1.5T Volume MRI 1.5T Volume MRI

1.5T Volume MRI

The advanced technologies of MRI machines help give you the power to explore new horizons in imaging.

About 1.5T Volume MRI

In 1997, Mahajan Imaging & Labs introduced the first 1.5 Tesla MRI in a stand-alone facility in India. Our diagnostic center is equipped with the latest high-definition 1.5 Tesla MRI system from GE Healthcare, and all MR examinations, including ultrafast sub-second scans, are routinely performed.

With the combination of up-to-date technology and a customer-centric environment, we make it easy for even uncooperative patients to go through the MRI scan without any challenges.

Types of MRI

Functional MRI

Functional MRI (MRI) measures signal changes in the brain that are due to changing neural activity and is also referred to as BOLD imaging (Blood oxygen level dependent).

A person’s brain is scanned while he or she is performing a certain physical task, such as squeezing a ball or looking at a particular type of picture. When the neural activity is increased, there is an increase in oxygen demand, and the vascular system actually overcompensates for this, increasing the amount of oxygenated haemoglobin relative to deoxygenated haemoglobin.

Such techniques are being used in pre-surgical planning and in basic neuroscience research in areas such as memory, expressive and receptive speech, visual-spatial processing, and other cognitive processes.

Diffusion MRI

Diffusion-weighted images are very commonly used in the assessment of acute stroke and are also widely used in oncology.

Diffusion Tensor Imaging, also known as MR Tractography non-invasively maps white matter tracts. Diffusion parallel to nerve fibers has been shown to be greater than diffusion in the perpendicular direction. This provides a powerful tool to study in vivo fiber connectivity in the brain in a noninvasive manner and preoperative planning of resectability of brain tumors. The application of this technique to stroke, Alzheimer's disease, and pediatric brain development is being investigated.

MR Angiography (MRA)

MR angiography is used to generate pictures of the arteries to detect any abnormal narrowing/dilatation or abnormal arterio-venous connections. MR angiography is often used to evaluate the arteries of the neck and brain, the thoracic and renal arteries, and the arteries of the legs. Magnetic Resonance Venography (MRV) is a similar procedure used to image veins.

MR Spectroscopy (MRS)

MR spectroscopy is a noninvasive method for providing metabolic information about the brain. MR spectroscopy enables tissue characterization on a biochemical level that surpasses conventional MR imaging. MR spectroscopy also detects abnormalities that are invisible to conventional MRI because metabolic abnormalities often precede structural changes.

MR Defecography

MR defecography is a technique to study disorders of ano-rectal function. It is indicated in patients having constipation, rectal incontinence, painful defection and rectal prolapse. It permits analysis of the ano-rectal angle, the opening of the anal canal, the function of the puborectalis muscle, and the descent of the pelvic floor during defecation. It provides a good demonstration of the rectal wall, intussusception, enteroceles and rectoceles, along with an excellent demonstration of the perirectal soft tissue. It allows the assessment of spastic pelvic floor syndrome and descending perineum syndrome. No radiation hazard is associated with this procedure, as there was with fluoroscopic x-ray defecography. Images are obtained with the patient at rest, at maximal sphincter contraction, during straining, and during defection.

MR Mammography

Although X-ray Mammography remains the primary imaging modality in the evaluation of breast disease, the mammogram can at times be inconclusive for the presence or location of an abnormality. MR imaging has been used as an adjunct to mammography, particularly for patients with equivocal mammographic findings. The main advantage of breast MR imaging is its high sensitivity, with reported sensitivities for cancer ranging from 91% to 100% with varying specificity. Multiple investigators have shown that MR mammography may be useful to verify the multifocality and multicentricity of breast cancer, differentiating scars from recurrences after breast-conserving therapy, screening high-risk groups who have a family history of breast cancer, investigating breast implants, examining breasts in cases of histologically proven breast cancer, and detecting metastases from an unknown primary.

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Fortis Hospital: Aruna Asaf Ali Marg, Pocket 1, Sector B, Vasant Kunj, New Delhi-110070

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Pushpawati Singhania Research Institute (PSRI): Pocket J, Sheikh Sarai Phase II, New Delhi-110017

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Fortis Escorts Hospital, Jaipur

Fortis Escorts Hospital: Sector 5, Malviya Nagar, Jaipur, Rajasthan-302017

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