Define in brief about the term - mri, Biology

Assignment Help:

Define in brief about the term - MRI

MRI is a more recent development that was initially introduced as a rival to CT. The technique itself is complex, relying on measurement of the response of hydrogen atoms to radio waves in very strong magnetic field. The MRI scanner measures the tiny magnetic fields that the spinning hydrogen atoms produce, and since the density of hydrogen varies in different types of tissue, the scan data can be computer-processed to generate images. The entire brain can be imaged in successive slices, which can be produced in saggital (side), coronal (front) or horisontal transverse planes. The high resolution of MR images (in comparison with CT images) is a major plus point. A second advantage is that participants are not exposed to radiation sources.

 


Related Discussions:- Define in brief about the term - mri

What are the vascular bundles, What are the vascular bundles? How does conf...

What are the vascular bundles? How does configuration of the vascular bundles within the stem differentiate monocots from dicots? The Vascular bundles are segments of xylem and

Define precautions for testing quality of water, Define Precautions for Tes...

Define Precautions for Testing Quality of Water? 1. Handle the sewage water with care as it may contain enteric pathogens. 2. Sewage and pond water should be shaked before i

Write the positive ion isoelectronic with neon, Write the positive ion isoe...

Write the positive ion isoelectronic with neon The positive ion isoelectronic with neon must have 10 electrons and 11 protons, and thus must have an  atomic number = 11. This i

Oxidation of pyruvate to acetyl coa, OXIDATION OF PYRUVATE TO ACETYL CoA ...

OXIDATION OF PYRUVATE TO ACETYL CoA The oxidation of  pyruvate  to acetyl CoA is  the irreversible route from glycolysis  to the citric acid cycle. What is citric acid cycle?

Define rna synthesis , The general mechanism of RNA synthesis by these euk...

The general mechanism of RNA synthesis by these eukaryotic RNA polymerases is the same as for the prokaryotic enzyme that is: ?   The initiation  of RNA synthesis  by RNA polyme

Find initial osmotic pressure on room temperature of a cell, Find the initi...

Find the initial osmotic pressure at room temperature of a cell if the only ions present are CaCl2 on either side of the membrane. Assume the concentrastions for K+ and Cl- from Ta

Bubble oxygenators type of oxygenators , Bubble Oxygenators: These ha...

Bubble Oxygenators: These have a mixing chamber where venous blood is collected and from the bottom end micro bubbles of oxygen are passed and as they rise to the top, gas ex

Zoology, general features of protochordates

general features of protochordates

Sub xyphoid pericardial window -types of surgery, Sub Xyphoid Pericardial W...

Sub Xyphoid Pericardial Window :  It could be done under local or general anaesthesia. A small vertical midline incision is made over the xyphoid process on to the linea alba

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd