MRI Scanner

Magnetic resonance imaging (MRI), or nuclear magnetic resonance imaging (NMRI) refers to a sophisticated medical technique used in radiology. This medical imaging technique is commonly used to visualize internal structure and functions of the body organs. The images captured by MRI technique give detail information to assess the functions inside the body. These images provide greater contrast between the different soft tissues of the body than other scanning technologies like computed tomography (CT) and X-rays. The magnetic resonance imaging scan is a non-invasive method that uses magnets and radio waves to give deep look inside the human body. It is widely used in the neurological treatment, musculoskeletal, cardiovascular, and oncological imaging. MRI does not use ionizing radiation like CT, but it uses powerful magnetic field to align the nuclear magnetization of hydrogen atoms in water that is present in the body. The MRI images can be reviewed on a large computer screen to identify the exact problem. Here radio frequency field is used to systematically alter the alignment of this magnetization, causing the hydrogen nuclei to produce a rotating magnetic field detectable by the scanner. A radiofrequency electromagnetic field makes the protons change their alignment relative to the field. As soon as the electromagnetic field is turned off, the released protons return to their original alignment.

What is a PET Scanner?

Positron Emission Tomography (PET) scans measure emissions from positron-emitting molecules. In the 1970s, PET scanning was introduced to the medical community. During the 1980s, the technology that underlies PET advanced greatly. Commercial PET scanners have resolution that is more precise and images that are more accurate than CT scanners. Many of the steps required for producing a PET scan are performed by a trained technician or an experienced physician, thereby reducing the cost and complexity of the procedure. The main difference between the CT and PET scans is the PET scan shows molecular function and activity instead of structure, and therefore can often differentiate between normal and abnormal tissue. A PET scan produces three dimensional images and usually compliments rather than replaces the information obtained from a CT scan. By measuring blood flow and metabolic rate within the heart, physicians using PET scans can discover areas of decreased blood flow, such as those areas with blockages, and differentiate living muscle from damaged muscle that has inadequate blood flow. This information is particularly important for patients who have had previous myocardial infarction or who are being considered for a procedure such as a coronary artery bypass surgery or angioplasty.

What is a CT Scanner?

A CT scan is many times as sensitive as an ordinary x-ray. It is produced by an x-ray beam that goes through your body. The CT equipment receives and analyzes the x-ray beam that emerges on the other side. The resulting picture can reveal soft tissue structures not identifiable on a standard x-ray. You will be asked to lie flat on a movable table; then the table is guided into the center of the CT scanner. This instrument resembles an enormous doughnut. While you remain still, x-rays in a complete circle are beamed through segments of your body and are picked up by detectors. This information is fed into a computer which gathers the data and converts it into a video or photographic image which your radiologist can then interpret. A "dye" (contrast medium) is sometimes injected through a vein to enhance the contrast of the image. (This liquid contains iodine, so before the test begins you will be asked if you are allergic to iodine.)

CT Scanner and PET Scanner, What's the Benefits?

There are many kinds of scanning devices that can be undertaken to study the complete human body. There are large numbers of people who have been treated in a precise and excellent manner due to perfect identification of various kinds of medical conditions in a rapid manner. The 2 important scanners that play an important role in the identification of possible lung cancer are the CT scanner and PET scanner.

These scanners can be used separately or in combination with each other to derive results that will provide a good deal of information about cancer. Many kinds of results such as growth rate of cancer cells, metabolic activity of cancer cells and many more can be established with the help of this technique. The following space contains details about CT scan and PET scan that can be of great use in identifying various kinds of information

This technique makes use of x rays to study the human anatomical structure. This device makes it possible to study various cells and tissues that are present in the body. The portions that are subjected to cancer cell will show different indication from that of other cells. The x rays will be selected in such a manner they will not penetrate deep into the body. This will also be of great use for real time applications since there will be no invasion of these particles in the body. The whole process is risk and pain free.

This specific technique is used to identify the presence of cancer cells and can also be used in an effective manner to study about various developments of cancer cells that occur. The principle of this device is that it can be used in an effective manner to study metabolic activity of cancer. The study of metabolic activity of cancer cells will provide good deal of information about spreading of cancer and suitable treatment that can be used to acquire a proper solution.

Document Scanning

Document Scanning, the most versatile of document recording equipment, these are ideal for smaller offices or business but also come in large commercial formats. They can scan individual documents or be set up to process large volumes as well. Each recorded document is saved as a separate file and electronic versions of documents, images and records can all be produced. Used within financial circles and government departments for recording post arrivals.

Digitized Microfiche

Digitized Microfiche, developed in the 1830's for many years microfiche has been used as one of the main processes for storing large volumes of data. Each 105mm x 148mm film holds 270 miniature frames, each the equivalent to one page of information. These can then be individually read through on a microfiche reader, by manipulating the microfiche slide you can search the files. It is also possible these days to produce digitized microfiche plates, which can be separately index and scanned through individually. Popularly used by libraries and newspapers to archive material for reuse at a later date without taking up excessive space within a building.

Digitized Microfilm, like microfiche, microfilm is used for the preservation and archiving of documents. Images are reduced and exposed onto 35mm film, which are then viewed through a microfilm viewer. These differ from microfiche in that they are stored on a reel spool and contain the images in a constant loop without the need to constantly change films for viewing. You simply have to scroll through the reel. These too can nowadays be digitized into an electronic format so that searching, storage and reading is far more simple and space saving.

Scanning Devices

Invoice scanning, retail and accounting are useful, these devices make recording and processing of financial transactions easier produces electronic versions of the proof of delivery, launch in market. Invoice scanning equipment can be programmed to automatically identify common areas such as the purchase price, customers VAT details.