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All the centres operating within the Metamed platform offer the full range of diagnostic imaging services. These include:




Magnetic Resonance Imaging (MRI), is a medical diagnostic imaging technique used in radiology to investigate the anatomy and physiology of the human body in both health and disease. MRI scanners use strong magnetic fields and radio waves to form images of the body. The technique is widely used by specialist doctors in diagnostic imaging centres and hospitals for medical diagnosis of various medical conditions.




This is a technology that uses computer-processed x-rays to produce tomographic images (virtual 'slices') of specific areas of the body, allowing a view to what is inside it without cutting it open. In Medical imaging CT cross-sectional images are used for diagnostic and therapeutic purposes in various medical disciplines.

There are several advantages that CT demonstrates over traditional X-Ray. First, CT completely eliminates the superimposition of images of structures outside the area of interest. Second, because of the inherent high-contrast resolution of CT, differences between tissues that differ in physical density by less than 1% can be distinguished. Finally, data from a single CT imaging procedure consisting of either multiple contiguous or one helical scan can be viewed as images in the axial, coronal, or sagittal planes, depending on the diagnostic task.

CT is regarded as a moderate- to high-radiation diagnostic technique. The improved resolution of CT has permitted the development of new investigations, which may have advantages; compared to conventional radiography, for example, CT angiography avoids the invasive insertion of a catheter. CT colonography (also known as virtual colonoscopy or VC for short) may be as useful as a barium enema for detection of tumours, but may use a lower radiation dose. CT VC is increasingly being used as a diagnostic test for bowel cancer and can eliminate the need for a colonoscopy.

The radiation dose for a particular diagnosis depends on multiple factors: volume scanned, patient build, number and type of scan sequences, and desired resolution and image quality. CT scan has been shown to be more accurate than radiographs in evaluating anterior inter-body fusion.

Usage of CT has increased dramatically over the last two decades. CT has become an important tool in medical imaging to supplement x-rays and medical ultrasonography. It is also used for preventive medicine or screening for disease, for example CT colonography for patients with a high risk of colon cancer, or full-motion heart scans for patients with high risk of heart disease. The main uses of CT in medical diagnostics are to examine:

  • Head: CT scanning of the head is typically used to detect infarction, tumours, calcifications, haemorrhage and bone trauma. Tumours can be detected by the swelling and anatomical distortion they cause, or by surrounding edema. CT scanners are very useful to investigate and diagnose cases involving stroke or head trauma.

  • Lungs: CT is used for detecting both acute and chronic changes in the internals of the lungs where conventional X-rays do not show such defects. A variety of techniques are used, depending on the suspected abnormality. For evaluation of chronic cases such as emphysema, fibrosis, etc., thin sections with high spatial frequency reconstructions are used; often scans are performed both in inspiration and expiration. This special technique is called high resolution CT. Therefore, it produces a sampling of the lung and not continuous images.

  • Pulmonary Angiogram: CT pulmonary angiogram (CTPA) is a diagnostic test used to diagnose pulmonary embolism (PE). It employs computed tomography and an iodine based contrast agent to obtain an image of the pulmonary arteries.

  • Cardiac: with the advent of faster and multi-slice CT scanners (more than 64 slices), high resolution and high speed can be obtained at the same time, allowing excellent imaging of the coronary arteries (cardiac CT angiography).

  • Abdominal and Pelvic: CT is a sensitive method for diagnosis of abdominal diseases. It is used frequently to determine stages of cancer and to follow progress. It is also a useful test to investigate acute abdominal pain.

  • Extremities: CT is often used to image complex fractures, especially ones around joints, because of its ability to reconstruct the area of interest in multiple planes. Fractures, ligamentous injuries and dislocations can easily be recognised with a 0.2 mm resolution.




X-ray images are obtained by placing a part of the patient in front of an X-ray detector and then illuminating it with a short X-ray pulse. Bones contain much calcium, which absorbs x-rays efficiently. This reduces the amount of X-rays reaching the detector in the shadow of the bones, making them clearly visible on the radiograph. The lungs and trapped gas also show up clearly because of lower absorption compared to tissue, while differences between tissue types are harder to see.

X-Ray scans are useful in the detection of pathology of the skeletal system as well as for detecting some disease processes in soft tissue. Some notable examples are the very common chest X-ray, which can be used to identify lung diseases such as pneumonia, lung cancer or pulmonary edema, and the abdominal x-ray, which can detect bowel (or intestinal) obstruction. X-rays may also be used to detect pathology such as gallbladder or kidney stones which are often visible.




This is simply an X-Ray of the mouth that is commonly used to diagnose and to find hidden dental structures, malignant or benign masses, bone loss, and cavities. It is possible for tooth decay or periodontal disease to be missed during a clinical dental exam. Radiographic evaluation of the dental and periodontal tissues is a critical segment of the comprehensive oral examination.




Medical ultrasonography uses high frequency broadband sound waves in the megahertz range that are reflected by tissue to varying degrees to produce (up to 3D) images. This is commonly associated with imaging the fetus in pregnant women. Uses of ultrasound are much broader, however. Other important uses include imaging the abdominal organs, heart, breast, muscles, tendons, arteries and veins. While it may provide less anatomical detail than techniques such as CT or MRI, it has several advantages which make it ideal in numerous situations, in particular that it studies the function of moving structures in real-time and emits no ionizing radiation.

The concepts of ultrasound differ from other medical imaging modalities in the fact that it is operated by the transmission and receipt of sound waves. It is very safe to use and does not appear to cause any adverse effects. It is also relatively inexpensive and quick to perform. Doppler capabilities on modern scanners allow the blood flow in arteries and veins to be assessed.




The DXA scan is typically used to diagnose and follow osteoporosis. It is a means of measuring bone mineral density. Dual-energy X-ray absorptiometry is the most widely used and most thoroughly studied bone density measurement technology.

DXA scans are used primarily to evaluate bone mineral density. DXA scans can also be used to measure total body composition and fat content with a high degree of accuracy comparable to hydrostatic weighing.




This is the process of using low-energy X-rays to examine the human breast and is used as a diagnostic and a screening tool. The goal of mammography is the early detection of breast cancer, typically through detection of characteristic masses and/or micro-calcifications.

Like all X-rays, mammograms use doses of radiation to create images which are analysed for any abnormalities.

At least one mammography screening every two years is recommended in women between the ages of 40 and 74.

Research indicates that repeated mammography starting at age 50 saves about 1.8 lives over 15 years for every 1,000 women screened. However, higher frequency use of mammography may result in overtreatment, and radiation exposure.




Nuclear medicine encompasses both diagnostic imaging and treatment of disease, and may also be referred to as molecular medicine or molecular imaging & therapeutics. Nuclear medicine uses certain properties of isotopes and the energetic particles emitted from radioactive material to diagnose or treat various pathology. Different from the typical concept of anatomic radiology, nuclear medicine enables assessment of physiology. This function-based approach to medical evaluation has useful applications in most subspecialties, notably oncology, neurology, and cardiology.

Gamma cameras are used in e.g. Scintigraphy, SPECT and PET to detect regions of biologic activity that may be associated with disease. Relatively short lived isotope is administered to the patient. Isotopes are often preferentially absorbed by biologically active tissue in the body, and can be used to identify tumours or fracture points in bone. Scintigraphy ("scint") is a form of diagnostic test wherein radioisotopes are taken internally, for example intravenously or orally. Then, gamma cameras capture and form two-dimensional images from the radiation emitted by the radiopharmaceuticals.

At least one mammography screening every two years is recommended in women between the ages of 40 and 74.

Research indicates that repeated mammography starting at age 50 saves about 1.8 lives over 15 years for every 1,000 women screened. However, higher frequency use of mammography may result in overtreatment, and radiation exposure.

SPECT is a 3D tomographic technique that uses gamma camera data from many projections and can be reconstructed in different planes. A dual detector head gamma camera combined with a CT scanner, which provides localization of functional SPECT data, is termed a SPECT-CT camera, and has shown utility in advancing the field of molecular imaging. In most other medical imaging modalities, energy is passed through the body and the reaction or result is read by detectors. In SPECT imaging, the patient is injected with a radioisotope (most commonly Thallium 201TI, Technetium 99mTC, Iodine 123I, and Gallium 67Ga). The radioactive gamma rays are emitted through the body as the natural decaying process of these isotopes takes place. The emissions of the gamma rays are captured by detectors that surround the body.

Positron emission tomography (PET) uses coincidence detection to image functional processes. Short-lived positron emitting isotope, such as 18F, is incorporated with an organic substance such as glucose, creating F18-fluorodeoxyglucose, which can be used as a marker of metabolic utilization. Images of activity distribution throughout the body can show rapidly growing tissue, like tumour, metastasis, or infection. PET images can be viewed in comparison to computed tomography scans to determine an anatomic correlate.




Technoscan tele-radiology centres in Cairo offers reading services to the Egyptian and Saudi (soon to be implemented) centers.

A group of competent radiologists offer unique capabilities to Technoscan centers in terms of specialized expertise, quick turnaround, and availability around the clock.

The center services are available for Technoscan centers, but may be offered to third parties in the future.

Gives patients even in remote areas access to specialist radiologists expertise that would otherwise not be available (e.g. sub-specialists in oncology or neurology)




Electroencephalography, measuring brain waves

Used to diagnose seizure, coma, stroke, memory loss




A radiograph, also known as an x-ray, is a painless and non-invasive imaging procedure that uses ionizing radiation (x-rays) to produce an image of the inside of one's body. X-rays are electromagnetic waves, like radio waves or light waves, only stronger; they can pass through most objects, whereas light waves cannot.

An x-ray examination exposes the body part in question to a small dose of x-rays. As the x-rays pass through the body, different tissues absorb different amounts of x-ray radiation. The waves that are not absorbed pass through the body onto an image plate, which absorbs the remaining waves. Bones absorb more x-rays than soft tissue, so they appear white while soft tissue appears as different shades of gray, and air appears black. Your images are sent in digital form to the radiologist to read and interpret. The physician who ordered the x-ray will also have access to the digital images.