0 FLAIR

Fluid attenuated inversion recovery (FLAIR) is a pulse sequence used in magnetic resonance imaging which was invented by Dr. Graeme Bydder. FLAIR can be used with both three dimensional imaging (3D FLAIR) or two dimensional imaging (2D FLAIR).

The pulse sequence is an inversion recovery technique that nulls fluids. For example, it can be used in brain imaging to suppress cerebrospinal fluid (CSF) effects on the image, so as to bring out the periventricular hyperintense lesions, such as multiple sclerosis (MS) plaques.

By carefully choosing the inversion time (TI), the signal from any particular tissue can be nulled. The appropriate TI depends on the tissue via the formula:

in other words, one should typically use a TI of around 70% of the T₁ value. In the case of CSF suppression, one aims for T₂ weighted images.

Source : http://en.wikipedia.org/wiki/Fluid_attenuated_inversion_recovery

0 Epiphyseal injuries

Source of image : http://www.primary-surgery.org/ps/vol2/html/sect0324.html

Examples
Type I - Slip capital femoral epiphysis
        II - Lower end of Radius
       III - Medial Malleolus
       IV - Lateral Condyle Of Humerous
        V - Lower tibial epiphysis.

• Type II is Most common

• Type II - The triangular fragment = Thurston Holland Sign

• Type IV is 2nd MC and also known as Fracture of Necessity.

• Type V - difficult to diagnose on X-Ray , Has Compulsory Growth Arrest.

0 Poison MCQ

A patient presents to the emergency department with bluish discolouration of conjunctiva , mucous membranes and nails one hour after ingestion of a poison. Examination reveals tachycardia and hypotension. Which of the following is most likely ingested poison:

a. Mercury
b. Arsenic
c. Lead
d. Silver

ANSWER:

D. Silver... ref: CLICK HERE

0 Autism Awareness Day

The fifth annual World Autism Awareness Day is April 2, 2012. Every year, autism organizations around the world celebrate the day with unique fundraising and
awareness-raising events.

http://www.autismspeaks.org/what-autism/waad



Autism is a brain disorder that limits a person's ability to communicate and relate to other people. It first appears in young children, who fall along a spectrum from mild to severe. Some people can navigate their world, some have exceptional abilities, while others struggle to speak. Autism spectrum disorders (ASDs) affect about one child in 110, striking four times as many boys as girls.


http://www.webmd.com/brain/autism/ss/slideshow-autism-overview