The sum of the number of day care places for these four specialisations may not equal the total if the specialisation of all places cannot be determined.
Computed tomography scanners CT or CAT units are machines which combine many X-ray images with the aid of a computer to generate cross-sectional views and, if needed, three-dimensional images of the internal organs and structures of the body. Magnetic resonance imaging units MRI units visualise internal structures of the body using magnetic and electromagnetic fields which induce a resonance effect of hydrogen atoms from which images of the body structures can be produced.
Positron emission tomography scanner units PET scanners use short-lived radioactive substances for highly specialised imaging. The gathered data are processed to form a cross-sectional tomographic image.
Mammography units include only dedicated mammography machines, in other words those designed exclusively for taking mammograms. Radiation therapy equipment includes machines providing medical treatment through the use of X-rays or radionuclides, for example linear accelerators, Cobalt units, high dose and low dose rate brachytherapy units; these units often form part of the treatment for cancer patients.
Statistics on healthcare resources such as technical resources and medical technology are documented in this background article which provides information on the scope of the data, its legal basis, the methodology employed, as well as related concepts and definitions.
The data on the availability of medical technology and of imaging equipment concern equipment in hospitals and in ambulatory health care facilities. More detailed country specific notes on this data collection, please refer to these background information documents:. Developments in medical techniques and technologies impact on medical diagnosis and treatment. The data on medical technology presented in this article concern equipment for diagnosis or treatment.
After the discovery of X-rays, there was a relatively rapid transition before they started to be used for medical diagnosis of internal organs and body structures.
Technological advances have subsequently led to the introduction of various other diagnostic devices, such as gamma cameras developed to detect tumours or ultrasound images. One issue associated with the X-rays and gamma rays used in several of these types of equipment is exposure to ionising radiation, as this carries a risk of developmental problems and cancer.
By contrast, MRI scans use magnetic and electromagnetic fields, rather than X-rays, and so avoid these risks. Tools What links here Special pages. Data extracted in August Planned article update: February Use of imaging equipment — number of magnetic resonance imaging MRI scans, Note: Ireland and Sweden, not available.
Germany: Romania: Germany, Greece and the United Kingdom: estimate. Spain, Luxembourg and the Netherlands: provisional. Portugal, the United Kingdom and Switzerland: hospitals only. Full article. Availability of technical resources in hospitals Table 1 provides information concerning the number of day care places in hospitals in for 18 of the 27 EU Member States.
Availability of medical technology Eurostat collects data concerning six types of medical technology, five of which are imaging equipment used for diagnosis see Table 2 , while one is for treatment see Table 3. Widespread increase in the availability of imaging equipment over several decades The availability of equipment for diagnosis increased rapidly in most EU Member States over recent decades. Full access to 1m statistics Incl.
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Medical Technology MRI units per million: by country Medical Technology Global diagnostic imaging market shares of top medtech companies and Medical Technology Medtronic's total revenue Conor Stewart.
Profit from additional features with an Employee Account. Please create an employee account to be able to mark statistics as favorites. Then you can access your favorite statistics via the star in the header. Because hydrogen nuclei resonate at higher frequencies as the field strength increases, ultra-high-field MRIs must use shorter-wavelength, and thus higher-energy, radio pulses to make the protons wobble.
Human tissue absorbs more energy from these waves. So to avoid creating hotspots — and to make usable images — this energy must be smoothed out as much as possible inside the tube. Researchers have devised various ways of accomplishing this. One tactic, says Gregory Chang, a musculoskeletal radiologist at the New York University School of Medicine, is to generate the pulses using a ring of individually tunable transmitters arrayed around the patient.
The fine resolution is also a mixed blessing, because it makes scanners highly sensitive to the slightest motion. Some repetitive movements in the body, caused by breathing or heartbeats, can be modelled and removed. Tackling these artefacts is an ongoing area of research, he says.
Each layer has a specialization: one handles inputs from other brain areas, some process information and still others convey the outputs of that processing to other parts of the brain. The jump to 7-T machines has enabled researchers to measure the relative activity in different layers, which can reveal how that information is travelling. The brain of a volunteer is imaged using a 3-T left and 9. Some teams have used this capability to measure activity as people undergo verbal and behavioural tests, and the results are illuminating how activity in different layers alters how various areas of the cortex process experiences S.
Lawrence et al. Researchers also hope to learn more about the columnar organization of the brain. Measuring roughly micrometres across, the columns run perpendicular to the cortical layers and communicate with each other through connections in one of the middle layers. If MRI could measure brain activity at a columnar level, scientists might be able to use that to draw conclusions about computations in individual neurons.
But Ugurbil says that the machines already show promise for clinical diagnosis and treatment. MRI is used to help surgeons position the electrode, and once it seems to be in place, the electrode is activated to see whether it hit the correct target.
But using 1. Images taken with 7-T scanners eliminate all this poking around. Scans done with 7-T machines have also revealed more about the symptoms and progression of multiple sclerosis.
These lesions might explain why the patients develop cognitive symptoms. If greater resolution is not needed, clinicians can also use the higher signal-to-noise ratio in an ultra-high-field MRI to simply scan more quickly, creating images in seconds that would otherwise take minutes, and images in minutes that would otherwise take hours. For patients, this can make a big difference in comfort. The Chinese market is huge and moving, but exact data is difficult to get.
Twelve to fifteen machines per one million inhabitants fully satisfy the medical needs of the population. Table gives an overview of the number of MR units in some exemplary countries worldwide. Table Top: Overall number of MR machines in some selected countries.
In countries with over- saturated markets, e. The choice of an MR system might be quite agonizing. Most appraisals of the "best" equipment are subjective opinions sold as research backed unshakable conclusions. Since there are very few scientifically reliable outcome studies, any claims about superiority of equipment types or best field strength must be looked at cum grano salis see also Diagnostic accuracy. Needs must be carefully assessed in the choice of an MR imager.
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