The use of diagnostic ultrasound to detect structural damage to the soft tissues of the extremities of horses

1983 ◽  
Vol 3 (4) ◽  
pp. 134-135 ◽  
Author(s):  
N.W. Rantanen ◽  
R.L. Genovese ◽  
R. Gaines
Keyword(s):  
Structural Damage ◽  
Soft Tissues ◽  
Diagnostic Ultrasound

scholarly journals Imaging of Joint and Soft Tissue Involvement in Systemic Lupus Erythematosus

2021 ◽  
Vol 23 (9) ◽  
Author(s):  
Andrea Di Matteo ◽  
Gianluca Smerilli ◽  
Edoardo Cipolletta ◽  
Fausto Salaffi ◽  
Rossella De Angelis ◽  
...  
Keyword(s):  
Systemic Lupus Erythematosus ◽  
Soft Tissue ◽  
Lupus Erythematosus ◽  
Structural Damage ◽  
Structural Changes ◽  
Soft Tissues ◽  
Imaging Techniques ◽  
Joint Involvement ◽  
Systemic Lupus ◽  
Muscle Involvement

Abstract Purpose of Review To highlight the potential uses and applications of imaging in the assessment of the most common and relevant musculoskeletal (MSK) manifestations in systemic lupus erythematosus (SLE). Recent Findings Ultrasound (US) and magnetic resonance imaging (MRI) are accurate and sensitive in the assessment of inflammation and structural damage at the joint and soft tissue structures in patients with SLE. The US is particularly helpful for the detection of joint and/or tendon inflammation in patients with arthralgia but without clinical synovitis, and for the early identification of bone erosions. MRI plays a key role in the early diagnosis of osteonecrosis and in the assessment of muscle involvement (i.e., myositis and myopathy). Conventional radiography (CR) remains the traditional gold standard for the evaluation of structural damage in patients with joint involvement, and for the study of bone pathology. The diagnostic value of CR is affected by the poor sensitivity in demonstrating early structural changes at joint and soft tissue level. Computed tomography allows a detailed evaluation of bone damage. However, the inability to distinguish different soft tissues and the need for ionizing radiation limit its use to selected clinical circumstances. Nuclear imaging techniques are valuable resources in patients with suspected bone infection (i.e., osteomyelitis), especially when MRI is contraindicated. Finally, dual energy X-ray absorptiometry represents the imaging mainstay for the assessment and monitoring of bone status in patients with or at-risk of osteoporosis. Summary Imaging provides relevant and valuable information in the assessment of MSK involvement in SLE.

scholarly journals Structural damage models for fibrous biological soft tissues

2007 ◽  
Vol 44 (18-19) ◽  
pp. 5894-5911 ◽  
Author(s):  
V. Alastrué ◽  
J.F. Rodríguez ◽  
B. Calvo ◽  
M. Doblaré
Keyword(s):  
Structural Damage ◽  
Soft Tissues ◽  
Damage Models

scholarly journals Imaging in ankylosing spondylitis

2012 ◽  
Vol 4 (4) ◽  
pp. 301-311 ◽  
Author(s):  
Mikkel Østergaard ◽  
Robert G.W. Lambert
Keyword(s):  
Ankylosing Spondylitis ◽  
Standard Method ◽  
Structural Damage ◽  
Structural Changes ◽  
Soft Tissues ◽  
Decisive Role ◽  
Sacroiliac Joints ◽  
Mri Findings ◽  
Ongoing Research ◽  
Gold Standard Method

Imaging is an integral part of the management of patients with ankylosing spondylitis and axial spondyloarthritis. Characteristic radiographic and/or magnetic resonance imaging (MRI) findings are key in the diagnosis. Radiography and MRI are also useful in monitoring the disease. Radiography is the conventional, albeit quite insensitive, gold standard method for assessment of structural damage in spine and sacroiliac joints, whereas MRI has gained a decisive role in monitoring disease activity in clinical trials and practice. MRI may also, if ongoing research demonstrates a sufficient reliability and sensitivity to change, become a new standard method for assessment of structural damage. Ultrasonography allows visualization of peripheral arthritis and enthesitis, but has no role in the assessment of axial manifestations. Computed tomography is a sensitive method for assessment of structural changes in the spine and sacroiliac joints, but its clinical utility is limited due to its use of ionizing radiation and lack of ability to assess the soft tissues. It is exciting that with continued dedicated research and the rapid technical development it is likely that even larger improvements in the use of imaging may occur in the decade to come, for the benefit of our patients.

scholarly journals Ultrasound Diagnosed Disorders of Subacromial Shoulder Pain Patients: A Retrospective Study at a Tertiary Care Rural Hospital, Mewat, Haryana

2021 ◽  
Author(s):  
Depinder Kaur ◽  
Harnam Madan ◽  
Surendra Kumar ◽  
Saurabh Anand ◽  
Manjeet Dhanda
Keyword(s):  
Shoulder Pain ◽  
Soft Tissues ◽  
Low Cost ◽  
Tertiary Care ◽  
Diagnostic Ultrasound ◽  
Joint Involvement ◽  
Diagnostic Modality ◽  
Joint Pathology ◽  
Pain Patients ◽  
Underlying Pathology

Introduction: Shoulder pain is leading cause of disability and pain among musculoskeletal pain patients. Ultrasound is coming in a bigger way for diagnosis and management of subacromial pain due to its low cost, easy availability and accuracy in detecting soft tissues pathologies and for planning further treatment. Aim: To assess the role of diagnostic Ultrasound (US) in subacromial shoulder pathologies evaluation in shoulder pain patients. Materials and Methods: This was a retrospective observational study conducted on 98 patients who presented with subacromial shoulder pain. Diagnostic ultrasound examination was done and patients were categorised based upon underlying pathology and analysed in terms of frequency. Results: Most common ultrasound findings in subacromial shoulder pain patients were subacromial bursopathy 46 (46.93%) followed by Rotator cuff pathology including tear 38 (38.77%), mixed pathology 9 (9.18%) and Acromioclavicular (AC) joint pathology 5 (5.10%). Isolated biceps pathology was not seen in our study rather biceps pathology along with other tendon and joint involvement was observed. Conclusion: The findings in the present study imply that diagnostic ultrasound of shoulder pain patients helps to stratify them into different categories for better understanding of underlying pathology and targeted treatment approach. Ultrasound shall be used as an outpatient primary diagnostic modality for evaluation of subacromial shoulder pain patients.

scholarly journals Arthroscopic Debridement for Irreparable Rotator Cuff Tears

2016 ◽  
Vol 10 (1) ◽  
pp. 324-329 ◽  
Author(s):  
N. Hawi ◽  
U. Schmiddem ◽  
M. Omar ◽  
T. Stuebig ◽  
C. Krettek ◽  
...  
Keyword(s):  
Rotator Cuff ◽  
Structural Damage ◽  
Soft Tissues ◽  
Therapeutic Options ◽  
Rotator Cuff Tears ◽  
Salvage Procedure ◽  
Arthroscopic Debridement ◽  
Main Complaint ◽  
Reduction Of Pain

Background: Arthroscopic debridement represents a salvage procedure for irreparable rotator cuff tears. It is important to accurately diagnose the patient for irreparable rotator cuff tears. The diagnosis and the therapeutic options must be explained to the patient. It is mandatory that the patient understands the primary goal of the arthroscopic debridement being reduction of pain, not improving strength or function. Methods: The procedure consists of 7 distinct steps to debride the soft tissues and alleviate pain. Results: Even though there is a lack of evidence that this procedure is superior to other therapeutic options, it has shown good results in patients with the main complaint of pain. Conclusion: The results reported in some studies should, however, be interpreted with caution, taking into consideration the substantial structural damage in irreparable defects.

Evaluation of single-electron movies of glutamine synthetase molecules

1983 ◽  
Vol 41 ◽  
pp. 280-281
Author(s):  
W. Kunath ◽  
E. Zeitler ◽  
M. Kessel
Keyword(s):  
Electron Microscope ◽  
Glutamine Synthetase ◽  
Electron Irradiation ◽  
Structural Damage ◽  
Structural Changes ◽  
Single Electron ◽  
Continuous Series ◽  
Digital Recording ◽  
Recording Device ◽  
Low Exposure

The features of digital recording of a continuous series (movie) of singleelectron TV frames are reported. The technique is used to investigate structural changes in negatively stained glutamine synthetase molecules (GS) during electron irradiation and, as an ultimate goal, to look for the molecules' “undamaged” structure, say, after a 1 e/Å2 dose.The TV frame of fig. la shows an image of 5 glutamine synthetase molecules exposed to 1/150 e/Å2. Every single electron is recorded as a unit signal in a 256 ×256 field. The extremely low exposure of a single TV frame as dictated by the single-electron recording device including the electron microscope requires accumulation of 150 TV frames into one frame (fig. lb) thus achieving a reasonable compromise between the conflicting aspects of exposure time per frame of 3 sec. vs. object drift of less than 1 Å, and exposure per frame of 1 e/Å2 vs. rate of structural damage.

Temperature Dependence of the Critical Electron Dose for Fatty Acid Monolayers

1982 ◽  
Vol 40 ◽  
pp. 78-79
Author(s):  
Kenneth H. Downing ◽  
Robert M. Glaeser
Keyword(s):  
Electron Beam ◽  
Fatty Acid ◽  
Inelastic Scattering ◽  
Temperature Dependence ◽  
Structural Damage ◽  
Direct Result ◽  
Second Step ◽  
Strong Temperature Dependence ◽  
Electron Dose ◽  
Covalent Bonds

The structural damage of molecules irradiated by electrons is generally considered to occur in two steps. The direct result of inelastic scattering events is the disruption of covalent bonds. Following changes in bond structure, movement of the constituent atoms produces permanent distortions of the molecules. Since at least the second step should show a strong temperature dependence, it was to be expected that cooling a specimen should extend its lifetime in the electron beam. This result has been found in a large number of experiments, but the degree to which cooling the specimen enhances its resistance to radiation damage has been found to vary widely with specimen types.

Modification of the Electron Microscope for Investigation of Fully Hydrated Biological Specimens

1969 ◽  
Vol 27 ◽  
pp. 418-419 ◽  
Author(s):  
R. C. Moretz ◽  
D. F. Parsons
Keyword(s):  
Electron Beam ◽  
Electron Microscope ◽  
Structural Damage ◽  
Lower Percentage ◽  
Vacuum Drying ◽  
Total Removal ◽  
Total Absence ◽  
Biological Studies ◽  
Electron Microscopes ◽  
Beam Damage

Short lifetime or total absence of electron diffraction of ordered biological specimens is an indication that the specimen undergoes extensive molecular structural damage in the electron microscope. The specimen damage is due to the interaction of the electron beam (40-100 kV) with the specimen and the total removal of water from the structure by vacuum drying. The lower percentage of inelastic scattering at 1 MeV makes it possible to minimize the beam damage to the specimen. The elimination of vacuum drying by modification of the electron microscope is expected to allow more meaningful investigations of biological specimens at 100 kV until 1 MeV electron microscopes become more readily available. One modification, two-film microchambers, has been explored for both biological and non-biological studies.

Rapid Critical Point Drying of Tissues in a Parr Bomb

1972 ◽  
Vol 30 ◽  
pp. 400-401
Author(s):  
C.A. Baechler ◽  
W. C. Pitchford ◽  
J. M. Riddle ◽  
C.B. Boyd ◽  
H. Kanagawa ◽  
...  
Keyword(s):  
Critical Point ◽  
Critical Pressure ◽  
Soft Tissues ◽  
Biological Tissues ◽  
Critical Temperatures ◽  
Air Drying ◽  
The Past ◽  
Critical Point Drying ◽  
Great Stress ◽  
Infiltration Techniques

Preservation of the topographic ultrastructure of soft biological tissues for examination by scanning electron microscopy has been accomplished in the past by using lengthy epoxy infiltration techniques, or dehydration in ethanol or acetone followed by air drying. Since the former technique requires several days of preparation and the latter technique subjects the tissues to great stress during the phase change encountered during air-drying, an alternate rapid, economical, and reliable method of surface structure preservation was developed. Turnbill and Philpott had used a fluorocarbon for the critical point drying of soft tissues and indicated the advantages of working with fluids having both moderately low critical pressures as well as low critical temperatures. Freon-116 (duPont) which has a critical temperature of 19. 7 C and a critical pressure of 432 psi was used in this study.

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