MRI CASE

Done By :Haya Al-Thuwaini Ro’aa Al-Nemer

Kholoud Al-Washmi

Prepared For:Dr.Halima,,

Out lines:

The procedure:

Pt historyClinical indication.About the disease.Scanner &sequences.Finding & images.

• Procedure: MRI sella turcica .

• DOE: 9-AUG-2010

• History:33 years old female with headache associated with

blurred vision.

• Clinical indication:R/O pituitary adenoma.

Pituitary AdenomaPituitary adenomas are a noncancerous growth in the

pituitary gland. * account for about 15% of intracranial neoplasm's.

TYPES of Pituitary Adenomas:They are classified based on size:1. Pituitary microadenomas are smaller than 10 millimeters

(more common).2. Pituitary macroadenomas are 10 millimeters or larger.

SYMPTOMS of Pituitary Adenomas:

1. Symptoms vary, depending on the size and location of the adenoma.

2. Tiredness, headaches, vision problems, vomiting, or dizziness.

DIAGNOSES:3. pituitary function testing (blood hormone levels) .4. pituitary imaging: computed tomography (CT), MRI scan

is preferred.

TREATMENT for a pituitary adenoma can include:

Depend on the type of tumor & its size:

Surgery

Radiation therapy.

Drug therapy.

Scanner: GE (1.5 T)

Sequence:

FSE is: a spin echo pulse sequence, but echo train

length consists of several 180° rephasing pulses.

At each rephasing, an echo is produced and a different phase encoding step is performed.

• Fast Spin Echo advantages:1. Short scan time.

• Fast Spin Echo disadvantages:1. higher SAR.2. image blurring.

TECHNIQE:Multiplaner, multisequential MRI as per pituitary protocol including the following

sequence:

SAGITTAL T1 :

TR = 650 , TE = minimum , echo train = 3 , BW = 15.6 , F = 320 , Q = 192 , NEX = 4

SAGITTAL T1 FSE : The same as above.

CORONAL & AXIAL DIFFUSION :

TR = 10000 , TE = min. , F = 128 , Q = 128 , NEX = 2 , P.value =1000

CORONAL T2:

TR = 2075 , TE = 120 , echo train = 17 , BW = 12 , F = 320 , Q = 224 , NEX = 4

CORONAL T1 :

TR = 450 , TE = min. , echo train = 2 , BW = 15 , F = 256 , Q = 224 , NEX = 4

CORONAL T1 FSE : The same as above.

Contrast media:4 ml half dose.All sequences are taken pre + post CM except T2 sequence, it is only post CM.

RF used coil:Head coil (volume coil).

•

Findings:The pituitary gland has normal size & signal intensity.Homogeneous enhancement with no focal pituitary lesion or abnormal enhancement.

Impression:Unremarkable MRI pituitary gland examination.

THANK YOU,,