Three-dimensional printing - assisted planning for complete and safe resection of  retroperitoneal tumor.

Three-dimensional printing - assisted planning for complete and safe resection of retroperitoneal tumor. J Xray Sci Technol. 2020 Mar 18;: Authors: Sun G, Ding B, Yu G, Chen L, Wang Z, Wang S, Chen X Abstract BACKGROUND: Surgery is usually recommended to treat retroperitoneal tumors. However, complete surgical resections often remain challenging. OBJECTIVE: To assess the assistant role of three-dimensional (3D) imaging and printing model in retroperitoneal tumor resection, as well as compare the difference between 3D printing and computed tomography (CT) in preoperative planning and confidence building. METHODS: We admitted a patient with retroperitoneal mass (13.0×6.4×14.8 cm) adjacent to important abdominal blood vessels whose surgery was thought to be difficult. 3D printing and CT was arranged. A novel questionnaire and scoring system consisting of surgery difficulty and safety were designed to compare doctors understanding and confidence for surgery based on 3D printing and CT. Twenty-four doctors completed the scoring table based on CT and then 3D imaging, respectively. Paired t-test was applied for statistics analysis. RESULTS: Preoperative evaluation based on 3D printing indicated that the tumor could be removed completely. The operation lasted 120 minutes to successfully remove the tumor and the estimated blood loss was less than 100 ml. Scores based on 3D printing is significantly higher than CT in difficulty and ...
Source: Journal of X-Ray Science and Technology - Category: Radiology Tags: J Xray Sci Technol Source Type: research

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Medical imaging saves millions of lives each year, helping doctors detect and diagnose a wide range of diseases, from cancer and appendicitis to stroke and heart disease. Because non-invasive early disease detection saves so many lives, scientific investment continues to increase. Artifical intelligence (AI) has the potential to revolutionize the medical imaging industry by sifting through mountains of scans quickly and offering providers and patients with life-changing insights into a variety of diseases, injuries, and conditions that may be hard to detect without the supplemental technology. Images are the largest source...
Source: MDDI - Category: Medical Devices Authors: Tags: Imaging Source Type: news
Sir —We thank Khan et al. for their interest in our statement.1 We agree that there is a discrepancy in the article by Huang et al. between the results and Table 2.2 We should point out that the data collection section of the Methods in that paper states “We reviewed clinical charts, nursing reco rds, laboratory findings and chest X-rays for all patients with laboratory confirmed 2019-nCoV infection”; there is no mention of computed tomography (CT) in the methods, although they mention CT in their results and their images, while Table 2 mentions “bilateral involvement of chest ra...
Source: Clinical Radiology - Category: Radiology Authors: Tags: Correspondence Source Type: research
Pectus excavatum (PE) is the most common congenital chest wall anomaly with a reported incidence of 1/300 to 1/400 live births and a male predominance. Preoperative evaluation of defect severity typically requires a calculation of the Haller index (HI) and/or correction index (CI) using computed tomography (CT) or x-rays. The purpose of this study was to determine whether physician-estimated depth (PED), a bedside screening tool, could be used to identify a subset of pediatric patients in whom CT was unnecessary.
Source: Journal of Surgical Research - Category: Surgery Authors: Source Type: research
While most people are familiar with the hallmark symptoms of COVID-19 by now—cough, fever, muscle aches, headaches and difficulty breathing—a new crop of medical conditions are emerging from the more than 4 million confirmed cases of the disease around the world. These include skin rashes, diarrhea, kidney abnormalities and potentially life-threatening blood clots. It’s not unusual for viruses to directly infect and affect different tissues and organs in the body, but it is a bit unusual for a primarily respiratory virus like SARS-CoV-2, which is responsible for COVID-19, to have such a wide-ranging reach...
Source: TIME: Health - Category: Consumer Health News Authors: Tags: Uncategorized COVID-19 Source Type: news
Some of the first CT angiography images documenting the rapid progression of...Read more on AuntMinnie.comRelated Reading: COVID-19 can be seen on CT scans outside the chest AMVC 2020: Leading radiology's fight against COVID-19 Chest x-rays in the ER predict COVID-19 severity MRI illuminates neurologic manifestations of COVID-19 AMVC 2020: Artificial intelligence for COVID-19 detection
Source: Headlines - Category: Radiology Source Type: news
Authors: Shi L, Liu B, Yu H, Wei C, Wei L, Zeng L, Wang G Abstract Computed tomography (CT) has been widely applied in medical diagnosis, nondestructive evaluation, homeland security, and other science and engineering applications. Image reconstruction is one of the core CT imaging technologies. In this review paper, we systematically reviewed the currently publicly available CT image reconstruction open source toolkits in the aspects of their environments, object models, imaging geometries, and algorithms. In addition to analytic and iterative algorithms, deep learning reconstruction networks and open codes are al...
Source: Journal of X-Ray Science and Technology - Category: Radiology Tags: J Xray Sci Technol Source Type: research
CONCLUSION: Qualitative evaluations on real 3D CT baggage imagery show that our approach is able to generate realistic and plausible TIP which are indiscernible from real CT volumes and the TIP quality scores are consistent with human evaluations. PMID: 32390645 [PubMed - as supplied by publisher]
Source: Journal of X-Ray Science and Technology - Category: Radiology Tags: J Xray Sci Technol Source Type: research
CONCLUSION: CT, which is a widely used X-ray imaging technique and has numerous known side effects, was found to increase the levels of MDA, which is an indicator of oxidative stress, and to decrease the levels of some antioxidants including GSH, SOD, and CAT. PMID: 32397734 [PubMed - as supplied by publisher]
Source: Acta Radiologica - Category: Radiology Authors: Tags: Acta Radiol Source Type: research
ConclusionCervical spinal LD-CT that utilized MBIR enabled radical decrease in radiation dose and provided sufficient image quality for clinical use. This scanning protocol can be a good alternative for protecting patients from exposure to unnecessary radiation, especially when a patient requires multiple CT scans.
Source: European Spine Journal - Category: Orthopaedics Source Type: research
Conclusion  With new evidence emerging every day and with COVID-19 guidance and protocols adapting responsively, the national responses vary widely across the globe. However, Singapore, Taiwan and South Korea have shown that aggressive and proactive testing plays a crucial role in containing the spread of the disease.  We believe AI has great potential for helping doctors quantify and monitor COVID progression from a patient’s chest X-rays – this will help determine treatment pathways faster and thus slow any surges in emergency cases. AI will also play a critical role in expanding screening for...
Source: The Health Care Blog - Category: Consumer Health News Authors: Tags: COVID-19 Health Tech bhargava reddy manoj tld pooja rao preetham srinivas tarun raj Source Type: blogs
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