scholarly journals Elastography: A New Dimension in Oral and Maxillofacial Imaging

2014 ◽  
Vol 5 (2) ◽  
pp. 6-9
Author(s):  
P Balaji ◽  
Nikhat Mukhtar Gazge
Keyword(s):  
Imaging Modality ◽  
Preoperative Assessment ◽  
Elasticity Imaging ◽  
Tissue Elasticity ◽  
Tissue Stiffness ◽  
Maxillofacial Region ◽  
Non Invasive ◽  
Tissue Hardness ◽  
Oral And Maxillofacial Region ◽  
Pathological Tissues

ABSTRACT Elastography or elasticity imaging is a new non-invasive imaging modality that involves tissue stiffness assessment based on hardness (elasticity) of normal or pathological tissues. The principle being that tissue compression produces strain within the tissue leading to tissue displacement due to which tissue hardness can be estimated. This tissue elasticity resulting from compression is displayed as an image called elastogram. This technique can be particularly useful in preoperative assessment of pathological tissues which are generally harder than normal surrounding tissues. Hence, the purpose of this article is to highlight this technique and its various applications in oral and maxillofacial region. How to cite this article Gazge NM, Balaji P. Elastography: A New Dimension in Oral and Maxillofacial Imaging. J Health Sci Res 2014;5(2):6-9.

scholarly journals Muscle Ultrasonographic Elastography in Children: Review of the Current Knowledge and Application

Children ◽  
2021 ◽  
Vol 8 (11) ◽  
pp. 1042
Author(s):  
Agnieszka Cebula ◽  
Maciej Cebula ◽  
Ilona Kopyta
Keyword(s):  
Gold Standard ◽  
Current Knowledge ◽  
Imaging Modality ◽  
Paediatric Population ◽  
Muscular Diseases ◽  
Tissue Elasticity ◽  
Future Studies ◽  
Qualitative And Quantitative ◽  
Non Invasive ◽  
Quantitative Assessments

Ultrasonographic elastography is a relatively new imaging modality for the qualitative and quantitative assessments of tissue elasticity. While it has steadily gained use in adult clinical practice, including for liver diseases, breast cancer, thyroid pathologies, and muscle and tendon diseases, data on its paediatric application is still limited. Moreover, diagnosis of muscular diseases in children remains challenging. The gold standard methods, namely biopsy, electroneurography, and electromyography, are often limited owing to their invasive characteristics, possible contraindications, complications, and need for good cooperation, that is, a patient’s ability to perform certain tasks during the examination while withstanding discomfort, which is a significant problem especially in younger or uncooperative children. Genetic testing, which has broad diagnostic possibilities, often entails a high cost, which limits its application. Thus, a non-invasive, objective, repeatable, and accessible tool is needed to aid in both the diagnosis and monitoring of muscle pathologies. We believe that elastography may prove to be such a method. The aim of this review was to present the current knowledge on the use of muscle elastography in the paediatric population and information on the limitations of elastography in relation to examination protocols and factors for consideration in everyday practice and future studies.

A novel use of contrast-enhanced ultrasound in uterine artery embolization

2020 ◽  
Vol 4 ◽  
pp. 8
Author(s):  
Jemianne Bautista Jia ◽  
Eric Mastrolonardo ◽  
Mateen Soleman ◽  
Ilya Lekht
Keyword(s):  
Uterine Artery Embolization ◽  
Uterine Artery ◽  
Imaging Modality ◽  
Cost Effective ◽  
Contrast Enhanced Ultrasound ◽  
Artery Embolization ◽  
Non Invasive ◽  
Contrast Enhanced

Contrast-enhanced ultrasound (CEUS) is a cost-effective, quick, and non-invasive imaging modality that has yet to be incorporated in uterine artery embolization (UAE). We present two cases that demonstrate the utility of CEUS in UAE for the identification of uterine-ovarian collaterals which otherwise can result in ineffective fibroid treatment and non-target embolization.

Leukemic infiltration in the oral and maxillofacial region: An update

2021 ◽  
Author(s):  
Ana Carolina Velasco Pondé de Sena ◽  
José Alcides Almeida de Arruda ◽  
Fernanda Pereira Delgado Costa ◽  
Ana Paula Vilaça Lemos ◽  
Fabiana Maria Kakehasi ◽  
...  
Keyword(s):  
Maxillofacial Region ◽  
Leukemic Infiltration ◽  
Oral And Maxillofacial Region

The Use of Sonography in Pediatrics: The Bioethical Concerns in Clinical and Research Practice

2021 ◽  
pp. 875647932110350
Author(s):  
Nicole Weikle
Keyword(s):  
Clinical Setting ◽  
Imaging Modality ◽  
Pediatric Population ◽  
Well Being ◽  
Ethical Principles ◽  
Pediatric Care ◽  
Research Practice ◽  
Ethical Guidelines ◽  
Non Invasive ◽  
Clinical Pediatric

Sonography has been widely used in both a clinical and non-clinical setting. This imaging modality is a common tool of choice for both physicians and researchers. Although sonography is a non-ionizing and non-invasive tool for imaging, special considerations need to be made when working with the pediatric population. Ethical guidelines for clinical pediatric care and research need to consider the varying ethical guidelines and bioethical concerns in children. As sonographers, researchers, educators and clinicians, pediatric care and research must balance the protection of children and the need for imaging to improve pediatric well-being. The discussion of this paper will delve into The Principles Approach developed by Beauchamp and Childress. Each principle will be explored and how those ethical principles could be considered in pediatric care.

scholarly journals Role of MRI in the diagnosis of adult traumatic and obstetric brachial plexus injury compared to intraoperative findings

2020 ◽  
Vol 51 (1) ◽  
Author(s):  
Doria Mohammed Gad ◽  
Mostafa Thabet Hussein ◽  
Nagham Nabil Mahmoud Omar ◽  
Mohamed Mostafa Kotb ◽  
Mohamed Abdel-Tawab ◽  
...  
Keyword(s):  
Brachial Plexus ◽  
Tissue Characterization ◽  
Brachial Plexus Injury ◽  
Imaging Modality ◽  
Preoperative Evaluation ◽  
Diagnostic Modality ◽  
Non Invasive ◽  
Upper Limb Function ◽  
Obstetric Brachial Plexus ◽  
Sensitivity Specificity

Abstract Background Brachial plexus injury occurs following birth trauma or adult trauma as well, surgical repair is important to regain upper limb function, and preoperative evaluation with MRI is important and considered the accurate and safe imaging modality. Thirty-seven patients with clinically suspected obstetric (15 patients) or adult traumatic (22 patients) brachial plexus injury were included in our study; all of them underwent MRI examination including T1WI, T2WI, STIR, DWIBS, 3D STIR SPACE, and MR myelography sequences. Results In obstetric cases, MRI sensitivity, specificity, and accuracy for preganglionic injury were 63%, 89%, and 82%, respectively, while for postganglionic lesions, MRI sensitivity, specificity, and accuracy were 60%, 99%, and 95%, respectively. In adult cases, MRI sensitivity, specificity, and accuracy for preganglionic injury were 96%, 95%, and 95% respectively, while for postganglionic injury, MRI sensitivity, specificity, and accuracy were 60%, 100%, and 99%, respectively. Conclusion MRI represents a safe, non-invasive, diagnostic modality having the multiplanar capability and better soft tissue characterization.

scholarly journals Serial Ultrasonographic and Real-Time Elastosonographic Assessment of the Ovine Common Calcaneal Tendon, after an Experimentally Induced Tendinopathy

2021 ◽  
Vol 8 (4) ◽  
pp. 54
Author(s):  
Daniele Serrani ◽  
Antonella Volta ◽  
Franco Cingolani ◽  
Luca Pennasilico ◽  
Caterina Di Bella ◽  
...  
Keyword(s):  
Real Time ◽  
Statistical Significance ◽  
Healing Process ◽  
Tendon Healing ◽  
Tissue Elasticity ◽  
Calcaneal Tendon ◽  
Non Invasive ◽  
Type Ia ◽  
Single Operator ◽  
Experimentally Induced

Real-time elastosonography (RTE) is a recently described, non-invasive, ultrasonographic technique developed to assess tissue elasticity. The main aim of this study was to investigate the ultrasonographic and elastosonographic appearance of the common calcaneal tendon (CCT) in an ovine model, and to monitor the progression of tendon healing after an experimentally-induced tendinopathy. Sound tendons were initially evaluated (T0) with a caliper and by a single operator with ultrasound. Ultrasonographic and elastosonographic images were then acquired. Subsequently, ultrasound-guided tendon lesions were induced by injecting 500 IU of Type IA collagenases proximally to the calcaneal tuberosity. Caliper measurement, ultrasonography and elastosonography were then repeated at 15 (T1), 30 (T2) and 60 (T3) days. Clinically measured width of the tendon, ultrasonographic thickness and width and percentage of hard (Elx-t%hrd) and soft (Elx-t%sft) tissue were recorded. Statistical analysis was performed on the data collected; statistical significance was set at p < 0.05. Intra-class correlation coefficient (ICC) revealed good (0.68) repeatability of elastosonographic evaluation of the CCT. The tendon width was significantly increased when comparing T0 with T1–2 and decreased when comparing T1–2 with T3. Ultrasound-assessed thickness was significantly increased between T0–T1 and decreased between T1-T2–3. Elx-t%hrd was significantly decreased at T1–2–3 and Elx-t%sft was significantly increased at T1–2–3. In conclusion, the ovine CCT is a highly stiff structure that undergoes a severe loss of stiffness during the healing process. Thickness and width of the tendon increased during the first 30 days and then reduced progressively along the subsequent 30 days. Ultrasonographic appearance of the tendon remained severely abnormal and the tendon showed severely reduced elastic proprieties 60 days after lesion induction.

scholarly journals Cardiac MRI and Myocardial Injury in COVID-19: Diagnosis, Risk Stratification and Prognosis

Diagnostics ◽  
2021 ◽  
Vol 11 (1) ◽  
pp. 130
Author(s):  
Saagar K. Sanghvi ◽  
Logan S. Schwarzman ◽  
Noreen T. Nazir
Keyword(s):  
Risk Stratification ◽  
Myocardial Injury ◽  
Cardiac Tissue ◽  
Contractile Function ◽  
Imaging Modality ◽  
Acute Myocarditis ◽  
Myocardial Inflammation ◽  
Critical Data ◽  
Non Invasive ◽  
Risk Of Exposure

Myocardial injury is a common complication of the COVID-19 illness and is associated with a worsened prognosis. Systemic hyperinflammation seen in the advanced stage of COVID-19 likely contributes to myocardial injury. Cardiac magnetic resonance imaging (CMR) is the preferred imaging modality for non-invasive evaluation in acute myocarditis, enabling risk stratification and prognostication. Modified scanning protocols in the pandemic setting reduce risk of exposure while providing critical data regarding cardiac tissue inflammation and fibrosis, chamber remodeling, and contractile function. The growing use of CMR in clinical practice to assess myocardial injury will improve understanding of the acute and chronic sequelae of myocardial inflammation from various pathological etiologies.

scholarly journals In Vivo Imaging of Biodegradable Implants and Related Tissue Biomarkers

Polymers ◽  
2021 ◽  
Vol 13 (14) ◽  
pp. 2348
Author(s):  
Leon Riehakainen ◽  
Chiara Cavallini ◽  
Paolo Armanetti ◽  
Daniele Panetta ◽  
Davide Caramella ◽  
...  
Keyword(s):  
Imaging Modality ◽  
Imaging Techniques ◽  
Special Focus ◽  
Tissue Remodelling ◽  
Biodegradable Implant ◽  
Advantages And Disadvantages ◽  
Non Invasive ◽  
Positron Emission ◽  
Longitudinal Imaging

Non-invasive longitudinal imaging of osseointegration of bone implants is essential to ensure a comprehensive, physical and biochemical understanding of the processes related to a successful implant integration and its long-term clinical outcome. This study critically reviews the present imaging techniques that may play a role to assess the initial stability, bone quality and quantity, associated tissue remodelling dependent on implanted material, implantation site (surrounding tissues and placement depth), and biomarkers that may be targeted. An updated list of biodegradable implant materials that have been reported in the literature, from metal, polymer and ceramic categories, is provided with reference to the use of specific imaging modalities (computed tomography, positron emission tomography, ultrasound, photoacoustic and magnetic resonance imaging) suitable for longitudinal and non-invasive imaging in humans. The advantages and disadvantages of the single imaging modality are discussed with a special focus on preclinical imaging for biodegradable implant research. Indeed, the investigation of a new implant commonly requires histological examination, which is invasive and does not allow longitudinal studies, thus requiring a large number of animals for preclinical testing. For this reason, an update of the multimodal and multi-parametric imaging capabilities will be here presented with a specific focus on modern biomaterial research.

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