Free aplication android about CT Positioning

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Feature : responsive
About ct positioning ct brain, vertebrae, extremity, CTA, Cardiac ct
as show image below
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RADIOLOGY PRICE LIST. NAME OF TEST. PRICE. MRI, TMJ(s) W/O or W/DYE. MRI. $440.00. CT, Head or Brain s/Contrast. CT. $192.50. CT, Head or Brain.

Aortic arch in MRA and its Variations

The aortic arch is the direct continuation of the ascending aorta. Its origin is defined as sternomanubrial joint. It terminates at the lower border of T4, when it becomes the descending aorta.

Branches :
Three main branches typically originate from the upward convexity of the arch. In order from proximal to distal these are:

1- (right) brachiocephalic artery (or innominate artery) which goes on to divided into the right subclavian and right common carotid arteries.
2- left common carotid artery
3- left subclavian artery

There are three common variations to the branching pattern:

1. normal (as described above) that seen in ~ 70% of patients.
2. bovine arch : common origin of brachiocephalic and left common carotid artery - seen in approximately 15% of patients (more common in blacks)
3. left common carotid has its origin from the brachiocephalic artery proper, rather than from a common trunk : seen in approximately 10% of patients (also more common in blacks)
 Left ICA coming off the right brachiocephalic.
Additionally there may be additional branches that arise directly from the arch. These include

* thyroidea ima artery, usually between the brachiocephalic and left common carotid
* left vertebral artery, usually between the left common carotid and the left subclavian arteries.
* rarely the right subclavian and right common carotid arise independently.

Psoriatic arthritis in the sacroiliac joint

Psoriatic arthritis in the sacroiliac joint usually appears with bilateral, asymmetric distribution , though bilateral, symmetric abnormalities are frequent and even unilateral involvement may occur.
The radiographic changes include erosions and sclerosis, predominantly affecting the ilium, and widening of the articular space. Although joint space narrowing and bony ankylosis can occur, this is much less frequent than in classic ankylosing spondylitis. A prominent finding may be blurring and eburnation of apposing sacral and iliac surfaces above the true joint in the region of the interosseous ligament.

Psoriatic arthritis. Bilateral, though somewhat asymmetric, narrowing of the sacroiliac joints.

Psoriatic arthritis in the sacroiliac joint

New Radiology Articles

This below, update from , Radiology Articles very nice from medscape :