Determination of the unsaturated hydraulic conductivity of clayey soil columns using Magnetic Resonance Imaging (MRI)

2014 ◽  
pp. 1155-1161
Author(s):  
S Rosin-Paumier ◽  
S Leclerc ◽  
A Abdallah ◽  
D Stemmelen
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Hydraulic Conductivity ◽  
Clayey Soil ◽  
Resonance Imaging ◽  
Soil Columns ◽  
Unsaturated Hydraulic Conductivity ◽  
Magnetic Resonance Imaging Mri

scholarly journals Comparison of radiography and magnetic resonance imaging in the diagnosis of hand osteoarthritis

2019 ◽  
Vol 57 (1) ◽  
pp. 91-99 ◽  
Author(s):  
D. M. Kudinsky ◽  
A. V. Smirnov ◽  
L. I. Alekseeva
Keyword(s):  
Magnetic Resonance Imaging ◽  
Articular Cartilage ◽  
Magnetic Resonance ◽  
Bone Marrow Edema ◽  
Soft Tissues ◽  
Joint Space ◽  
Hand Osteoarthritis ◽  
Resonance Imaging ◽  
Magnetic Resonance Imaging Mri

The article discusses the possibilities and search for the optimal concept of diagnosis of hand osteoarthritis (OA). The data of numerous studies with focus on the comparison of sensitivity and specificity of the main techniques in this type of pathology – standard radiography and magnetic resonance imaging (MRI) are presented. Determination of the earliest symptoms of OA allows to predict the development of the disease and begin its therapy. The joint space narrowing due to the loss of articular cartilage is the earliest radiological symptom of OA, which is observed in the advanced stage of the disease. MRI, unlike radiography, makes it possible to visualize the articular cartilage, fluid in the joint cavity, bone marrow edema and soft tissues, but it is more expensive and time-consuming method. At present the main difficulty lies in the absence of a standardized system for assessing the MRI hand OA manifestations, as well as insufficient number of investigations in this area.

scholarly journals MCF-7, ACHN, and A549 Cancer Cells Characterized by Quantitative Magnetic Resonance Imaging In Vitro

2021 ◽  
Vol 12 (4) ◽  
pp. 5174-5186
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Cancer Cells ◽  
Relaxation Times ◽  
Resonance Imaging ◽  
T1 And T2 ◽  
Magnetic Resonance Imaging Mri ◽  
Mcf 7

To work with cancer cell cultures in vitro at 1.5 Tesla Magnetic Resonance Imaging (MRI), it was necessary to develop dedicated receiver coils. This device allowed to adjust the shape of the tested objects and thus improve the quality of imaging. One of the conditions for this new device was to increase the recorded signal level and reduce the distance between the tested object and the receiving elements of the coil. MCF7 (breast adenocarcinoma, Her-2 positive), ACHN (kidney cancer cells), and A549 (lung cancer cells) were characterized by using magnetic resonance imaging (MRI) in vitro. MRI measurements were performed using the clinical scanner with a 1.5 Tesla magnetic field. MCF-7, ACHN, and A549 cancer cells were characterized by T1 and T2 relaxation times. For MCF-7 cells, the relaxation times T1 and T2 were 2360 ± 12 ms and 116 ± 0.9 ms, respectively. For ACHN cells, the relaxation times T1 and T2 were 1354 ± 193 ms and 80 ± 9 ms, respectively. Values of T1 and T2 for A549 cancer cells cultures were 1527 ± 59 ms and 150 ± 8 ms, respectively. Once an accurate pulse protocol has been established and satisfactory reproducibility was obtained, the determination of relaxation times can be used as a tool to monitor cancer cell cultures using MRI in vitro based on the determination of changes in relaxation times.

scholarly journals MRI-Diagnostics of Injuries and Diseases of the Ankle Joint and Foot (Review of Literature)

2020 ◽  
pp. 43-52
Author(s):  
K.A. Radchenko ◽  
O.G. Gayko
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Soft Tissue ◽  
Ankle Joint ◽  
Diagnostic Efficiency ◽  
Review Of Literature ◽  
Resonance Imaging ◽  
Magnetic Resonance Imaging Mri ◽  
Mri Diagnostics

Summary. Diseases and injuries of the ankle joint and foot make up 6-12% of the total number of injuries and diseases of the musculoskeletal system. The article is devoted to the main diagnostic possibilities of magnetic resonance imaging (MRI), determination of indications for examination and protocols for the study of the ankle joint and foot. Based on the analysis of literature data, the high diagnostic efficiency of MRI in the identified pathologies of bone and soft tissue structures of this segment of the lower extremity was determined.

Magnetic resonance imaging assisted management in five cases of suspected quittor

2016 ◽  
Vol 29 (01) ◽  
pp. 75-82 ◽  
Author(s):  
Sarah Taylor ◽  
Raphael Labens ◽  
Eugenio Cillán-García ◽  
Lucinda Meehan
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Treatment Planning ◽  
Accurate Determination ◽  
Successful Outcome ◽  
Resonance Imaging ◽  
Mri Examination ◽  
Magnetic Resonance Imaging Mri ◽  
Assisted Management

Summary Objectives: Assessment of the usefulness of magnetic resonance imaging (MRI) in treatment planning in suspected cases of quittor in the horse. Methods: Five horses with chronic discharging tracts at the level of the foot underwent MRI for treatment planning. Results: The MRI examination revealed variable involvement of soft tissue and osseous structures of the foot in addition to abnormalities of the ungular cartilages in all cases. In two cases, follow-up MRI examination was performed. Four of five horses had a successful outcome, with three of these undergoing only one surgical procedure and one being managed medically. Clinical significance: We believe that the use of preoperative MRI facilitated accurate determination of the structures involved in cases of quittor, guiding the management, surgical approach and postoperative therapy.

scholarly journals Magnetic Resonance Imaging and Its Applications in Dentistry: A review

2019 ◽  
Vol 4 (1) ◽  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Paranasal Sinuses ◽  
Temporomandibular Disorders ◽  
Soft Tissues ◽  
Noninvasive Method ◽  
Resonance Imaging ◽  
Magnetic Resonance Imaging Mri ◽  
Application Fields

Magnetic resonance imaging (MRI) is currently one of the essential imaging methods in medicine. Since it is a noninvasive method that does not use ionizing radiation, its applications are getting more and more attention in the dentistry field. MRI is specifically used for the evaluation of soft tissues. Temporomandibular disorders, paranasal sinuses, determination of lesion contents and endodontics are just some of the application subjects. The aim of this review is to inform dentists and oral surgeons about the application fields of MRI.

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