Intracerebral metastases MRI

Revision as of 17:25, 13 November 2015 by Sujit Routray (talk | contribs) (→‎MRI)
Jump to navigation Jump to search

Intracerebral metastases Microchapters

Home

Patient Information

Overview

Historical Perspective

Classification

Pathophysiology

Causes

Differentiating Intracerebral Metastases from other Diseases

Epidemiology and Demographics

Risk Factors

Screening

Natural History, Complications and Prognosis

Diagnosis

Staging

History and Symptoms

Physical Examination

Laboratory Findings

Chest X Ray

CT

MRI

Ultrasound

Other Imaging Findings

Other Diagnostic Studies

Treatment

Medical Therapy

Surgery

Primary Prevention

Secondary Prevention

Cost-Effectiveness of Therapy

Future or Investigational Therapies

Case Studies

Case #1

Intracerebral metastases MRI On the Web

Most recent articles

Most cited articles

Review articles

CME Programs

Powerpoint slides

Images

American Roentgen Ray Society Images of Intracerebral metastases MRI

All Images
X-rays
Echo & Ultrasound
CT Images
MRI

Ongoing Trials at Clinical Trials.gov

US National Guidelines Clearinghouse

NICE Guidance

FDA on Intracerebral metastases MRI

CDC on Intracerebral metastases MRI

Intracerebral metastases MRI in the news

Blogs on Intracerebral metastases MRI

Directions to Hospitals Treating Intracerebral metastases

Risk calculators and risk factors for Intracerebral metastases MRI

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]Associate Editor(s)-in-Chief: Sujit Routray, M.D. [2]

Overview

MRI

  • On MRI, brain metastases are typically found in the watershed areas of the brain (areas where blood vessels narrow and act as a trap for clumps of tumor cells).[1]
MRI component Findings

T1

  • Typically iso- to hypointense
  • If hemorrhagic, may have intrinsic high signal
  • Non-hemorrhagic melanoma metastases can also have intrinsic high signal due to the paramagnetic properties of melanin

T1 with contrast

  • Enhancement pattern can be uniform, punctate, or ring-enhancing, but it is usually intense
  • Delayed sequences may show additional lesions, therefore contrast-enhanced MRI is the current standard for small metastases detection

T2

  • Typically hyperintense
  • Hemorrhage may alter this (hypointense)

FLAIR

  • Typically hyperintense with hyperintense peri-tumoral edema

Diffusion weighted imaging (DWI)

  • Edema is out of proportion with tumor size and appears dark on trace-weighted DWI

Gallery

References

  1. Khuntia, Deepak (2015). "Contemporary Review of the Management of Brain Metastasis with Radiation". Advances in Neuroscience. 2015: 1–13. doi:10.1155/2015/372856. ISSN 2356-6787.
  2. MRI image of brain metastasis. Wikipedia 2015. https://en.wikipedia.org/wiki/Brain_metastasis. Accessed on November 9, 2015
  3. Image courtesy of Dr. Frank Gaillard. Radiopaedia (original file here). Creative Commons BY-SA-NC


Template:WikiDoc Sources