Spectris Solaris EP MR Injection System
MR Image Gallery
Peripheral vascular (PV) images achieved utilizing Spectris Solaris for contrast delivery and injector protocols are presented in the case studies below.
These case studies demonstrate the simplicity, sophistication, and versatility of Spectris Solaris for imaging the peripheral vasculature: Simple - St. Luke's Episcopal of Houston, TX, USA provides a case study of PV imaging using a two-phase contrast protocol followed by a saline flush, Sophisticated - Carolinas Medical Center-Mercy of Charlotte, NC, USA offers a PV case study using a sophisticated six-phase protocol.
Contrast-Enhanced PV MRI with 2-Contrast Phase Protocol St. Luke's Episcopal Hospital of Houston, TX, USA, home of the Texas Heart Institute®, provides the following PV case study conducted by CVMRI Physician Dr. Scott Flamm and CVMRI Technologist Mercedes Pereyra, RT.
| Clinical History: | 57 year old male with known peripheral vascular disease and previous surgery for placement of bilateral grafts of the superficial arteries. The patient presents with left-sided claudication and clinical concern for graft stenosis. | ||
| Scanner: | Philips NT-Intera 1.5T with software Release 9 | ||
| Injection System: | MEDRAD Spectris Solaris® MR Injection System | ||
| Injection Parameters: | Contrast volume – 40cc Injection rate – 10cc at 1.4cc/second, followed by 28cc at 0.8cc/second Timing sequence – 2cc timing run |
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| Images: (click to enlarge images) |
 
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| Radiologist Interpretation: | There is no stenosis of the abdominal aorta or pelvic arteries. There are grafts replacing the proximal to distal superficial femoral arteries bilaterally (between arrowheads fig. 2). The grafts are widely patent and there is no evidence of anastamotic stenosis. However, there is severe, diffuse disease of the left anterior tibial artery (arrow fig. 2) and complete occlusion of the left dorsalis pedis artery (double arrows fig. 2) explaining the patient’s left leg pain. |
About St. Luke's Episcopal Hospital in Houston, TX, USA
St. Luke's Episcopal Hospital, home of the Texas Heart® Institute, has been providing compassionate health care from its location in the heart of the Texas Medical Center in Houston, Texas for almost five decades. The Texas Heart® Institute has been ranked among the nation's top ten heart centers for 14 consecutive years. Founded in 1954 by the Episcopal Diocese of Texas, today St. Luke's delivers primary and tertiary health care to patients from the Houston metropolitan area and around the world.
Contrast-Enhanced
PV MRI with 6-Phase Protocol
Carolinas Medical Center-Mercy of Charlotte, NC, USA, provides the
following PV case study with images achieved utilizing a six-phase Spectris
Solaris injection protocol. This case study was provided Dr. Vittoric
Antonacci and Mark Argabright, RTR, MR, CT.
| Scanner: | GE 1.5T 11.0 software |
| Injection System: | MEDRAD Spectris Solaris® MR Injection System |
| Injection Protocol: | Phase1: Phase 2: Phase 3: Phase 4: Phase 5: Phase 6: |
| Protocol Explanation: | Carolinas Medical Center-Mercy uses all 6 programmable phases of Spectris Solaris to completely image the PVs without any re-arming or re-starting of the injector. Imaging begins with the lower legs (feet and ankles) using an injector protocol of contrast followed by a saline flush phase. The third phase is a HOLD to allow for table movement to the upper two stations (pelvis, thighs). When the table is in position, the fourth phase is continued with a bolus of contrast, followed by the fifth phase, a slower flow rate contrast “drip” to extend the flow of contrast as long as possible during leg vessel imaging. Finally, a sixth phase saline flush is injected to end the procedure. |
| Image: (click to enlarge images) |
Phase 1 image Phase 2 image HOLD - Table moved into position Phase 4- 6 images
Complete runoff |
Founded in 1906, Carolinas Medical Center-Mercy in Charlotte offers general medical and surgical diagnosis and treatment, as well as 24-hour emergency care.
Located on the CMC-Mercy campus are:
Charlotte Heart Center at CMC-Mercy, encompassing treatment of cardiac emergencies, cardiac catheterization and angioplasty, cardiac surgery, critical care nursing and educational support.
All of these services require the latest in radiological technologies and our MRI service is no exception. CMC-Mercy MRI offers a 1.5 Tesla magnet with Excite image processing. This enables our angiography studies to be performed in a method that offers top quality at reduced scan time.
More Images achieved with Spectris Solaris at other sites:
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Injection Protocol Used
Scan Delay - 22 seconds |
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