scispace - formally typeset
Search or ask a question

Answers from top 6 papers

More filters
Papers (6)Insight
Thus, the open MRI has sufficient geometric accuracy for most radiation therapy planning and is temporally stable.
Its ease of use and applicability to a variety of MRI situations make it attractive for evaluating image quality in a variety of MR studies.
Extensive experiments on open-access MRI images have validated the effectiveness of the proposed method.
This device was found to be quite helpful for planning and guiding stereotactic procedures in the open MRI scanner.
To this end, MRI is an appropriate tool.
Performing IMRT allows for the seamless integration with, and simultaneous operation of, an open MRI unit.

See what other people are reading

Is the relationship between fatigue caused by exercise and injury clear?
5 answers
The relationship between fatigue caused by exercise and injury is evident in the literature. Studies have shown that exercise-induced fatigue can lead to an increased risk of musculoskeletal injuries. Specifically, research highlights that neuromuscular fatigue can significantly elevate the risk of anterior cruciate ligament injuries, especially during activities like distance jumping and landing on one foot. Additionally, non-contact injuries, such as anterior cruciate ligament ruptures, are often linked to emerging processes due to exercise-induced fatigue, emphasizing the importance of assessing inter-limb asymmetries during physical load to identify injury precursors. Furthermore, investigations utilizing MRI techniques have demonstrated changes in muscle metabolism and injury patterns following exercise, indicating the impact of fatigue on muscle function. Overall, the data collectively suggest a clear association between exercise-induced fatigue and musculoskeletal injuries.
What are the features of infiltrative HCC?
5 answers
Infiltrative hepatocellular carcinoma (HCC) is characterized by small tumor nodules spreading diffusely across the liver, lacking a distinct mass-like lesion. It presents as a markedly heterogeneous area on ultrasonography and a poorly defined hepatic region on MRI, often blending into the background of cirrhosis. Infiltrative HCC is associated with poor prognosis due to late discovery and advanced stage at diagnosis. This subtype is linked to multifocal tumors, vessel invasion, and larger tumor sizes, impacting overall survival significantly, especially in tumors ≥ 4 cm. Understanding the imaging features of infiltrative HCC is crucial for timely diagnosis and effective management. Additionally, the tumor microenvironment plays a crucial role in the progression and malignancy of infiltrative basal cell carcinoma, a subtype of BCC, emphasizing the importance of cellular heterogeneity in understanding and treating these aggressive cancers.
How a deep learning method works in detecting motion artifacts?
4 answers
A deep learning method for detecting motion artifacts involves training neural networks to identify and correct these artifacts in medical imaging. By utilizing computer-generated datasets, such methods can classify dynamic and static frames, correct motion in dynamic frames, and preserve original structures without discarding any frames. Additionally, deep learning models can be trained to filter motion-corrupted images, detect phase-encoding lines affected by motion, and reconstruct final images using unaffected data, effectively reducing motion artifacts in magnetic resonance imaging. Furthermore, deep learning-based algorithms have been developed to automatically detect and grade motion-related artifacts in liver MRI, showcasing high sensitivity and specificity in detecting these artifacts. These approaches demonstrate the effectiveness of deep learning in mitigating motion artifacts across various medical imaging modalities.
What is the relationship between radiomics and genomics in breast cancer?
5 answers
Radiomics and genomics are interconnected in breast cancer research, aiming to enhance personalized treatment strategies. Radiomics involves extracting quantitative data from radiological images, while genomics focuses on genetic/molecular traits. The integration of radiomics and genomics, known as radiogenomics, explores the relationship between radiological features and genetic characteristics of tumors. Deep radiomic features extracted from MRI images have shown significant associations with molecular profiles of breast cancer, aiding in predicting clinical characteristics and genomic factors. Additionally, ultrasound radiomic features have been correlated with HER2-related genes, leading to the development of a radiomics model to predict HER2 status in breast cancer. This integration of radiomics and genomics holds promise in advancing personalized medicine and improving patient outcomes in breast cancer care.
What is CT Dose Index (CTDI)?
5 answers
CT Dose Index (CTDI) is a crucial measure of radiation dose output in computed tomography (CT) imaging. It is utilized to assess the radiation dose received by patients during CT examinations. Various studies have explored CTDI in different contexts, such as evaluating dose indices for different imaging protocols, studying size-specific dose estimates (SSDE) for different body regions, assessing radiation doses during practical CT examinations, validating methods for evaluating SSDE in lower limbs, and investigating the relationship between CTDI and body size indices in adult CT scans. These studies highlight the importance of CTDI in managing and optimizing radiation doses in CT imaging, emphasizing the need for accurate dose estimation and patient safety.
What is the source of the TMD and myofacial pain?
5 answers
The source of Temporomandibular Disorders (TMD) and myofascial pain can be multifactorial. TMD encompasses musculoskeletal and neuromuscular conditions affecting the temporomandibular joint (TMJ) and masticatory muscles, often linked to trigeminal nerve branches. Myofascial pain syndrome, a common cause of TMD, is characterized by trigger points in masticatory muscles, exacerbated by parafunctional activities like teeth clenching. Etiological models suggest that myogenous TMD pain may result from muscle overload due to behaviors like sleep bruxism, possibly compounded by psychological factors. Treatment for TMD and myofascial pain involves a multidisciplinary approach, including patient education, biobehavioral strategies, therapeutic exercises, trigger point dry needling, pharmacotherapy, and oral appliances. Additionally, myofascial pain dysfunction syndrome, prevalent in females, is associated with stress, anxiety, and bruxism, leading to symptoms like muscle tenderness, clicking TMJ noises, and limited jaw movement.
How does osteoporosis make bones fragile?
5 answers
Osteoporosis leads to bone fragility through a decrease in bone mineral density (BMD) and disrupted microarchitecture. This metabolic disease causes bones to weaken and become more susceptible to fractures, particularly in the hip, spine, and wrist. Factors like aging, decreased calcium and vitamin D levels, and low physical activity contribute to the weakening of bone tissue, making bones more fragile and prone to fractures. In young individuals, especially when fragility fractures occur without an obvious cause, investigations may reveal underlying monogenetic bone diseases that further exacerbate bone fragility. The loss of bone mass and strength due to osteoporosis ultimately compromises the structural integrity of bones, increasing their fragility and susceptibility to fractures, highlighting the critical importance of early diagnosis and appropriate management of this condition.
What is the relationship between hippocampal dosimetry and cognitive and memory disorders in cerebral glioma patients?
4 answers
Hippocampal dosimetry plays a crucial role in cognitive and memory outcomes in cerebral glioma patients undergoing radiotherapy. Studies have shown that higher doses to the hippocampus are associated with cognitive decline, especially in older patients. Additionally, acute neurocognitive toxicity may be linked to increased doses to the hippocampus. However, it is noted that adhering to standard hippocampal dose constraints may not always prevent cognitive decline in older adults. Furthermore, specific dosimetric endpoints, such as mean dose to the hippocampus, have been correlated with neurocognitive outcomes over time. Therefore, optimizing hippocampal dosimetry during radiotherapy is crucial to mitigate cognitive and memory disorders in cerebral glioma patients.
What is evaluation of dose in CT scan of the pediatric patients?
5 answers
The evaluation of dose in CT scans of pediatric patients is crucial due to their higher sensitivity to ionizing radiation. Studies have shown that pediatric patients receive high doses during CT examinations, with doses ranging from 3.0 to 95.0 mGy for brain CT and 84.0 to 2510.0 mGy cm for abdomen CT. Effective doses per scan for brain, chest, and abdominal procedures were found to be 49.7, 34, and 40 mSv, respectively, emphasizing the need for dose-reduction measures to minimize radiation-induced malignancies in children. Furthermore, specific radiation dosimetry for whole-body PET/CT imaging in pediatric patients aged 4 to 14 years old has been evaluated, highlighting the importance of considering different ages, sizes, and anatomies for accurate dose assessment.
What are the potential benefits of incorporating mindfulness meditation into everyday life?
5 answers
Incorporating mindfulness meditation into everyday life can yield numerous benefits for mental and emotional well-being. Mindfulness practices have gained popularity across various domains, from work environments to school settings, due to their positive impacts on cognitive functioning, stress reduction, emotional well-being, and social skills. Research suggests that mindfulness meditation can lead to a reduction in stress levels, promote calmness, lower the production of stress hormones, enhance emotional resilience, improve cognitive function, and aid in better sleep patterns. By cultivating self-awareness, inner stability, and self-compassion, individuals can navigate stressors with clarity and efficiency, ultimately improving their overall well-being and relationships with themselves and others.
How have advancements in biotechnology impacted the development of precision medine? medicine?
5 answers
Advancements in biotechnology have significantly influenced the evolution of precision medicine. The integration of nucleic acid engineering and analysis techniques, such as polymerase chain reaction and sequencing, has enabled the discovery of biomarkers, mapping of cellular signaling cascades, and the design of tailored therapeutics. Furthermore, the identification of druggable gene aberrations and the use of predictive biomarkers have enhanced innovative therapeutic strategies in cancer care. Emerging technologies like artificial intelligence, machine learning, and big data mining are playing a crucial role in personalized healthcare, paving the way for more precise and effective treatments. Additionally, advancements in magnetic resonance imaging technology have improved diagnostic capabilities, contributing to the advancement of precision medicine in disease management. Epigenetic research in melanoma has also highlighted the importance of understanding genetic and epigenetic interactions for personalized treatment approaches.