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Topic: Fluoroscope

	Fluoroscopy - Wikipedia, the free encyclopedia
		In its simplest form, a fluoroscope consists of an x-ray source and fluorescent screen between which a patient is placed.
		The use of x rays, a form of ionizing radiation, requires that the potential risks from a procedure be carefully balanced with the benefits of the procedure to the patient.
		Due to the limited light produced from the fluorescent screens, early radiologists were required to sit in a darkened room, in which the procedure was to be preformed, accustomizing their eyes to the dark and thereby increasing their sensitivity to the light.
	en.wikipedia.org /wiki/Fluoroscope (1172 words)

	Radiation Continuing Concern with Fluoroscopy (November 1993)
		At that time, the fluoroscope was a standard piece of medical equipment in some offices of family physicians.
		Fluoroscopes were also used for a short time in a very nonmedical setting--shoe stores.
		To determine shoe size, a fluoroscope would reveal the length and structure of foot bones, much to the delight of children who could see their skeletal toes wiggle.
	www.fda.gov /bbs/topics/CONSUMER/CON00261.html (1675 words)

	World Intellectual Property Organization (Site not responding. Last check: 2007-10-21)
		The fluoroscope 20 is illustrated as a C-arm fluoroscope in which an x-ray source 22 is mounted on a structural member or C-arm 26 opposite to an x-ray receiving and detecting unit, referred to herein as an imaging assembly 24.
		The imaging carried out by the fluoroscope is modeled as a camera system in which the optical center is located at the x-ray source and the imaging plane is located a distance F (focal length) away from it inside the camera assembly.
		Based on the assumption that the fluoroscopic images are acquired by approximately centering the region of interest, applicant defines a projection center of the imaged tissue volume from the ensemble of camera models, and uses this intersection point as the origin for a three-dimensional reconstruction.
	www.wipo.int /ipdl/IPDL-CIMAGES/view/pct/getbykey5?KEY=01/87136.011122&ELEMENT_SET=DECL (9999 words)

	fluoroscope -- Britannica Student Encyclopedia
		A fluoroscope is an instrument that makes use of X rays and a fluorescent viewing screen to examine the inside of an object, commonly the human body, that light cannot pass through.
		In a fl-and-white movie, the dark parts of the images on the screen are the shadows of the dark parts of the film passing between the projection lamp and the screen.
		Luminescence may be seen in neon and fluorescent lamps; television, radar, and X-ray fluoroscope screens; organic substances such as luminol or the luciferins...
	www.britannica.com /ebi/article-9274359?tocId=9274359 (498 words)

	Wolf X-Ray Products Fluoroscope (ca. 1920s) (Site not responding. Last check: 2007-10-21)
		Compared to generating images on x-ray film, the use of the fluoroscope resulted in higher doses to the patient and doctor (who would not otherwise be exposed to the direct beam).
		The body of the fluoroscope is covered with fl leatherette and the viewing port is protected from stray light with a fur-like fabric.
		The front end of the fluoroscope can be flipped up out of the way so that the physician could see without having to completely remove the fluoroscope.
	www.orau.org /ptp/collection/Radiology/fluoronohandle.htm (244 words)

	A Case Study Using Fluoroscope to Determine the Vital Elements of Transfemoral Interface Design - Journal of ...
		The purpose of this case study was to isolate and examine the key elements in a transfemoral interface and determine their impact on the femur and the pelvis using a dynamic medium.
		This was difficult to observe in the medium of a fluoroscope.
		Using the fluoroscope it cannot be concluded if the anterior wall does in fact help control rotation, but we can conclude that if the anterior wall does not hold the ischial tuberosity on the shelf, then it will compromise the skeletal control that could be achieved.
	www.oandp.org /jpo/library/2002_03_121.asp (2081 words)

	Apparatus and procedure for blind alignment of fasteners extended through transverse holes in an orthopedic locking ...
		Initially, a fluoroscope is used to identify points on the skin of a patient which are located on lines projected directed through screw holes in the distal end of an orthopedic nail located in the fractured bone of the patient.
		The fluoroscopic device is next again used to beam x-rays at the jig device and the leg so that the x-rays pass through the bores in the tubular drill guides and through the screw holes formed in the orthopedic nail.
		The fluoroscope assembly 106 also has a receiving module 110 which functions to receive or respond to x-rays transmitted from the head 108 and to develop appropriate signals indicative of the structures or elements "seen" by the x-rays in transient from the head to the receiver.
	www.freepatentsonline.com /4848327.html (8582 words)

	Shoe-Fitting Fluoroscope
		The shoe fitting fluoroscope was a common fixture in shoe stores during the 1930s, 1940s and 1950s.
		When you put your feet in a shoe fitting fluoroscope, you were effectively standing on top of the x-ray tube.
		After selling several such units to shoe manufacturers and retailers, Karrer was asked by the Radiological Society of North America and some radiologists to stop because it "lowered the dignity of the profession of radiology." Karrer complied, but another of his father's employees quit the company and patented the device.
	www.orau.org /ptp/collection/shoefittingfluor/shoe.htm (2107 words)

	[No title]
		Ardent and Sincere Advocates for the Fluoroscope ========================================================= Dr. Louis Faugeres Bishop must certainly be cited as the advocate of advocates for fluoroscopic investigation.
		Curiously enough the fluoroscopic diagnosis of the activities of the different chambers of the heart and the probable auricular and valvular defects as well as the discovery of congenital lesions was passed over lightly.
		Clarke felt that the same roentgenoscopic [fluoroscopic] attention to the child's abdomen is indicated, such as that which is becoming more universally accepted as a routine procedure for the adult.
	www.ratical.org /radiation/CNR/PBC/chp32.txt (4165 words)

	OHSU Low Dose Fluoroscopy
		Additionally, it was noted that all of the vendors considered for the pediatric fluoroscope at Doernbecher claimed that their product was "low-dose" with not very much discussion of image quality.
		While all grid pulsed fluoroscopes effectively block excess radiation, they do not necessarily provide rapid control of the x-ray beam intensity to take into account differences in the x-ray absorption of different tissues in the body.
		The end result of all of these pediatric optimizations is a fluoroscope that rapidly adjusts x-ray intensity to provide the best image, with an overall radiation dose that is substantially lower,and therefore safer, for pediatric patients.
	www.ohsu.edu /radiology/research/iqvsdose.html (1405 words)

	RSE, Inc. - Organ Dose Assessment (Site not responding. Last check: 2007-10-21)
		A conventional Shimadzu three phase fluoroscope with a 22.9 cm diameter image intensifier was used for the procedure.
		The examination was modeled in MCNP by creating two input files, one for the fluoroscope operating at 110 kVp and image receptor size of 22.9 cm, and one for the spot films with an 80 kVp photon energy spectrum and an 27.9 cm receptor.
		After 600,000 photons had been run for both the fluoroscope and spot film models, the detectors had converged and the ratio of ESE to uterine dose could be determined.
	www.radsafe.com /mcnp_dose/ercp.htm (1097 words)

	UTILIZATION OF AN AUTOMATED MODEL FITTING PROCESS TO DETERMINE KINEMATICS OF TKA (Site not responding. Last check: 2007-10-21)
		In a fluoroscope, the radiation source emits x-rays, which create a perspective projection of a patientâs anatomy on the image intensifier.
		To recreate the fluoroscope within the computer, the components of the fluoroscope are replaced by their computer counter-parts.
		On fluoroscopic images, an error analysis of the manual process revealed accuracy of 0.75 degrees for rotation and 0.75 mm for the in-plane translation.
	www.asb-biomech.org /onlineabs/abstracts99/040 (656 words)

	[No title] (Site not responding. Last check: 2007-10-21)
		If the manufacturing specifications are unavailable and CT imaging of the phantom shows too much artifacting of the balls, this may actually be the most accurate method for determining the locations of the ball centers, since the approximate dimensions of the phantom are known, along with the distances between the balls.
		Step 2: Characterization of fluoroscope image The centers of the fiducial markers in the 2D fluoroscopic image are located using the code for locating the fiducials in the dewarping algorithm.
		Step 3: Calculating the transformation matrix The P matrix is a compilation of three different factors: the pixel scaling, the projection, and the rigid transformation between the camera coordinate system and the object coordinate system.
	jhunix.hcf.jhu.edu /~djf1/cal.doc (850 words)

	The Object at Hand - Here’s Looking at You, Kids (Site not responding. Last check: 2007-10-21)
		The shoe-fitting fluoroscope used cutting-edge technology—the x-ray—to reveal the bones and soft tissue of the foot inside the shoe, ostensibly for a better fit.
		For three decades beginning in the mid-1920s, millions of children and adults in the United States, Europe and other parts of the world peered into the machines for an inside view of their usually wiggling toes.
		From the start, the fluoroscope, invoking the authority of modern science and technology to sell more shoes, functioned more as sales gimmick than fitting aid.
	www.smithsonianmag.si.edu /smithsonian/issues03/jul03/object.html (444 words)

	Pacemaker Surgery is Routine (Site not responding. Last check: 2007-10-21)
		the fluoroscope may be thought of as a kind of moving X-ray picture.
		You will not be able to see the fluoroscope, but you may be aware of the staff looking at it during this phase of the operation.
		The doctor will probably operate the fluoroscope with a foot pedal on the floor, which you may hear.
	openheartsurgeon.com /page5 (2996 words)

	FATHOM: Sidebars (Site not responding. Last check: 2007-10-21)
		Until the invention of echocardiography, in 1953, cardiologists had three tools at their disposal--a stethoscope, a fluoroscope and an electrocardiogram (EKG).
		A fluoroscope is basically an X-ray machine that leaves the beam on instead of taking a momentary snapshot.
		While a fluoroscope allowed you to see movement, it exposed both the operator and the patient to large doses of X-rays.
	www.fathom.com /media/sidebars/1769_sidebara.html (362 words)

	Product page (Site not responding. Last check: 2007-10-21)
		The Fluoroscope 90, designed for ergonomic simplicity and efficiency with an emphasis on patient comfort and safety, bringing maximum productivity to a wide range of clinical studies.
		This combined with the ability to image adult patients from head to toe without the need to move the patient during the study, makes the Fluoroscope 90 an ideal trauma facility.
		Equipped with variable S.I.D., height adjustable table top, rotating X-ray tube mount and a rotating collimator, virtually any examination is accommodated including table top radiography, vertical wall Bucky projections and also direct radiography of patients on stretchers or beds.
	www.toshiba-europe.com /medical/medicalp.asp?PageID=2311&PRODUCT_ID=1566 (137 words)

	IPN - PiKo: template3
		The fluoroscope was invented in 1896 by Enrico Salvioni.
		Edison and his assistant, Clarence Dally were exposed to large doses of x-rays frequently because they were demonstrating the fluoroscope.
		Dally’s body was so sever that in 1904 he died of cancer which was a result of the exposure.
	web.phys.ksu.edu /mmmm/piko/fluor.htm (520 words)

	Lakeside Hospital adds fluoroscope to imaging center
		New equipment has been purchased, renovations have been completed for the installation of the fluoroscopic equipment and patients are reaping the rewards of the new technologies.
		Heary agreed, saying that the digital fluoroscope offers patients half the radiation and images that are 100 percent better in quality.
		The images are transmitted from the digital fluoroscopic machine to a computer work station where the images are stored.
	westsidenewsonline.com /OldSite/westside/news/2003/1117/features/lakeside.html (570 words)

	Neurological Research: Mobile fluoroscopic open sterotaxy for MRI-negative angiographic microlesions (Site not responding. Last check: 2007-10-21)
		Under fluoroscopic control, the scalp is marked using radiopaque pointer on each side of the patient's head so that the scalp marks and the target lesion overlap each other on the fluoroscope monitor.
		In the operating room, the nidus was clearly demonstrated and localized by DSA with a mobile fluoroscope employing the same technique described in Patient 1.
		It does not restrict the patient's head position, and is not susceptible to the image distortion of the fluoroscope, because the calculations are based on the principle that light travels straight.
	www.findarticles.com /p/articles/mi_qa3909/is_199812/ai_n8820873 (1356 words)

	Product Clinical Information - Abstracts & Reprints (Site not responding. Last check: 2007-10-21)
		The DRTS™, mounted on a standard C-Arm fluoroscope (OEC 9400 or OEC 9600), was used to localize and provide guidance information for the cannulation of the foremen ovale in five patients in an operating room (OR).
		The principle limitation of the technique of the quality of fluoroscopic image, Older model fluoroscopes required longer fluoro time for target identification.
		With correct positioning and knowledge of the physical and radiographic anatomy, fluoroscopic localization is rapid.
	www.minrad.com /CLIN/abs2.html (1272 words)

	Arthrography
		Arthrograpy is a procedure involving multiple x rays of a joint using a fluoroscope, or a special piece of x-ray equipment which shows an immediate x-ray image.
		The procedure may also be conducted to identify problems with the ligaments, cartilage, tendons, or the joint capsule of the hip, shoulder, knee, ankle or wrist.
		Following fluoroscopic tracking of the contrast, standard x rays of the area may also be taken.
	www.healthatoz.com /healthatoz/Atoz/ency/arthrography.jsp (1041 words)

	mag interview
		That's the fluoroscope, a hand-held scanner shaped like a large C, which displays its findings on a TV monitor as it's manipulated around your horse's leg.
		Kleider found there was something of a learning curve to interpreting fluoroscopic images at first, since they're the reverse of X rays.
		Concerns about radiation exposure might have dissuaded some practitioners from employing fluoroscopes, but according to Kleider, the amount of radiation emitted by a fluoroscope is very low compared to conventional X rays.
	www.horsebc.com /kvs/mag_interview.htm (754 words)

	FluoroNav - Fluoroscopy
		In fluoroscopy, a medical device called a fluoroscope (sometimes termed a C-arm because of the shape of the device) takes an x-ray of a patient and displays it on a viewing screen, much like a TV.
		By harnessing the power of the computer with the fluoroscope, FluoroNav allows the surgeon to see many views of the spine from many different angles simultaneously, all with minimal x-ray exposure.
		In other words, the surgeon takes pictures of the spine with the fluoroscope while the patient is in the operating room, but prior to navigating in the spine.
	www.spineuniverse.com /conditions/fluoronav.html (759 words)

	Center for Spine - diagnostics for back pain (Site not responding. Last check: 2007-10-21)
		The procedure is performed with the aid of a C-arm fluoroscope which is used to direct needles through the skin and muscles to the path of the sensory nerves that are located in the facet joints.
		Facet Injections are performed using a C-arm fluoroscope to direct needles through the skin into the facet joints.
		With the aid of a C-arm fluoroscope unit, the physician directs a needle through the back into the epidural space.
	www.centerforspine.com /diag_more.html (850 words)

	Keenan Wyrobek
		Brachytherapy is a prostate cancer treatment that is based on the insertion of 100 to 150 radioactive seeds in a prescribed pattern in the cancerous prostate.
		Accurate estimation of dose distribution requires several fluoroscope poses to be registered to the TRUS image.
		We are using a helical fiducial imaged in the fluoroscope and mechanically encoded to the TRUS.
	robotics.me.jhu.edu /~keenan/design.html (1828 words)

	Stop-Pain.com \| Tests/Diagnostics
		A fluoroscope is an X-ray machine that projects an imagine onto a TV monitor.
		This allows the doctor to see exactly where a needle should be placed for a particular injection.
		Dye is injected into several discs and viewed under a fluoroscope (X-ray machine), to give the doctor a clear picture of where the pain originates.
	www.stop-pain.com /tests.html (200 words)

	Austin Radiological Association - Radiology Services & Exams - Pediatric Exams - Fluoroscopy (Site not responding. Last check: 2007-10-21)
		This is a device that has a tilting table connected to an x-ray machine and a television screen.
		The fluoroscope produces a real-time x-ray image of you on the TV screen while you are on the table.
		Images are taken on the fluoroscope as the dye passes through these parts of your body.
	www.ausrad.com /rse_le_p_fl.shtml (3332 words)

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