Download Breast MRI: Fundamentals and Technical Aspects by R. Edward Hendrick PhD, FACR (auth.) PDF
By R. Edward Hendrick PhD, FACR (auth.)
Breast MRI has emerged as a useful diagnostic adjunct to mammography and breast ultrasound within the detection of basic and recurrent breast cancers and as an incredible screening software in girls at excessive danger for breast melanoma. nonetheless, many radiologists who depend upon MRI would not have wisdom of the basics necessary to attaining and holding excessive photo caliber. With a spotlight at the simple imaging ideas of breast MRI instead of on mathematical equations, this publication takes a realistic method of breast imaging that is helping radiologists enhance their breast MRI protocols. The textual content walks the reader throughout the fundamentals of MRI, making it in particular available to newbies. From an in depth define of kit must haves for acquiring prime quality breast MRI to directions on find out how to optimize snapshot caliber, accelerated discussions on how one can receive optimized dynamic info, and examples of excellent and undesirable imaging innovations, the publication covers the themes correct to appearing prime quality breast MRI. by way of proposing the most important features of breast MRI in a simple demeanour and with transparent photographs, this sensible booklet merits all practitioners looking to bring up their operating wisdom and competence in breast MRI, and is additionally of worth to citizens getting ready for board tests in diagnostic radiology.
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Additional info for Breast MRI: Fundamentals and Technical Aspects
The techniques of dividing tissue into voxels to produce MR images will be discussed in Chapter 3. This chapter describes tissue relaxation times that provide the contrast seen in MR images. Relaxation times are strictly MR-based parameters that describe the re-growth of longitudinal magnetization (T1) and loss of transverse magnetization (T2) after a radiofrequency (RF) pulse flips magnetization out of alignment with the externally applied static magnetic field, B0. 1,2 Based on their work, equipment to perform quantitative NMR was developed and refined.
Paul C. 1 Most physicists at the time believed this to be impossible, due to the general principle that spatial resolution is limited by the wavelength of the electromagnetic radiation used as a probe. 04 meters), which would make studying details in the human body impossible. Lauterbur correctly recognized and demonstrated that this limitation, while applying to scattering experiments, was cleverly overcome by using magnetic field gradients to localize signals in NMR. He called his new technique “zeugmatography”.
The precession of magnetic dipole moments around the direction of the magnetic field at the Larmor frequency causes tissue magnetization to induce an alternating electric current in a nearby receiver coil, enabling signal measurement. References 1. al. Magnetic Resonance Imaging: Physical Principles and Sequence Design. New York: John Wiley & Sons, 1999. 2. Hendrick RE. Physics and technical aspects of breast MRI. ” Oak Brook, IL: RSNA Publications, 2004, p. 259–278. 3. Stark DD, Bradley WG, eds.