MRI

 MRI (Magnetic Resonance Imaging) [] What is MRI?  -   A noninvasive test  -   Utilizes powerful magnetic field and radio frequency to produce an image of internal body

How does it work?  -   Works by sending current through wire coils causing a powerful magnetic field  -   Other wires in the machine detects the magnetic field bounced back from the body (specifically bounced back from Hydrogen atoms)

Advantages/Disadvantages Adv.  -   Noninvasive without contrast injection (not always, sometimes contrast material needed)  -   It’s fast and easily reviewed Disadv.  -   If sedation used then possibility of extreme sedation  -  <span style="mso-fareast-font-family: '맑은 고딕'; mso-fareast-language: KO;"> Implanted medical devices in the patient might affect the imaging <span style="mso-ascii-font-family: Calibri; mso-bidi-font-family: Calibri; mso-fareast-font-family: Calibri; mso-fareast-language: KO; mso-hansi-font-family: Calibri; msoasciifontfamily: Calibri; msobidifontfamily: Calibri; msofareastfontfamily: Calibri; msofareastlanguage: KO; msohansifontfamily: Calibri; msolist: Ignore;"> -  <span style="mso-fareast-font-family: '맑은 고딕'; mso-fareast-language: KO;"> If overdose of contrast material may cause poor kidney functions <span style="mso-ascii-font-family: Calibri; mso-bidi-font-family: Calibri; mso-fareast-font-family: Calibri; mso-fareast-language: KO; mso-hansi-font-family: Calibri; msoasciifontfamily: Calibri; msobidifontfamily: Calibri; msofareastfontfamily: Calibri; msofareastlanguage: KO; msohansifontfamily: Calibri; msolist: Ignore;"> -  <span style="mso-fareast-font-family: '맑은 고딕'; mso-fareast-language: KO;"> Images a big outline rather than specific (cannot image upto cell level – much better at imaging organs and bones at large) <span style="mso-ascii-font-family: Calibri; mso-bidi-font-family: Calibri; mso-fareast-font-family: Calibri; mso-fareast-language: KO; mso-hansi-font-family: Calibri; msoasciifontfamily: Calibri; msobidifontfamily: Calibri; msofareastfontfamily: Calibri; msofareastlanguage: KO; msohansifontfamily: Calibri; msolist: Ignore;"> -  <span style="mso-fareast-font-family: '맑은 고딕'; mso-fareast-language: KO;"> MRI scans best with patient perfectly still (holding breath) <span style="mso-ascii-font-family: Calibri; mso-bidi-font-family: Calibri; mso-fareast-font-family: Calibri; mso-fareast-language: KO; mso-hansi-font-family: Calibri; msoasciifontfamily: Calibri; msobidifontfamily: Calibri; msofareastfontfamily: Calibri; msofareastlanguage: KO; msohansifontfamily: Calibri; msolist: Ignore;"> -  <span style="mso-fareast-font-family: '맑은 고딕'; mso-fareast-language: KO;"> MRI cannot distinguish between cancer cells and edema (large abundance of water in a cell – completely normal cell) <span style="mso-ascii-font-family: Calibri; mso-bidi-font-family: Calibri; mso-fareast-font-family: Calibri; mso-fareast-language: KO; mso-hansi-font-family: Calibri; msoasciifontfamily: Calibri; msobidifontfamily: Calibri; msofareastfontfamily: Calibri; msofareastlanguage: KO; msohansifontfamily: Calibri; msolist: Ignore;"> -  <span style="mso-fareast-font-family: '맑은 고딕'; mso-fareast-language: KO;"> Costs a lot

<span style="font-family: 'Arial','sans-serif'; font-size: 12pt; line-height: 115%;">Grenacher, L., M. Klauss, et al. (2004). "[Diagnosis and staging of pancreatic carcinoma: MRI versus multislice-CT -- a prospective study]." __Röfo: Fortschritte Auf Dem Gebiete Der Röntgenstrahlen Und Der Nuklearmedizin__ **176**(11): 1624-1 <span style="mso-fareast-font-family: '맑은 고딕'; mso-fareast-language: KO;"> Sensitivity: 89% Specificity: 77%

Image of MRI: []

Hospitals: $1750 - $2200 Outpatient Imaging Centers: $700 - $1000 []

Santo, E. (2004). "Pancreatic Cancer Imaging: Which Method?" Journal of Pancreas 5(4): 253-257. PPV: 77% Accuracy: 96%