Effect of Water Migration between Arabinoxylans and Gluten on Baking Quality of Whole Wheat Bread Detected by Magnetic Resonance Imaging (MRI)

2012 ◽  
Vol 60 (26) ◽  
pp. 6507-6514 ◽  
Author(s):  
Juan Li ◽  
Ji Kang ◽  
Li Wang ◽  
Zhen Li ◽  
Ren Wang ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Wheat Bread ◽  
Water Migration ◽  
Resonance Imaging ◽  
Effect Of Water ◽  
Whole Wheat ◽  
Whole Wheat Bread ◽  
Magnetic Resonance Imaging Mri

scholarly journals A study of the sensitivity and specificity of the Magnetic Resonance Imaging (MRI) technique used in the diagnosis of endometriosis versus the intraoperative appearance considered the reference standard in the diagnosis of endometriosis

2021 ◽  
Vol 28 (1) ◽  
pp. 55-61
Author(s):  
Alexandra RADU ◽  
◽  
Elvira BRATILA ◽  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Sensitivity And Specificity ◽  
Reference Standard ◽  
Resonance Imaging ◽  
First Line ◽  
Magnetic Resonance Imaging Mri ◽  
Asymptomatic Women ◽  
Bladder Invasion

Endometriosis is a gynecological pathology with chronic symptoms, which negatively affects the patient’s quality of life. The prevalence of endometriosis in asymptomatic women is between 2% and 50%, depending on the populations studied and the method of diagnosis. The severity of the symptoms as well as the probability of diagnosing endometriosis increases with age9. Because endometriosis is a gynecological condition with a nonspecific clinical picture, sometimes even asymptomatic, imaging technology can be considered the first line of diagnosis for this pathology. The main objective of this study is to evaluate the sensitivity and specificity of nuclear magnetic resonance imaging (MRI) used in the diagnosis of endometriotic lesions depending on their location, and compare the results obtained with the intraoperative appearance considered a reference standard in the diagnosis of endometriosis. Our study revealed the highest specificity for MRI in the case of endometriotic bladder invasion, respectively the highest sensitivity for endometriotic rectal nodules.

Gadolinium In Medicine-An Evaluation and Update

2020 ◽  
pp. 1-7
Author(s):  
Blaurock-Busch Eleonore
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Chelating Agents ◽  
The Body ◽  
Imaging Procedures ◽  
Resonance Imaging ◽  
Intravenous Drugs ◽  
Gadolinium Retention ◽  
Magnetic Resonance Imaging Mri

Gadolinium-Based Contrast Agents (GBCA) are intravenous drugs used in diagnostic imaging procedures to enhance the quality of Magnetic Resonance Imaging (MRI) or Magnetic Resonance Angiography (MRA). FDA alerts concerning potential side effects increased patient and medical concerns. More recent FDA information indicate that ionic gadolinium is released from some GBCAs, potentially causing gadolinium toxicity. We checked if gadolinium is excreted renally without intervention after previous administration of GBCAs, and if chelating agents are effective in removing gadolinium that may have remained in the body after GBCA administration. Through the evaluation of our internal database and the studies of others, we concluded that no clear consensus exists at this time. While the DTPAs may be the choice of chelators for the removal of gadolinium from the human body, further studies are needed to prove this. It seems clear, however, that microcyclic GBCAs provide a lesser risk of causing gadolinium retention and gadolinium toxicity symptoms.

scholarly journals Initial experience of using an iron-containing fiducial marker for radiotherapy of prostate cancer: Advantages in the visualization of markers in Computed Tomography and Magnetic Resonance Imaging

2016 ◽  
Vol 22 (4) ◽  
pp. 93-96 ◽  
Author(s):  
Osamu Tanaka ◽  
Takayoshi Iida ◽  
Hisao Komeda ◽  
Masayoshi Tamaki ◽  
Kensaku Seike ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Computed Tomography ◽  
Magnetic Resonance ◽  
Cone Beam Ct ◽  
Intensity Modulated Radiotherapy ◽  
Resonance Imaging ◽  
Magnetic Resonance Imaging Mri ◽  
The Right ◽  
Planning Ct

Abstract Visualization of markers is critical for imaging modalities such as computed tomography (CT) and magnetic resonance imaging (MRI). However, the size of the marker varies according to the imaging technique. While a large-sized marker is more useful for visualization in MRI, it results in artifacts on CT and causes substantial pain on administration. In contrast, a small-sized marker reduces the artifacts on CT but hampers MRI detection. Herein, we report a new ironcontaining marker and compare its utility with that of non-iron-containing markers. Five patients underwent CT/MRI fusion-based intensity-modulated radiotherapy, and the markers were placed by urologists. A Gold Anchor™ (GA; diameter, 0.28 mm; length, 10 mm) was placed using a 22G needle on the right side of the prostate. A VISICOIL™ (VIS; diameter, 0.35 mm; length, 10 mm) was placed using a 19G needle on the left side. MRI was performed using T2*-weighted imaging. Three observers evaluated and scored the visual qualities of the acquired images. The mean score of visualization was almost identical between the GA and VIS in radiography and cone-beam CT (Novalis Tx). The artifacts in planning CT were slightly larger using the GA than using the VIS. The visualization of the marker on MRI using the GA was superior to that using the VIS. In conclusion, the visualization quality of radiography, conebeam CT, and planning CT was roughly equal between the GA and VIS. However, the GA was more strongly visualized than was the VIS on MRI due to iron containing.

scholarly journals Effect of Metallic Ureteric Stents on Magnetic Resonance Imaging: Implications for Malignant Ureteral Obstruction

2021 ◽  
Vol 2 (4) ◽  
pp. 256-258
Author(s):  
Mahima Tellambura ◽  
Isaac Thangasamy ◽  
Kwang Chin ◽  
Declan Murphy
Keyword(s):  
Magnetic Resonance Imaging ◽  
Clinical Trials ◽  
Magnetic Resonance ◽  
Ureteric Obstruction ◽  
Resonance Imaging ◽  
Ureteric Stents ◽  
Diagnostic Certainty ◽  
Malignant Ureteral Obstruction ◽  
Magnetic Resonance Imaging Mri

Metallic ureteric stents are increasingly used for the management of malignant ureteric obstruction, a commonly encountered complication in urological and other malignancies. However, there has been limited evaluation of complications associated with these stents, including those that might arise from the use of magnetic resonance imaging (MRI). While most devices are deemed nominally “MRI-safe,” their implication on the quality of imaging produced has not been evaluated in clinical trials, and in our practice, significant artefact has been encountered with some ureteric stents—specifically, the Teleflex Rüsch DD tumour stent—compromising image quality and diagnostic certainty.

scholarly journals Review of Russian regulatory documents on the organization and functioning of offices and departments of magnetic resonance imaging.

2022 ◽  
Author(s):  
Aleksey V. Smirnov ◽  
Dmitriy S. Semenov ◽  
Ekaterina S. Ahkmad ◽  
Anna N. Khoruzhaya ◽  
Sergey Aleksandrovich Kruchinin
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Point Of View ◽  
Resonance Imaging ◽  
X Ray ◽  
Regulatory Documents ◽  
The Past ◽  
X Ray Imaging ◽  
Magnetic Resonance Imaging Mri

Diagnostic studies carried out using any medical equipment require comprehensive control, which is provided by a number of regulatory documents. Particular attention is paid to X-ray imaging methods, but in the field of magnetic resonance imaging (MRI), one can notice both the lack of this attention and the multidirectional efforts to normalize. This is understandable - this diagnostic method is not based on the use of ionizing radiation, and although magnetic fields have some effect on human health, especially on personnel who work in MRI rooms all the time, they are safe for patients who come to the diagnostic procedure from time to time. time and do not have in their body foreign metal (steel implants) or electronic (pacemakers, neurostimulators) objects. However, ignorance and non-compliance with both advisory and mandatory requirements can significantly increase the risk of harm to patients or staff, as well as lead to a decrease in the quality of imaging and diagnostics. A separate feature of the field of MRI regulation is that over the past decades, more than a dozen different standards, sanitary norms, rules, letters and recommendations have been published or revised, a significant part of which complement or duplicate each other, or completely contradict each other. As a result, the need to ensure compliance of the MRI room / department with the requirements of regulatory documents is greatly complicated. This paper provides an overview of the regulatory documentation in force in Russia related to the organization and functioning of an MRI room / department, highlights the aspects that are most important from the point of view of safe and high-quality operation, and formulates the steps necessary to modernize the system, both from the point of view of the quality of diagnostics. and the safety of MRI studies.

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.

Sign in / Sign up

Export Citation Format

Share Document