scholarly journals The Rule of Magnetic Resonance Angiography (MRA) in the Case of Angiofibroma in the Elbow Joint Region

2019 ◽  
Author(s):  
Arif Jauhari ◽  
Fathona Oktalita Perdani
Keyword(s):  
Magnetic Resonance ◽  
Magnetic Resonance Angiography ◽  
The Body ◽  
Vascular Imaging ◽  
Case Method ◽  
Joint Region ◽  
Know How ◽  
Non Invasive ◽  
Examination Procedure ◽  
Body Coil

Background: Using the MRI modality of 1.5 Tesla can alter vascular imaging (angiography) from invasive examination into a non-invasive examination. The Magnetic Resonance Angiography (MRA) can be performed on upper limb organs with and without contrast. One indication of the MRA examination is angiofibroma. Because of the pathology, clinicians want to see the flow of blood from the upper arm to the elbow so that body coil is used as an alternative to genu coil or ankle coil commonly used in this examination. Objective: The research intends to know how the technique of MRA elbow management using body coil in the angiofibroma case. Method: This research was conducted by observation. The researchers looked directly at the MRA elbow examination procedure using the body coil. Result: The result is the MRA elbow image using body coil from different sequences. 

Clinical Diagnosis and Treatment Value of CT Three-Dimensional Imaging of Gynecological Pelvic Blood Vessels

2021 ◽  
Vol 11 (6) ◽  
pp. 1743-1752
Author(s):  
Li Qiao ◽  
Changxiao Li ◽  
Qinde Yu ◽  
Li Ma
Keyword(s):  
Magnetic Resonance ◽  
Magnetic Resonance Angiography ◽  
Clinical Diagnosis ◽  
Young Women ◽  
Three Dimensional ◽  
Iliac Vein ◽  
Vascular Imaging ◽  
Diagnosis And Treatment ◽  
3D Ct ◽  
External Iliac Vein

For diseases of the abdominal and pelvic system, especially those of the blood duct system, the main examination methods of the transmission system are color Doppler ultrasound, enhanced CT angiography and digital subtraction angiography (DSA). Among them, DSA is the gold standard of angiography, but it is an invasive examination, which is complicated, time-consuming and laborious, and the skill of intubation is very high. Enhanced 3D-CT blood tube imaging has been gradually used in clinic because of its advantages such as fast imaging speed and wide imaging range. It has good vascular imaging conditions and satisfactory vascular imaging results in all parts of the human body, but this examination is radioactive and is not beneficial to young women of childbearing age, children and frail patients. The purpose of this paper is to further illustrate the value of magnetic resonance angiography (CTA) in displaying pelvic vessels by comparing the three-dimensional model of magnetic resonance angiography (CTA) and magnetic resonance angiography (MRA) in healthy young women. The results showed that for the venous system, CTA usually showed only the internal and external iliac vein, but not for the uterine vein and other branches of the internal and external iliac vein, and almost no imaging for the anterior sacral vein. CE-MRA can not only display 1-4 grade arteries to the same extent, but also show more branches of superior and inferior gluteal arteries, and show more abundant veins, especially presacral veins. For cases such as gynecological pelvic floor surgery, it is necessary to know the vascular network of presacral region before operation. In a word, for clinical diagnosis and treatment value, the 3D-CT imaging is the first choice.

scholarly journals Vascular imaging of the spine in the US Medicare population: Catheter and MR angiography volumes from 2004 to 2016

2020 ◽  
Vol 33 (4) ◽  
pp. 318-323
Author(s):  
Kofi-Buaku Atsina ◽  
Mougnyan Cox ◽  
Neda I Sedora Roman ◽  
Bryan Pukenas ◽  
Laurence Parker ◽  
...  
Keyword(s):  
Magnetic Resonance ◽  
Magnetic Resonance Angiography ◽  
Mr Angiography ◽  
Vascular Imaging ◽  
Fee For Service ◽  
Current Procedural Terminology ◽  
Catheter Angiography ◽  
Physician Specialty ◽  
The Us ◽  
Spinal Catheter

Aims The purpose of our study was to analyze utilization trends and physician specialty distribution in spinal catheter angiography and magnetic resonance angiography in the Medicare fee-for-service population. Methods Data from the CMS Physician/Supplier Procedure Summary Master Files for 2004 to 2016 were used for this study. The Current Procedural Terminology version 4 codes for spinal magnetic resonance angiography (72159) and spinal catheter angiography (75705) were used to analyze the volumes of these procedures. Using Medicare’s 108 specialty code, we compared procedure volumes among physician specialties. Data analysis was performed using SAS version 9.3 for Windows. Results The volume of spinal catheter angiography performed was 4758 in 2004, peaked at 6869 in 2012, and dropped to 6656 in 2016. Overall, the volume of spinal catheter angiography increased by 40% from 2004 to 2016. Radiologists performed the majority of these procedures (3736 or 56.1%) in 2016, followed by neurosurgeons (2456 or 36.9%), and neurologists (346 or 5.2%). The spinal magnetic resonance angiography volume fluctuated between 0 and 1 from 2004 to 2009, then precipitously increased to 40 in 2010, peaked at 133 in 2011, and declined to 81 in 2016. The volume of spinal magnetic resonance angiography procedures increased by 8000% from 2004 to 2016, with radiologists performing the majority of them. Conclusion Our results show that spinal catheter angiography volumes continue to rise in the Medicare fee-for-service population, and are largely performed by radiologists, neurosurgeons, and neurologists. Although spinal magnetic resonance angiography volumes have started to increase, they comprise only a small fraction of studies performed for vascular evaluation of the spine.

What's new in magnetic resonance angiography imaging of the body?

2004 ◽  
Vol 22 (9) ◽  
pp. 201-203
Author(s):  
Elizabeth Loney ◽  
Wady Gedroyc
Keyword(s):  
Magnetic Resonance ◽  
Magnetic Resonance Angiography ◽  
The Body

Non-Invasive Assessment of Renal Artery Stenosis: Current Concepts and Future Directions in Magnetic Resonance Angiography

1999 ◽  
Vol 23 ◽  
pp. S111-S117 ◽  
Author(s):  
Michael V. Knopp ◽  
Frank Floemer ◽  
Stephan O. Schoenberg ◽  
Hendrik von Tengg-Kobligk ◽  
Michael Bock ◽  
...  
Keyword(s):  
Magnetic Resonance ◽  
Magnetic Resonance Angiography ◽  
Renal Artery ◽  
Renal Artery Stenosis ◽  
Artery Stenosis ◽  
Future Directions ◽  
Non Invasive

Abstract TMP40: Revascularization in Patients with Moyamoya Decreases Abnormally High Posterior Circulation Arterial Flows Measured by Quantitative Magnetic Resonance Angiography

Stroke ◽  
2013 ◽  
Vol 44 (suppl_1) ◽  
Author(s):  
Ramon Navarro ◽  
Robert Lober ◽  
Abdullah Feroze ◽  
Nadia Khan ◽  
Gary K Steinberg
Keyword(s):  
Magnetic Resonance ◽  
Magnetic Resonance Angiography ◽  
Moyamoya Disease ◽  
Basilar Artery ◽  
Posterior Cerebral Artery ◽  
Posterior Circulation ◽  
Arterial Circulation ◽  
Non Invasive ◽  
Post Surgery ◽  
Before And After

Introduction: Moyamoya disease and syndrome are well known to affect the anterior cerebral circulation by progressive steno-occlusive disease of the supraclinoid internal carotid arteries. Less attention has been paid to changes in posterior arterial circulation hemodynamics in this condition. We sought to better understand the latter by using a relatively novel non-invasive imaging technique: quantitative magnetic resonance angiography (qMRA). Hypothesis: We assessed the utility of qMRA to detect changes in arterial posterior arterial circulation flows before and after surgical revascularization. Methods: Retrospective review of patients who met the following inclusion criteria: (1) diagnosis of moyamoya disease or syndrome with revascularization surgery at the Stanford University between September 2008 and March 2012; (2) preoperative and postoperative qMRA scans on record within a two-year time frame; and (3) high-quality qMRA images without motion artifact. Cerebral blood-vessel flow was quantified after non-contrast magnetic resonance imaging through the use of a commercially available software tool: non-invasive optimal vessel analysis (NOVA, VasSol, Chicago, USA). Results: A total of 191 patients underwent 281 surgeries in this period of time. Of these, a cohort of 64 patients (78% female, mean age 38.5 years, 55% unilateral disease) had preoperative and postoperative qMRA studies. Preoperative arterial flows in the posterior circulation were markedly elevated compared to normative data. These flows significantly decreased after revascularization (94% direct STA-MCA bypass): right posterior cerebral artery 145 ml/min pre-surgery, 123 ml/min post-surgery, p=0.005; basilar artery 264 ml/min pre-surgery, 222ml/min post-surgery, p=0.0038. Conclusion: Quantitative MRA shows that posterior circulation arterial flows are markedly increased in patients with moyamoya. After revascularization, there is an overall decrease in these flows that is significant in the basilar artery and right posterior cerebral artery. Further use of qMRA might be warranted to better understand moyamoya hemodynamics before and after surgery.

scholarly journals Pathophysiology and Diagnosis of Vertebrobasilar Insufficiency: A Review of the Literature

2016 ◽  
Vol 21 (03) ◽  
pp. 302-307 ◽  
Author(s):  
Arlindo Lima Neto ◽  
Roseli Bittar ◽  
Gabriel Gattas ◽  
Edson Bor-Seng-Shu ◽  
Marcelo Oliveira ◽  
...  
Keyword(s):  
Magnetic Resonance ◽  
Magnetic Resonance Angiography ◽  
Clinical Symptoms ◽  
Diagnostic Testing ◽  
Transcranial Doppler Ultrasound ◽  
Good Method ◽  
The Body ◽  
Vertebrobasilar Insufficiency ◽  
Great Vessels ◽  
Pros And Cons

Introduction Vertebrobasilar insufficiency is defined as transitory ischemia of the vertebrobasilar circulation. Dizziness, vertigo, headaches, vomit, diplopia, blindness, ataxia, imbalance, and weakness in both sides of the body are the most common symptoms. Objective To review the literature regarding the three available diagnostic testing in patients with dizziness complaints secondary to vertebrobasilar insufficiency (VBI): magnetic resonance angiography; transcranial Doppler ultrasound; and vertebrobasilar deprivation testing. Data Synthesis We selected 28 studies that complied with our selection criteria for appraisal. The most frequent cause of the hemodynamic changes leading to VBI is atherosclerosis. The main clinical symptoms are dizziness, vertigo, headaches, vomit, diplopia, blindness, ataxia, imbalance, and weakness in both sides of the body. Even though arteriography is considered the most important exam to diagnose the disease, the inherent risks of this exam should be taken into consideration. The magnetic resonance angiography has been widely studied and is a good method to identify and localize any occlusions and stenosis in both neck and intracranial great vessels. Conclusion Each patient with a suspected diagnosis of VBI should be individually evaluated and treated, taking in consideration the pros and cons of each diagnostic testing and treatment option.

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