaning span style text decoration overline x span x with macron except XR extended release see Time Release Technology medicine br x ray see radiography XRT Radiation therapy radiotherapy used in cancer treatment MedAbbrev W Y Category Lists of medical abbreviations ... more details
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- X-ray marker
Orphan date February 2009 X ray markers , also known as MAX MARKERS , lead markers, x ray lead markers, or radiographic film identification markers, are used to mark x ray films, both in hospital s and in industrial workplaces such as on airplane parts and Engine motors . Most x ray markers consist of a right and a left letter with the Radiologic technologist technologist s initials. There is also a bb to show whether the plane of the body is supine or upright. medical stub Category Radiography ... more details
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- Lingual foramen
File Lingual foramen.JPG thumb right 250px The small lingual foramen black hole in lower portion of picture as seen on a periapical dental radiography radiograph of the anterior human mandible mandible . The lingual foramen is a small hole situated on the tongue side surface of the anterior human mandible mandible through which small blood vessels and nerves pass. References reflist Facial bones Category Bones of the head and neck ... more details
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