scholarly journals The Importance of Light Diagnosis in Joint Injuries of the Walls of the Upper Jaw Cavity

2021 ◽  
pp. 1-5
Author(s):  
Boymuradov Shukhrat Abdujalilovich ◽  
◽  
Karimberdiev Bakhriddin Ismatullaevich ◽  
Bakieva Shakhlo Khamidullaevna ◽  
◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Intraoperative Complications ◽  
Structural Features ◽  
Resonance Imaging ◽  
Surgical Access ◽  
Joint Injuries ◽  
Nose And Paranasal Sinuses ◽  
Upper Jaw ◽  
Ct Data ◽  
The Individual

The article discusses the possibilities of computed tomography and magnetic resonance imaging when examining patients in an ENT clinic. The authors’ materials cover complex observations of diseases of the nose and paranasal sinuses. The patients were operated on, which made it possible to compare the data of radiation studies with operational findings and cytological material. CT scan in coronal projection allows to clarify the diagnosis, determine the possible causes of recurrent sinusitis and identify the individual structural features of the nasal cavity and PNS that contribute to the development of intraoperative complications. When analyzing CT data, special attention should be paid to identifying and correctly interpreting the intranasal anatomy. It is necessary to indicate in detail the location of the cyst of the maxillary sinus, which allows the surgeon to correctly choose the optimal surgical access.

scholarly journals The Importance of Light Diagnosis in Joint Injuries of the Walls of the Upper Jaw Cavity

2021 ◽  
Vol 1 (3) ◽  
pp. 1-5
Author(s):  
Boymuradov Shukhrat Abdujalilovich ◽  
◽  
Karimberdiev Bakhriddin Ismatullaevich ◽  
Bakieva Shakhlo Khamidullaevna ◽  
◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Intraoperative Complications ◽  
Structural Features ◽  
Resonance Imaging ◽  
Surgical Access ◽  
Joint Injuries ◽  
Nose And Paranasal Sinuses ◽  
Upper Jaw ◽  
Ct Data ◽  
The Individual

The article discusses the possibilities of computed tomography and magnetic resonance imaging when examining patients in an ENT clinic. The authors' materials cover complex observations of diseases of the nose and paranasal sinuses. The patients were operated on, which made it possible to compare the data of radiation studies with operational findings and cytological material. CT scan in coronal projection allows to clarify the diagnosis, determine the possible causes of recurrent sinusitis and identify the individual structural features of the nasal cavity and PNS that contribute to the development of intraoperative complications. When analyzing CT data, special attention should be paid to identifying and correctly interpreting the intranasal anatomy. It is necessary to indicate in detail the location of the cyst of the maxillary sinus, which allows the surgeon to correctly choose the optimal surgical access.

scholarly journals Use of Magnetic Resonance Imaging to Predict Outcome after Stroke: A Review of Experimental and Clinical Evidence

2010 ◽  
Vol 30 (4) ◽  
pp. 703-717 ◽  
Author(s):  
Tracy D Farr ◽  
Susanne Wegener
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Complete Recovery ◽  
Research Translation ◽  
Resonance Imaging ◽  
Preclinical Research ◽  
Stroke Research ◽  
Future Potential ◽  
Magnetic Resonance Imaging Mri ◽  
The Individual

Despite promising results in preclinical stroke research, translation of experimental data into clinical therapy has been difficult. One reason is the heterogeneity of the disease with outcomes ranging from complete recovery to continued decline. A successful treatment in one situation may be ineffective, or even harmful, in another. To overcome this, treatment must be tailored according to the individual based on identification of the risk of damage and estimation of potential recovery. Neuroimaging, particularly magnetic resonance imaging (MRI), could be the tool for a rapid comprehensive assessment in acute stroke with the potential to guide treatment decisions for a better clinical outcome. This review describes current MRI techniques used to characterize stroke in a preclinical research setting, as well as in the clinic. Furthermore, we will discuss current developments and the future potential of neuroimaging for stroke outcome prediction.

Integrating Magnetic Resonance Imaging Postprocessing Results into Neuronavigation for Electrode Implantation and Resection of Subtle Focal Cortical Dysplasia in Previously Cryptogenic Epilepsy

Neurosurgery ◽  
2010 ◽  
Vol 66 (1) ◽  
pp. 187-195 ◽  
Author(s):  
Jörg Wellmer ◽  
Yaroslav Parpaley ◽  
Marec von Lehe ◽  
Hans-Jürgen Huppertz
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
High Resolution ◽  
Morphometric Analysis ◽  
Region Of Interest ◽  
Normal Database ◽  
Resonance Imaging ◽  
Electrode Implantation ◽  
Neuronavigation System ◽  
The Individual

Abstract OBJECTIVE Focal cortical dysplasias (FCDs) are highly epileptogenic lesions. Surgical removal is frequently the best treatment option for pharmacoresistant epilepsy. However, subtle FCDs may remain undetected even after high-resolution magnetic resonance imaging (MRI). Morphometric MRI analysis, which compares the individual brain with a normal database, can facilitate the detection of FCDs. We describe how the results of normal database–based MRI postprocessing can be used to guide stereotactic electrode implantation and subsequent resection of lesions that are suspected to be FCDs. METHODS A presurgical evaluation was conducted on a 19-year-old woman with pharmacoresistant hypermotor seizures. Conventional high-resolution MRI was classified as negative for epileptogenic lesions. However, morphometric analysis of the spatially normalized MRI revealed abnormal gyration and blurring of the gray-white matter junction, which was suggestive of a small and deeply seated FCD in the left frontal lobe. RESULTS The brain region highlighted by morphometric analysis was marked as a region of interest, transferred back to the original dimension of the individual MRI, and imported into a neuronavigation system. This allowed the region of interest–targeted stereotactic implantation of 2 depth electrodes, by which seizure onset was confirmed in the lesion. The electrodes also guided the final resection, which rendered the patient seizure-free. The lesion was histologically classified as FCD Palmini and Lüders IIB. CONCLUSION Transferring normal database–based MRI postprocessing results into a neuronavigation system is a new and worthwhile extension of multimodal neuronavigation. The combination of resulting regions of interest with functional and anatomic data may facilitate planning of electrode implantation for invasive electroencephalographic recordings and the final resection of small or deeply seated FCDs.

Fixation of Unstable Osteochondritis Dissecans Lesions and Displaced Osteochondral Fragments Using New Biodegradable Magnesium Pins in Adolescents

Cartilage ◽  
2020 ◽  
pp. 194760352094294
Author(s):  
Oliver D. Jungesblut ◽  
Menard Moritz ◽  
Alexander S. Spiro ◽  
Ralf Stuecker ◽  
Martin Rupprecht
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Osteochondritis Dissecans ◽  
Intraoperative Complications ◽  
X Rays ◽  
Resonance Imaging ◽  
Short Term ◽  
Pediatric Orthopedic ◽  
Time Of Operation ◽  
Biodegradable Magnesium

Objective Fixation of unstable osteochondritis dissecans (OCD) lesions and displaced osteochondral fragments are frequently performed procedures in pediatric orthopedic surgery. Since 2018, CE-certified MAGNEZIX pins are used in our institution in these cases. The aim of this study was (1) to analyze safety, efficiency, and limitations of magnesium-pin-based fixation of unstable OCD lesions and displaced osteochondral fragments and (2) to report clinical and radiological outcomes at short-term follow-up (FU). Design In this prospective cohort study, 19 patients (10 girls and 9 boys) were included. Inclusion criteria were (1) magnetic resonance imaging–confirmed unstable OCD lesion or displaced osteochondral fragment, (2) fixation with magnesium-based pins, and (3) minimum FU of 6 months. X-rays were taken 6 weeks and 6 months after operation and magnetic resonance imaging scans every 4 to 6 months to assess the healing progress. Results In total 67 pins were used, with a mean of 3.6 ± 1.4 per patient. Average age at surgery was 13.7 years (11-17 years). Mean time of operation was 56 ± 31 minutes, including arthroscopy, fixation, and patellar realignment ( n = 6). No intraoperative complications occurred. Average FU was 11.3 ± 4.2 months (6-20 months). No redislocation or new dislocation occurred. Until now a complete radiographic healing occurred in 12 cases. Due to an implant failure in one case 11 weeks after the index surgery a revision became necessary. Conclusions In short-term FU of 11 ± 4 months MAGNEZIX pins provide high stability after fixation of unstable OCDs and displaced osteochondral fragments leading to uncomplicated and timely healing.

Combining clinical and magnetic resonance imaging markers enhances prediction of 12-year disability in multiple sclerosis

2016 ◽  
Vol 23 (1) ◽  
pp. 51-61 ◽  
Author(s):  
Tomas Uher ◽  
Manuela Vaneckova ◽  
Lukas Sobisek ◽  
Michaela Tyblova ◽  
Zdenek Seidl ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Multiple Sclerosis ◽  
Magnetic Resonance ◽  
Cumulative Risk ◽  
Resonance Imaging ◽  
Cox Models ◽  
T2 Lesions ◽  
Therapeutic Decisions ◽  
The Individual

Background: Disease progression and treatment efficacy vary among individuals with multiple sclerosis. Reliable predictors of individual disease outcomes are lacking. Objective: To examine the accuracy of the early prediction of 12-year disability outcomes using clinical and magnetic resonance imaging (MRI) parameters. Methods: A total of 177 patients from the original Avonex-Steroids-Azathioprine study were included. Participants underwent 3-month clinical follow-ups. Cox models were used to model the associations between clinical and MRI markers at baseline or after 12 months with sustained disability progression (SDP) over the 12-year observation period. Results: At baseline, T2 lesion number, T1 and T2 lesion volumes, corpus callosum (CC), and thalamic fraction were the best predictors of SDP (hazard ratio (HR) = 1.7–4.6; p ⩽ 0.001–0.012). At 12 months, Expanded Disability Status Scale (EDSS) and its change, number of new or enlarging T2 lesions, and CC volume % change were the best predictors of SDP over the follow-up (HR = 1.7–3.5; p ⩽  0.001–0.017). A composite score was generated from a subset of the best predictors of SDP. Scores of ⩾4 had greater specificity (90%–100%) and were associated with greater cumulative risk of SDP (HR = 3.2–21.6; p < 0.001) compared to the individual predictors. Conclusion: The combination of established MRI and clinical indices with MRI volumetric predictors improves the prediction of SDP over long-term follow-up and may provide valuable information for therapeutic decisions.

Magnetic resonance imaging of wood

1986 ◽  
Vol 16 (2) ◽  
pp. 423-426 ◽  
Author(s):  
Laurance D. Hall ◽  
Vasanthan Rajanayagam ◽  
Wendy A. Stewart ◽  
Paul R. Steiner
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Structural Features ◽  
Annual Growth ◽  
Resonance Imaging ◽  
Growth Rings ◽  
Magnetic Resonance Scanner ◽  
Annual Growth Rings ◽  
Do So

A magnetic resonance scanner has been used to obtain images at 0.14 T, based on the water in aspen (Populustremuloides Michx.). In addition to visualization of the expected structural features such as annual growth-rings and knots, several additional features appear that require further study. Kiln-dried wood does not contain sufficient water to give an image, but can do so after impregnation with water.

scholarly journals Detecting microstructural deviations in individuals with deep diffusion MRI tractometry

2021 ◽  
Vol 1 (9) ◽  
pp. 598-606
Author(s):  
Maxime Chamberland ◽  
Sila Genc ◽  
Chantal M. W. Tax ◽  
Dmitri Shastin ◽  
Kristin Koller ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
White Matter ◽  
Magnetic Resonance ◽  
Diffusion Magnetic Resonance Imaging ◽  
Unmet Need ◽  
Current Approach ◽  
Resonance Imaging ◽  
Traditional Group ◽  
Individual Level ◽  
The Individual

AbstractMost diffusion magnetic resonance imaging studies of disease rely on statistical comparisons between large groups of patients and healthy participants to infer altered tissue states in the brain; however, clinical heterogeneity can greatly challenge their discriminative power. There is currently an unmet need to move away from the current approach of group-wise comparisons to methods with the sensitivity to detect altered tissue states at the individual level. This would ultimately enable the early detection and interpretation of microstructural abnormalities in individual patients, an important step towards personalized medicine in translational imaging. To this end, Detect was developed to advance diffusion magnetic resonance imaging tractometry towards single-patient analysis. By operating on the manifold of white-matter pathways and learning normative microstructural features, our framework captures idiosyncrasies in patterns along white-matter pathways. Our approach paves the way from traditional group-based comparisons to true personalized radiology, taking microstructural imaging from the bench to the bedside.

Role of magnetic resonance imaging in the evaluation of knee joint injuries with arthroscopic correlation

2018 ◽  
Vol 5 (2) ◽  
pp. 18-20
Author(s):  
T V Kishan ◽  
◽  
A Racherla ◽  
V Tummala ◽  
S Kisara4, ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Knee Joint ◽  
Resonance Imaging ◽  
Joint Injuries

IMAGING OF THE CEREBRUM

Neurosurgery ◽  
2007 ◽  
Vol 61 (suppl_1) ◽  
pp. SHC-123-SHC-146 ◽  
Author(s):  
Paul E. Kim ◽  
Chi Shing Zee
Keyword(s):  
Magnetic Resonance Imaging ◽  
Nuclear Magnetic Resonance ◽  
Rapid Development ◽  
Historical Context ◽  
X Rays ◽  
Resonance Imaging ◽  
Cerebral Imaging ◽  
The Past ◽  
History Of ◽  
The Individual

Abstract The history of the development of cerebral imaging is a complex combination of the forces of innovation at both the individual and industrial levels. Principal paradigms of neuroimaging shifted as a result of technological breakthroughs, beginning with the discovery of x-rays and continuing with the development of computerized imaging to the latest imaging paradigm, nuclear magnetic resonance imaging. We discuss these landmarks in neuroimaging in historical context, with emphasis on the particularly rapid development of imaging technology during the past 30 to 40 years, including the most recent emerging technologies.

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