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University of Wisconsin
Madison, Wisconsin
A 49 year old woman with a normal mammogram a few months prior to feeling a lump. MRI shows 15 mm rapidly enhancing classic spiculated malignancy in the anterior breast. The lesion was virtually invisible on mammography although this patient had average density breasts.
(Click images for a full size view)
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| Pre-Contrast Image | Post-Contrast Image | Subtraction Image |
Comprehensive Medical Imaging
Victorville, CA USA
"Using the Signa Profile, we are able to scan larger patients in a comfortable setting and still provide excellent diagnostic images." - Oscar Blabagno, Jr. RT(R)(MR)
44 year old male with a history of left elbow/bicep pain.
The patient was injured at work pulling heavy equipment. Due to the patient's large body size (280lbs.), the patient was referred to our center for Open MRI. Utilizing the 9" General Purpose circular coil for adequate coverage of the elbow and biceps tendon, the area of interest was placed directly isocenter. The tendon and medial head of the biceps are seen to be retracted superiorly and curled indicating complete tear of the biceps tendon. Edema is also seen in the course of the tendon extending to the level of the proximal ulna. There is deformity and increased signal in the extensor tendon complex. Its insertion into the radial head is suggestive of strain or partial tear. Small effusion as well as mild degenerative joint disease is also noted.
(Click images for a full size view)
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| Figure 1: T2 FRSE Coronal Oblique |
Figure 2: T2 FRSE Coronal Oblique |
Associate Professor of Radiology
Brigham and Women's Hospital
Boston, Massachusetts USA
Interventional MRI has become a practical reality and is in current use at several centers across the country. We have had this capability for several years now. The primary use of this technology was in Neurosurgery to guide and help plan neurosurgical procedures. However there have been exciting developments in prostate cancer diagnosis and treatment. We use MR guidance to obtain prostate biopsies and do brachytherapy. Both procedures are performed in the open magnet using a percutaneous approach to the placement of the biopsy guns, needles and/or seeds.
Significant advances have been made in MR imaging of the prostate gland in the past decade. It is now clearly established that a combination of T1W or proton density (PD) and T2W images in multiple planes provides the most comprehensive set of images of the entire prostate and its substructure, including the central gland and the peripheral zone.
Focal lesions in the peripheral zone are suspicious for tumor, especially when located posteriorly in the gland. MRI can provide full visualization of the rectum, bladder, seminal vesicles, and neurovascular bundles (NVBs) (Fig. 1 & Fig. 2). The MRI technology has improved significantly, with current state-of-the-art images acquired with an endorectal coil/phased array coil.
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| Figure 1: Pre-Op 1.5T Axial |
Figure 2: Pre-op Axial 1.5T of PZ |
Co-Directors of the Mount Sinai Cardiovascular MR Program
Mount Sinai Medical Center
New York, NY USA
"Volume rendering provides useful 3-D images of the aorta and its great vessels allowing vascular surgeons an unsurpassed view of complex vascular anatomy important for planning the surgical approach."
78 year old male with decreased blood pressure in the left arm.
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Image 1 is a volume rendered reconstruction of a breath hold 3D T1 weighted gradient echo MR angiogram of the aortic arch performed in 20 seconds. There is a right-sided aortic arch and an aberrant origin of the left subclavian artery. |
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Director of MRI, Chief Section Neuro Radiology
South Jersey Radiology Associates
Voorhees, NJ US
"The following two cases demonstrate the ability of carotid MRA to diagnosis tandem lesions, due to it's ability in most cases to evaluate the entire vascular tree, extending from the Aortic Arch to the Circle of Willis. Carotid MRA illustrates a non-invasive accurate evaluation of the carotid bifurcations in an out patient setting utilizing non nephrotoxic contrast." - Alfio K. Pennisi, M.D.
The patient is a 69 year old male presented with symptoms of right upper extremity weakness two days prior to the Carotid MRA exam.
Case Study Image 1Shows that, bilaterally, the carotid bifurcations are normal and widely patent. |
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Case Study Image 2This MRI a volume rendered image showing a markedly atretic left subclavian artery. Reconstitution of the left subclavian and left vertebral artery occurs from large collaterals arising from a thyro-cervical branch off the descending thoracic aorta. |
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Comprehensive Medical Imaging
Victorville, CA USA
"Our Signa Profile Open MR system with high SR gradients and SNR small head coil provides us with excellent image quality when imaging suprasellar lesions." - Oscar Blagagno, Jr. RT(R)(MR)
45 year old male with complaint of headaches and blurred vision. Previous CT scan revealed abnormality in the parasellar region. Referring physician requested further evaluation with MRI. Patient requested Open MRI due to claustrophobia.
(Click images for a full size view)
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| Figure 1: T1 Sagittal pre-contrast |
Figure 2: Axial T2 FSE DE level of the optic chiasm & sella |
The International Society for Magnetic Resonance in Medicine is a nonprofit professional association devoted to furthering the development and application of magnetic resonance techniques in medicine and biology.
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