The quality of MRI images can be affected by the Radiofrequency (RF) noise generated by the Linear Accelerator (LINAC), causing artifacts or noise in the images. Additionally, LINAC components like the accelerator or collimators can lead to inhomogeneity of the main magnetic field, further deteriorating imaging quality.

MRI is utilized to assess the effects of radiation treatment, providing valuable insights into the treatment outcomes. It plays a crucial role in monitoring and evaluating the impact of radiation therapy on patients.

In February 1882, Nikola conceptualized the idea of a rotating magnetic field, which later laid the foundation for the creation of a device that became essential in medical imaging, known as Magnetic Resonance Imaging (MRI).

Isidor Rabi demonstrated the principles of nuclear magnetic resonance in 1938 by passing a beam of particles through a magnetic field and showing that it can emit radio-waves at frequencies dependent on the charge of the particles and the magnetic field strength.

Fundamental research supported by NSF in the 1940s led to the development of Magnetic Resonance Imaging (MRI) technology. MRI is now widely used in hospitals for detecting tumors, internal tissue damage, and investigating differences in brain tissue.

In 1944, Isidor Isaac Rabi was awarded the Nobel Prize for his resonance method for recording the magnetic properties of atomic nuclei. His groundbreaking work laid the foundation for magnetic resonance imaging (MRI) technology.

In 1946, Edward Purcell and Felix Bloch independently found a way to study the magnetic resonance properties of atoms and molecules in solids and liquids, leading to the development of nuclear magnetic resonance. This laid the groundwork for the imaging technique used in MRI for medical diagnosis.

In 1950, Hahn published a paper on spin echoes, a phenomenon in magnetic resonance imaging that revolutionized the field by allowing for enhanced signal detection and imaging techniques.

In 1959, Jay Singer conducted studies on blood flow by measuring NMR relaxation times of blood in living humans, laying the groundwork for future applications in medical imaging.

In 1960, Vladislav Ivanov filed a patent application for a Magnetic Resonance Imaging device, proposing the use of magnetic field gradients to encode spatial coordinates, a crucial step towards modern MRI technology.

In 1968, Jackson JA and Langham WH developed a whole-body NMR spectrometer, as published in Rev Sci Instrum. This innovation marked a significant advancement in the field of nuclear magnetic resonance.

In 1969, Raymond Damadian proposed an MR body scanner, a significant step towards the development of MRI technology.

Perfusion MRI techniques, including first-pass DSC-enhanced MR perfusion and dynamic contrast-enhanced (DCE) MR perfusion, were developed to obtain perfusion-related parameters using gadolinium-based contrast agents.

In a March 1971 paper, Raymond Damadian reported the ability to distinguish tumors from normal tissue using NMR, marking a significant advancement in the potential diagnostic capabilities of MRI.

In September 1971, Paul C. Lauterbur developed a mechanism to encode spatial information into an NMR signal using magnetic field gradients, which led to the invention of MR imaging.

In 1972, Raymond Damadian filed the first patent for MRI technology, marking a crucial milestone in the history of MRI development.

In March 1973, Paul C. Lauterbur published the theory behind MR imaging, further advancing the understanding and application of this technology.

In January 1974, Paul Lauterbur published the first nuclear magnetic resonance image and the first cross-sectional image of a living mouse.

In 1975, Mansfield and Grannell explored diffraction and microscopy in solids and liquids using NMR, as detailed in Phys Rev B. Their research expanded the applications of nuclear magnetic resonance.

In 1976, Damadian and his team introduced Field Focusing Nuclear Magnetic Resonance (FONAR) which allowed for the visualization of a tumor in a live animal using NMR technology.

On July 3, 1977, Dr. Raymond Damadian achieved the first human NMR image, which revealed detailed cross-sections of the chest. This groundbreaking development paved the way for the modern magnetic resonance imaging (MRI) technology.

In 1978, Dr. Raymond Damadian founded FONAR Corporation, which later produced the first commercially available MRI machine in 1980. This marked a significant step in making MRI technology more accessible for medical diagnostics.

In 1979, Richard S. Likes filed a patent on k-space with U.S. patent 4,307,343.

On 28 August 1980, John Mallard's team at the University of Aberdeen obtained the first clinically useful image of a patient's internal tissues using MRI, identifying a primary tumor in the patient's chest, an abnormal liver, and secondary cancer in his bones.

Professor Z. H. Cho was invited to contribute to a manuscript due to his significant contributions to the field of MRI over the past 40 years.

In 1982, Paul Bottomley performed the first localized MRS in the human heart and brain after building the first high-field MRI/MRS scanner.

Since 1983, DSC perfusion MRI has been applied to evaluate tumors, providing insights into tumor grade, recurrence, and postoperative changes.

The Korean Advanced Institute of Science and Technology developed the first MRI system in 1984, which was installed at Shin Hwa Hospital in Seoul, Korea. The MRI scanner used a 0.2 T permanent magnet, limiting its use for clinical studies at that time.

In 1985, MR imaging of the brain was introduced, revolutionizing the diagnosis and understanding of neurological conditions.

In 1986, Dumoulin and Hart developed MR angiography at General Electric, revolutionizing the imaging of blood flow.

In 1987, the first commercial MRI, Spectro-20000 by Goldstar, was installed in Seoul University Hospital. This MRI system featured a 2.0 Tesla superconductivity magnet.

In 1988, MRI became the preferred diagnostic tool over CAT scanners in clinical medicine, particularly for diseases affecting soft tissues.

In 1989, Le Bihan developed Diffusion MRI, which is now a well-established technique used in routine clinical practice to identify and characterize lesions.

Various parallel imaging techniques such as SMASH, SENSE, and GRAPPA were developed to reduce scan times by acquiring a reduced amount of k-space data with an array of receiver coils.

A novel fast MRI technique known as GRASE imaging, utilizing gradient and spin-echo, was introduced in 1991.

In 1992, MR-guided focused ultrasound surgery was introduced as a technique to perform surgery using ultrasound waves guided by magnetic resonance imaging.

In 1993, MRI-guided noninvasive ultrasound surgery was developed as a method for performing surgery without invasive procedures, guided by magnetic resonance imaging.

In 1994, a technique called half fourier acquisition single shot turbo spin echo enabled image acquisition in a second.

A technique for precise and fast temperature mapping using water proton chemical shift was introduced in 1995, enhancing the accuracy of temperature measurements in medical imaging.

In 1996, body MRI using Iterative Decomposition of Water and Fat with Echo Asymmetry and Least-squares Estimation (IDEAL) technique was introduced, allowing for improved tissue characterization and lesion detection.

In 1997, Sodickson DK and Manning WJ introduced the concept of simultaneous acquisition of spatial harmonics (SMASH) for fast imaging with radiofrequency coil arrays.

Buxton RB, Frank LR, Wong EC, Siewert B, Warach S, and Edelman RR proposed a general kinetic model for quantitative perfusion imaging using arterial spin labeling in 1998.

Pruessmann KP, Weiger M, Scheidegger MB, and Boesiger P developed SENSE in 1999, a technique for sensitivity encoding in fast MRI.

The National Science Foundation (NSF) provided research support for various areas crucial to the advancement of MRI technology, including electromagnetics, digital systems, computer engineering, biophysics, and biochemistry.

A feasibility study on MR imaging-guided focused ultrasound surgery for fibroadenomas in the breast was conducted in 2001, exploring the potential of this non-invasive technique.

Griswold MA, Jakob PM, Heidemann RM, Nittka M, Jellus V, and Wang J introduced GRAPPA in 2002, a method for generalized autocalibrating partially parallel acquisitions.

In 2003, chemist Paul C. Lauterbur and physicist Sir Peter Mansfield were jointly awarded the Nobel Prize in Physiology or Medicine for their pioneering work in magnetic resonance imaging (MRI). Their contributions revolutionized medical diagnostics.

Tournier JD and team developed a method in 2004 to estimate the fiber orientation density function directly from diffusion-weighted MRI data using spherical deconvolution.

A study conducted in 2005 focused on using multi-echo acquisition for time-resolved undersampled projection reconstruction magnetic resonance imaging of the peripheral vessels.

In 2007, Korea developed one of the world's most advanced PET-MRI systems by constructing a hybrid system with 7.0 T MRI and PET. This initiative followed the introduction of the UHF 7.0 T MRI system in Korea.

In 2008, Wedeen VJ and colleagues introduced DSI tractography, a technique that allows mapping of crossing fibers in the brain using diffusion MRI data.

Bullmore E and Sporns O in 2009 conducted graph theoretical analysis of complex brain networks, providing insights into the structural and functional connectivity of the brain.

SMS pulse sequence applies a multiband composite RF pulse with a slice-selective gradient to simultaneously excite multiple slice planes, allowing for faster imaging.

A technique introduced in 2011 for studying chemical exchange processes in MRI, allowing for the detection of specific molecules and metabolites in tissues.

In 2012, a noninvasive central lateral thalamotomy for chronic neuropathic pain was performed using transcranial magnetic resonance imaging-guided focused ultrasound, offering a new approach to managing the condition.

In 2013, a proof-of-concept study was conducted on MR-guided focused ultrasound thalamotomy for essential tremor, showing promising results in the treatment of the condition.

MRF technique allows simultaneous and efficient measurements of multiple tissue properties with one acquisition by varying acquisition parameters throughout the scan.

The study focused on using PET/MRI to assess diffusion-weighted imaging, MR spectroscopy, and glucose metabolic activity in pancreatic and periampullary cancer patients to determine clinical stage and prognosis.

The dynamic contrast-enhanced (DCE) MR perfusion technique utilizes gadolinium-based contrast agents to map permeability-related parameters such as Ktrans and Kep, along with volume fractions like vp and ve, using a pharmacokinetic model.

In 2018, a study focused on treating major depressive disorder using magnetic resonance-guided focused ultrasound surgery, showcasing the potential of this technique in mental health treatment.

An evaluation of the impact of cerebrospinal fluid on chemical exchange saturation transfer maps obtained from the full Z-spectrum in the elderly human brain.

The article provides a historical overview, technical advancements, and clinical uses of Magnetic Resonance Imaging.

Exploration of the lack of MRI availability in low- and middle-income countries.

Study on the correlation between radiologist age and diagnostic errors.

An update on techniques and image quality improvement in prostate MR imaging.

Discussion on low-field MR imaging and its applications.

A case report and review of the literature on a venous anomaly leading to obstructive hydrocephalus.