TODAY -

Magnetic Resonance Imaging (MRI)

Dr Momocha Thangjam *

Philips MRI in Sahlgrenska Universitetsjukhuset, Gothenburg, Sweden.
Philips MRI in Sahlgrenska Universitetsjukhuset, Gothenburg, Sweden :: Pix - Wikipedia/Jan Ainali



Magnetic resonance imaging (MRI) is a radiological investigation that uses magnetic field and pulses of radio wave energy to make pictures of organs and structures inside the body. The MRI scanner is a tube surrounded by a giant circular magnet. The patient is placed on a movable bed that is inserted into the magnet.

The magnet creates a strong magnetic field that aligns the protons of hydrogen atoms of the body, which are then exposed to a beam of radio waves. This spins the various protons of the body producing a faint signal that is detected by the receiver portion of the MRI scanner which is then processed by a computer to produce an image.

Damadian, an Armenian-American physician along with Minkoff and Goldsmith performed the first MRI body scan of a human being on July 3, 1977.

WHY IT IS DONE?

MRIis done for diseases affecting various organs of the body:
o Head- To look for brain tumours, bleeding,stroke and diseases of the eyes and ears.
o Chest Assess the heart and for breast cancer.
o Abdomen and pelvis -To look for liver cancer, gallbladder stones and cancer, diseases of kidneys, uterus, ovariesand prostate.
o Bones and joints For problems such asarthritis,bone tumours,ligaments or tendons tear, or infection.
o Spine-For conditions such as disc prolapse and cancer.
o Blood vessels- For vessel diseases and assess blood flow through them.

HOW TO PREPARE FOR THE TEST?

It is advisable to inform the technologist/ radiologist beforehand if one has fear of closed spaces (have claustrophobia). A medicine may be given to reduce the anxiety. Before an MRI scan, the patientshould alsoinform the radiology technologist/ radiologist if he/she has artificial heart valves, aneurysm clips,pacemaker,inner ear (cochlear) implants or has worked with sheet metal in the past as the magnetic field can affect them and be hazardous to the patient.

Because the MRI contains strong magnet, metal objects such asjewellery, watches, credit cards, and hearing aids are not allowed into the room as they can be damaged.Pens, pocketknives and clips should also be removed as they may fly across the room.

In case a contrast study is required, a blood test is to be done to check for creatinine level as it is possible for the contrast dye to cause organ damage in people with kidney disease. Contrast study is avoided if creatinine is above the normal level.

HOW IS THE TEST PERFORMED?

The patient will be asked to wear a hospital gown and lie on a narrow table, which slides into a large tunnel-shaped scanner. At certain times during the scan, the scanner will make loud tapping noises. This is the electric current in the scanner coils being turned on and off. Earplugs or headphones can be used for blocking the noise.It is very important that the patient keeps as still as possible during the scan. The scan usually lasts between 15 and 90 minutes, depending on the size of the area being scanned.

During the test, a friend or family member may be allowed to stay in the room- especially for paediatric patients. The accompanying person also need to follow the same guidelines regarding clothing and removing metallic objects. The technologist monitors the patient through a window during the scan. Patient can communicate with the technologistthrough a two-way intercom.

Some examinations require a special dye (contrast) to be given through a vein before the test. The dye helps the radiologist see certain areas more clearly.

Small devices, called coils, may be placed around the head, arm, or leg, or other areas to be studied. These help improve the quality of the images.

The final images are interpreted by a radiologist.

RISKS

MRI is very safe and most people can have the procedure, including pregnant women and babies asit does not use ionising radiation.

Allergic reactions rarely occur with the MRI dye (Gadolinium). However, gadolinium can be harmful to people with kidney problems.

The strong magnetic fields created during an MRI can cause heart pacemakers and other implants not to work and also cause a piece of metal inside the body to move or shift.

No effects of MRI on the foetus have been demonstrated. However, as a precaution, current guidelines recommend that pregnant women undergo MRI only when essential. This is particularly the case during the first trimester of pregnancy.


* Dr Momocha Thangjam wrote this article for The Sangai Express
Dr Momocha Thangjam, DMRD, DNB is Consultant Radiologist, BABINA Diagnostics, Imphal
This article was posted on January 19, 2017.


* Comments posted by users in this discussion thread and other parts of this site are opinions of the individuals posting them (whose user ID is displayed alongside) and not the views of e-pao.net. We strongly recommend that users exercise responsibility, sensitivity and caution over language while writing your opinions which will be seen and read by other users. Please read a complete Guideline on using comments on this website.




LATEST IN E-PAO.NET
  • Ningol Chakkouba @Kolkata :: Gallery
  • Tourism Day @ Phayeng #1 :: Gallery
  • Stories from Kuki-Naga Conflict: Book Rvw
  • Liberation War And Merger : Part 2
  • The premature bloom
  • Black Panther: Melanistic form of leopard
  • 11th Indo-Myanmar RBC Meet at Imphal
  • Press Conference of 5th North East Festival
  • Appeal to not organize Thabal Chongba
  • Need to raise a united voice
  • Still an uncertain generation
  • Ningol Chakkouba @Sikkim :: Gallery
  • Songoulun, Lamgousang, Yinmajo: eMing
  • Chakkouba Shopping #2 :: Gallery
  • Hill Tribe and Valley tribe
  • Demand of ST & ensuing recriminations
  • NGOs & rural development in Manipur
  • Ningol Chakkouba at Tulihal COB
  • Condemns murder of scribe in UP
  • Indo-Naga Talks 2017 :: News Timeline
  • Zeliangrong's convention postponed
  • Mary Kom in Assam ring
  • Sports : Year long activity in Manipur
  • Ningol ChakKouba @MBC #1 :: Gallery
  • Houchongba Opening Ceremony :: Gallery
  • Thank God I didn't choose you :: Poem
  • Waking up at night
  • Remembering Jesus: Christian values..
  • Dharna on recognition of NPF Chief Whip
  • Recap of Current Nagaland Political Crisis
  • Legal opinion on NPF whip
  • Ningol Chakkouba celebrated in Manipur
  • Congress 'defectors' left in the lurch
  • 6 Naga groups form body to join peace
  • Nagas still have many years to be mature
  • Prelude to what we need to know 2!!
  • Ningol to her mapam lamdam :: Gallery
  • Chakkouba Fish Mela #1 :: Gallery
  • Ningol Chakkouba Tribute : Flash
  • 'Merger Agreement' and Manipur Question
  • Should fake news be merely brushed away
  • Frozen street laws & nasty people..
  • Resolution of CEC, NPF : Oct 20
  • Concern over meeting btn China, NE ultra
  • Materialistic interpretation of Chakkouba
  • Of power and the powerful
  • Manipuri Calendar for 2018 : Download it
  • Chakkouba Shopping #1 :: Gallery
  • Ningol Chakouba : A message
  • 2 novel TB drugs move into human studies
  • Japan & its myriad culture from my eye
  • Cry of a Dying River- 5 :: Poem
  • Thanksgiving for first Naga woman pilot
  • Manipuri film nominated for APSA, Brisbane
  • NPF whip - the plain truth
  • Subterfuge & money cannot buy the law
  • Pearls of wisdom from Dalai Lama
  • Resisting Partisanship
  • Mera Men Tongba :: Gallery
  • Liberation War And Merger : Part 1
  • Diwaligi Ahingdo :: Wari
  • Exploding cyber crime in India
  • Manipur National Day- 18 October 1948
  • Greetings on Diwali & Ningol Chakkouba
  • TSA DJ Theme Song , DJ icon audition
  • Meghalaya Venue & Daywise Lineup
  • Tasked to monitor talk: Koijam-Himalay
  • Looking beyond the tough words
  • Rejoinder to deserted NPF Group Longleng
  • CM honors U-17 WC Footballers :: Gallery
  • I don't want to die before I am dead : Poem
  • Is the 'Fear for Qur'an' Being Traded ?
  • MUTA Series 4 : Who supports Whom?
  • What ails Manipur ?
  • Old Age pension Scheme details uploaded
  • Increased privilege for responsibility
  • Culturals @ Mera Houchongba #1 :: Gallery
  • Seven Years Devastation: Book Review
  • Matos bhai & our FIFA boys "bravo"
  • Trafficking vis-a-vis Domestic Work
  • An open letter to Chief Minister
  • DG Assam Rifles calls on Chief Minister
  • Nagaland press firm against intimidation
  • No Aadhaar, No Mid-day Meal stand
  • The good, the bad and the ugly
  • Footballer: U-17 World Cup :: Gallery
  • Kwak Tanba #3 :: Gallery
  • Night Plaza: Outlook of a developing Manipur
  • Biased national media
  • Agri-volatic: boosting agricultural income
  • Natural skin glow for Diwali
  • Eleven LPG refills in 4 months !
  • 'No change in territorial boundary of States'
  • MaiOn (scenes) #1 :: eRang
  • Tune out within dark
  • Loktak: Storm brain before blasting barrage
  • Gojilove : Now In Manipur
  • Fighting a losing battle
  • A Poem for My Wife :: Poem
  • October 15 retrospection
  • E Sonamani: Jnangarima Manad Alankaran
  • 11th Mega Marathon Manipur #5 :: Gallery
  • Langbal Keithel @ Kangjeibung #4 :: Gallery
  • Geo-politics & Skill Devlp in Act East Policy
  • Wildlife Week: Working together for wildlife
  • Letter to ATSUM (Reply to rebuttal)
  • A rebuttal to "Imprudence of ATSUM"
  • Don't sleep with minor wife ruling: Rapist
  • Awaited expectation
  • Journey of Amur falcon #2
  • Irabot Day - March Past #2 :: Gallery
  • Buddha's Metta & Karuna #2
  • Hei-kak: An aquatic cash crop in Manipur
  • Flood prevention and mitigation
  • Unearthing gems: Northeast Diva 2016-17
  • Nagaland Whip issue hearing in the court
  • Of Leikhom Leinang & Uphul Waiphul: NH-2
  • March: Mera Houchongba #2:: Gallery
  • AMAND Pune: Annual Cultural #2:: Gallery
  • Langol Tourist Watch Tower #7 :: 360 ° View
  • .. end AIDS by 2030: Are we on track ?
  • Career in Tourism - Part 2
  • Which one should precede- ILPS or ST ?
  • Comedian Audition during Night Plaza
  • Seizure of Dried Fish Grenet (Tirkiya)
  • LPG diversion: Non-local in subscribers list
  • For a little bit more
  • Pot Lannaba: Houchongba #1 :: Gallery
  • Crowd @ World Tourism Day :: Gallery
  • Moreh PWD complex controlled by militants
  • FIFA U-17 : A milestone for NE football
  • Post submergence impacts of Mapithel dam
  • Cry of a Dying River - 4 :: Poem
  • Program on World Mental Health Day
  • Out but not down :: Needed : A strong Cong
  • Redefining 'Manipuri'
  • Imphal Evenings- Night plaza #2 :: Gallery
  • FIFA U-17 Profile :: Kh Ninthoinganba
  • Keithel Lairembi Ima #3 :: Gallery
  • Observation of World Mental Health Day
  • Ruskin Bonding - VI
  • Life - A Bubble :: Poem
  • Mapung fana chathari
  • Surgical Closure of 'Hole in the Heart'
  • Inferred or in B/W? Integrity Vs integration
  • Imphal is changing but traffic a menace
  • Kwak Tanba #2 :: Gallery
  • FIFA U-17 Profile :: Thounaojam Jeakson
  • Langbal Keithel @ Kangjeibung #3 :: Gallery
  • NE Fashion Week @ Dimapur:: Gallery
  • Journey towards Breaking the Shackles
  • The Man Who Saw Tomorrow :: Poem
  • Free Medical Camp at Lilong
  • From Nobap to World Cup: Magnificent 8
  • Journey of Amur falcon #1
  • FIFA U-17 Profile :: Nongdamba Naorem
  • Lamyanba Irabot- Birth Anniv #2:: Gallery
  • 11th Mega Marathon Manipur #4 :: Gallery
  • FIFA U-17: US won but we were lauded more
  • Imprudence of ATSUM
  • Tonsuring the nature
  • March: Mera Houchongba #1:: Gallery
  • FIFA U-17 Profile :: Dheeraj Moirangthem
  • AMAND Pune: Annual Cultural #1:: Gallery
  • Research Line : Book release Function
  • 100 Yrs Of Tangkhul Naga Football
  • Make RIMS shining
  • Another NE Youth Missing in the Capital
  • AMAND, Pune : 6th AGM / Annual Cultural
  • Sadar Hills District Demand: News Timeline
  • Nungshibi : Social Networking :: Website
  • Seeking 2 years time: Too early to judge
  • Let Holy books be replaced by Constitution
  • FIFA U-17 Profile :: Amarjit Kiyam (Captain)
  • FIFA U-17 Profile :: Thangjam Boris
  • FIFA U-17 Profile :: Wangjam Suresh
  • FIFA U-17 Profile :: Md Shahjahan
  • Loktak Folklore Museum- for fishing
  • Opening: Imphal Evenings :: Gallery
  • Mayanglambam Gourachandra: Awardee
  • Win the hearts if not the FIFA Cup
  • Cry of a Dying River #3 :: Poem
  • For the 8 football players of Manipur..
  • Article 342 makhada furup amana ST ki list
  • ATSUM against ST: Let the experts decide
  • A matter of concern for the future
  • Irabot Day - March Past #1 :: Gallery
  • Bor khoiramba @ Hiyangthang #2 :: Gallery
  • Manipur Have done it again
  • Hingchabi Changba: Possessed/ Exorcism
  • Tourism as career option
  • Hydro Electric Power: A must for Manipur #4
  • The Killing Fields :: News Timeline
  • Imphal Evenings- Night plaza #1 :: Gallery
  • Keithel Lairembi Ima #2 :: Gallery
  • Doren: 'Theatre of the Earth' wins in Kerala
  • Solo Album Launch of Awarthanga Chiru
  • How Manipur missed internal autonomy..
  • Nitya Raas, Ras Leela Fest #1 :: Gallery
  • 11th Mega Marathon Manipur #3 :: Gallery
  • Lamyanba Irabot- Birth Anniv #1:: Gallery
  • Irabot Day Celebration at New Delhi
  • Inner Line Permit (ILP) Demand : Timeline
  • Irabot Day Celebration (2017)
  • 'Maniwood' vs 'Haolywood' Football :: Gallery
  • Death Anniv- Bhagyachandra #5 :: Gallery
  • Featured Photo for 2017 #4 :: Gallery
  • Nangna Helli Nungshiba #1 :eRang
  • Manipur Sangai Festival 2016 #6 : Ooba
  • Priyogopal : Senior Film Artist :: eRang
  • Heitha Leithaba @Kekrupat #2:: Gallery
  • Eyek Tamba :: Learn Manipuri script
  • Old Manipuri Movie #1 :: eRang Classic
  • Landscape of Manipur #7: Wallpaper
  • SPONSORED ADS