scholarly journals A case of avascular necrosis of capitate bone in an air compressor jack hammer worker

2019 ◽  
Vol 7 (2) ◽  
pp. 65-68
Author(s):  
Ali Tabrizi ◽  
Ali Aidenlou
Keyword(s):  
Magnetic Resonance Imaging ◽  
Avascular Necrosis ◽  
Blood Supply ◽  
Resonance Imaging ◽  
Air Compressor ◽  
Direct Trauma ◽  
Intensity Lesion ◽  
Magnetic Resonance Imaging Mri ◽  
Capitate Bone ◽  
Chronic Wrist Pain

Introduction: Avascular necrosis (AVN) is very rare in capitate bone. It mostly occurs due to direct trauma to wrist. However, it could also occur as the result of disturbed blood supply due to repetitive micro-trauma in rare cases. Case Report: In this report, a 30-year-old man who was an air compressor jack hammer worker with chronic wrist pain was presented. Imaging revealed a low-signal intensity lesion on T1-weighted which supported AVN of capitate. Blood supply damage was due to continuous stress to palmar hand as the consequence of working with air compressor jack hammer which led to AVN of capitate. Conclusion: AVN of capitate could occur as the result of repetitive micro-trauma. It has a high correlation with the job of patients. Radiography does not help in the first stages. Magnetic resonance imaging (MRI) has high diagnostic sensitivity. In the primary stages in patients with occupation-induced AVN, it could be improved by changing the job and temporary immobilization.

scholarly journals Avascular Necrosis of the Femoral Head: A Case Report with Emphasis on Imaging Findings

2013 ◽  
Vol 2 (2) ◽  
pp. 92-95
Author(s):  
S Ansari ◽  
K Dhungel ◽  
K Ahmad ◽  
MK Gupta ◽  
MF Amanullah ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Case Report ◽  
Femoral Head ◽  
Avascular Necrosis ◽  
Hip Replacement ◽  
Joint Destruction ◽  
Accurate Method ◽  
Imaging Findings ◽  
Resonance Imaging ◽  
Magnetic Resonance Imaging Mri

Avascular necrosis (AVN) of the femoral head is a disease caused by reduced blood supply to the subchondral bone leading to destruction of the hip joint. Most common sites are femoral and humeral head. Initially, patients are asymptomatic, but, in time, AVN leads to joint destruction, requiring surgical treatment and, in later stages, total hip replacement. Magnetic resonance imaging (MRI) has been proved to be a highly accurate method both for early diagnosis and for staging of the disease. We present a case of avascular necrosis of right femoral head in 28 year old male following trauma to hip. Nepalese Journal of Radiology; Vol. 2; Issue 2; July-Dec. 2012; 92-95 DOI: http://dx.doi.org/10.3126/njr.v2i2.7694

scholarly journals Avascular Necrosis of Left Femoral Head Following Trivial Trauma and the Need for Early Magnetic Resonance Imaging

2021 ◽  
pp. 427-431
Author(s):  
. Pugazhendhi ◽  
K. Arvind Natarajan ◽  
H. Pankaj
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Femoral Head ◽  
Avascular Necrosis ◽  
Mri Imaging ◽  
Resonance Imaging ◽  
Aseptic Necrosis ◽  
History Of ◽  
Magnetic Resonance Imaging Mri ◽  
Bony Abnormality

Trivial Trauma is one of the causes of avascular necrosis of the femoral head. Even trivial trauma can cause loss of blood supply to the femoral head and results in ischemia and aseptic necrosis. A 68 year old male patient came with 2 month history of left hip pain. X-ray pelvis (fig-1) with both hips which was taken immediately after the trauma, showed no significant bony abnormality and patient was managed conservatively with analgesics. Patient had persisting pain for 2 months which increased in severity and patient developed difficulty walking. Therefore a Magnetic Resonance Imaging (MRI) L hip (fig-2) was done and which showed avascular necrosis grade III of left femoral head. Total hip replacement was then carried out for the patient and patient improved symptomatically. Earlier MRI imaging following trauma could have resulted in early diagnosis and intervention to prevent progression of the disease and salvage the femoral head.

Top-Ten Tips for Imaging the Brachial Plexus with Ultrasound and MRI

2019 ◽  
Vol 23 (04) ◽  
pp. 405-418 ◽  
Author(s):  
James F. Griffith ◽  
Radhesh Krishna Lalam
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Brachial Plexus ◽  
Muscle Denervation ◽  
Resonance Imaging ◽  
Neural Injury ◽  
Clinical Indications ◽  
Magnetic Resonance Imaging Mri ◽  
High Level ◽  
Extensive Involvement

AbstractWhen it comes to examining the brachial plexus, ultrasound (US) and magnetic resonance imaging (MRI) are complementary investigations. US is well placed for screening most extraforaminal pathologies, whereas MRI is more sensitive and accurate for specific clinical indications. For example, MRI is probably the preferred technique for assessment of trauma because it enables a thorough evaluation of both the intraspinal and extraspinal elements, although US can depict extraforaminal neural injury with a high level of accuracy. Conversely, US is probably the preferred technique for examination of neurologic amyotrophy because a more extensive involvement beyond the brachial plexus is the norm, although MRI is more sensitive than US for evaluating muscle denervation associated with this entity. With this synergy in mind, this review highlights the tips for examining the brachial plexus with US and MRI.

Use of Magnetic Resonance Imaging (MRI) to Determine the 3D Geometry in the Human Rectum

Endoscopy ◽  
2004 ◽  
Vol 36 (10) ◽  
Author(s):  
BP McMahon ◽  
JB Frøkjær ◽  
A Bergmann ◽  
DH Liao ◽  
E Steffensen ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Resonance Imaging ◽  
3D Geometry ◽  
Human Rectum ◽  
Magnetic Resonance Imaging Mri

Magnetic resonance imaging in study of lungs

2019 ◽  
pp. 10-23
Author(s):  
T. A. Akhadov ◽  
S. Yu. Guryakov ◽  
M. V. Ublinsky
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Medical Society ◽  
Resonance Imaging ◽  
Iodinated Contrast ◽  
Long Time ◽  
Women And Children ◽  
Magnetic Resonance Imaging Mri ◽  
A Current ◽  
Lung Mri

For a long time, there was a need to apply magnetic resonance imaging (MRI) technique for lung visualization in clinical practice. The development of this method is stimulated by necessity of the emergence of an alternative to computed tomography, especially when radiation and injection of iodine-containing contrast agents are contraindicated or undesirable, for example, in pregnant women and children, people with intolerance to iodinated contrast. One of the reasons why lung MRI is still rarely used is lack of elaborated standardized protocols that would be adapted to clinical needs of medical society. This publication is a current literature review on the use of MRI in lung studies.

26. Nothing but the truth, so help me God: The history of magnetic resonance imaging

2007 ◽  
Vol 30 (4) ◽  
pp. 41
Author(s):  
A. Dechant
Keyword(s):  
Magnetic Resonance Imaging ◽  
New York ◽  
Nuclear Magnetic Resonance ◽  
Magnetic Resonance ◽  
Nobel Prize ◽  
Resonance Imaging ◽  
Solid State Physics ◽  
Magnetic Resonance Imaging Mri ◽  
The Times ◽  
Nuclear Magnetic

On the morning of October 10, 2003, the residents of New York awoke to find that an entire page of their beloved paper, The Times, had been usurped for the sole purpose of flagrant self-promotion and protestation. On his own behalf, Dr. Raymand Damadian had purchased a one page spread bemoaning his exclusion in the Nobel Prize for Medicine that year which had previously been awarded to Paul Laterbur and Peter Mansfield for their contributions to the development of Magnetic Resonance Imaging (MRI). Over the course of the next few months, the public was to witness a series of such articles proclaiming that a shameful wrong had been committed, and that the truth would eventually prove Dr. Damadian’s accusations. That truth lay in the early theoretical and technical foundations that led to the discovery of MRI. Described just after the Second World War, nuclear magnetic resonance (NMR) was hailed as a breakthrough in physical chemistry for which Felix Bloch and Edward Purcell were awarded the Nobel Prize in Physics in 1952. Two decades later, in 1971, Dr. Damadian discovered that differences between the NMR signals of cancerous and normal tissue might provide a rapid means of cancer detection. However, Laterbur and Mansfield were the first to actually demonstrate images of live tissue using the application of magnetic gradients – the key to modern MRI. Though speculation exists that Dr. Damadian may have been excluded from the prize due to his religious beliefs or political rivalry, only time will reveal the whole truth when the Nobel files are opened 50 years hence. Bradley W. The Nobel Prize: Three Investigators Allowed but Two Were Chosen. Journal of Magnetic Resonance Imaging 2004; 19:520. Laterbur P. Image formation by induced local interactions: examples of employing nuclear magnetic resonance. Nature 1973; 242:190-191. Mansfield P, Grannell P. “NMR diffraction in solids?” Journal of Physics C: Solid State Physics 1973; 63:L433-L426.

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