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https://www.readbyqxmd.com/read/28091687/analyzing-change-in-nursing-home-information-technology-sophistication-a-2-year-survey
#1
Gregory L Alexander, Richard Madsen, Matthew Newton
Nursing home (NH) health information technology (IT) is becoming more prevalent across the country. Currently, a national sample of NHs is being surveyed for 3 consecutive years to determine trends in NH IT sophistication (e.g., measures of IT capabilities, extent of IT use, IT integration with internal and external stakeholders). IT sophistication is measured in resident care, clinical support, and administrative activities. The current article provides details of the differences in NH IT sophistication reported by administrators completing Year 1 and Year 2 surveys...
January 1, 2017: Journal of Gerontological Nursing
https://www.readbyqxmd.com/read/28067089/metabolomic-applications-in-radiation-biodosimetry-exploring-radiation-effects-through-small-molecules
#2
Evan L Pannkuk, Albert J Fornace, Evagelia C Laiakis
PURPOSE: Exposure of the general population to ionizing radiation has increased in the past decades, primarily due to long distance travel and medical procedures. On the other hand, accidental exposures, nuclear accidents, and elevated threats of terrorism with the potential detonation of a radiological dispersal device or improvised nuclear device in a major city, all have led to increased needs for rapid biodosimetry and assessment of exposure to different radiation qualities and scenarios...
January 9, 2017: International Journal of Radiation Biology
https://www.readbyqxmd.com/read/28066676/image-guided-localization-of-small-lung-nodules-in-video-assisted-thoracic-surgery
#3
REVIEW
Ze-Rui Zhao, Rainbow W H Lau, Peter S Y Yu, Randolph H L Wong, Calvin S H Ng
The advancement of imaging technology has recently facilitated single port minimally-invasive thoracic surgery techniques. Cone-beam computed tomography (CBCT) shows promising results in visualizing the target lesion and its surrounding critical anatomy, with an error of less than 2 mm. The integration of CBCT with the operating room (OR) to form the hybrid OR, provides unparalleled real-time imaging of the patient, which can be used with electromagnetic navigation bronchoscopy to confirm successful navigation and increase procedural accuracy particularly for small peripheral pulmonary targets...
October 2016: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28061962/radiological-medical-device-innovation-approvals-via-the-premarket-approval-pathway-from-2000-to-2015
#4
Comeron W Ghobadi, Emily L Hayman, Joshua H Finkle, Jessica R Walter, Shuai Xu
PURPOSE: The aim of this study was to critically assess the clinical evidence leading to radiologic medical device approvals via the premarket approval pathway from 2000 to 2015. METHODS: This study used the publically available FDA premarket database for radiologic device approvals over the past 15 years (September 1, 2000, to August 31, 2015). Approval characteristics were collected for each device, and statistical analysis was performed on the data for each pivotal trial...
January 2017: Journal of the American College of Radiology: JACR
https://www.readbyqxmd.com/read/28061772/use-of-liquid-biopsies-to-monitor-disease-progression-in-a-sarcoma-patient-a-case-report
#5
Heidi M Namløs, Olga Zaikova, Bodil Bjerkehagen, Daniel Vodák, Eivind Hovig, Ola Myklebost, Kjetil Boye, Leonardo A Meza-Zepeda
BACKGROUND: Many patients experience local recurrence or metastases after receiving potentially curative treatment, and early detection of these events is important for disease control. Recent technological advances make it possible to use blood plasma containing circulating cell-free tumour DNA (ctDNA) as a liquid biopsy. In this case report we show how serial liquid biopsies can be used to monitor the disease course and detect disease recurrence in a sarcoma patient. CASE PRESENTATION: A 55-year-old male presented with a rapidly growing, painful palpable mass in the left groin region, and a biopsy revealed a high-grade malignant spindle cell sarcoma...
January 6, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28060281/utilizing-3d-printing-technology-to-merge-mri-with-histology-a-protocol-for-brain-sectioning
#6
Nicholas J Luciano, Pascal Sati, Govind Nair, Joseph R Guy, Seung-Kwon Ha, Martina Absinta, Wen-Yang Chiang, Emily C Leibovitch, Steven Jacobson, Afonso C Silva, Daniel S Reich
Magnetic resonance imaging (MRI) allows for the delineation between normal and abnormal tissue on a macroscopic scale, sampling an entire tissue volume three-dimensionally. While MRI is an extremely sensitive tool for detecting tissue abnormalities, association of signal changes with an underlying pathological process is usually not straightforward. In the central nervous system, for example, inflammation, demyelination, axonal damage, gliosis, and neuronal death may all induce similar findings on MRI. As such, interpretation of MRI scans depends on the context, and radiological-histopathological correlation is therefore of the utmost importance...
December 6, 2016: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28058657/a-two-ocean-bouillabaisse-science-politics-and-the-central-american-sea-level-canal-controversy
#7
Christine Keiner
As the Panama Canal approached its fiftieth anniversary in the mid-1960s, U.S. officials concerned about the costs of modernization welcomed the technology of peaceful nuclear excavation to create a new waterway at sea level. Biologists seeking a share of the funds slated for radiological-safety studies called attention to another potential effect which they deemed of far greater ecological and evolutionary magnitude - marine species exchange, an obscure environmental issue that required the expertise of underresourced life scientists...
January 5, 2017: Journal of the History of Biology
https://www.readbyqxmd.com/read/28051970/the-effect-of-aging-on-the-ventilatory-response-to-wearing-a-chemical-biological-radiological-and-nuclear-hood-respirator-at-rest-and-during-mild-exercise
#8
Dror Ofir, Yoav Yanir, Mirit Eynan, Ben Aviner, Adi Biram, Michael Mullokandov, Ronen Bar, Yehuda Arieli
BACKGROUND: Structural changes in the human body resulting from aging may affect the response to altered levels of O2 and CO2. An abnormal ventilatory response to a buildup of CO2 in the inspired air due to rebreathing may result in adverse effects, which will impair the individual's ability to function under stress. The purpose of this study was to evaluate the effect of age on the respiratory response to wearing an escape hood at rest and during mild exercise. METHODS: Subjects were seven healthy, young adult males (20-30 years) and seven healthy, middle-aged males (45-65 years)...
January 2017: Military Medicine
https://www.readbyqxmd.com/read/28050717/improving-patient-safety-avoiding-unread-imaging-exams-in-the-national-va-enterprise-electronic-health-record
#9
Sarah Bastawrous, Benjamin Carney
In the current digital and filmless age of radiology, rates of unread radiology exams remain low, however, may still exist in unique environments. Veterans Affairs (VA) health care systems may experience higher rates of unread exams due to coexistence of Veterans Health Information Systems and Technology Architecture (VistA) imaging and commercial picture archiving and communication systems (PACS). The purpose of this patient safety initiative was to identify any unread exams and causes leading to unread exams...
January 3, 2017: Journal of Digital Imaging: the Official Journal of the Society for Computer Applications in Radiology
https://www.readbyqxmd.com/read/28048837/mo-de-202-01-image-guided-focused-ultrasound-surgery-and-therapy
#10
K Farahani
At least three major trends in surgical intervention have emerged over the last decade: a move toward more minimally invasive (or non-invasive) approach to the surgical target; the development of high-precision treatment delivery techniques; and the increasing role of multi-modality intraoperative imaging in support of such procedures. This symposium includes invited presentations on recent advances in each of these areas and the emerging role for medical physics research in the development and translation of high-precision interventional techniques...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28048780/tu-ab-204-00-cdrh-fda-regulatory-processes-and-device-science-activities
#11
Anita Nosratieh
: The responsibilities of the Food and Drug Administration (FDA) have increased since the inception of the Food and Drugs Act in 1906. Medical devices first came under comprehensive regulation with the passage of the 1938 Food, Drug, and Cosmetic Act. In 1971 FDA also took on the responsibility for consumer protection against unnecessary exposure to radiation-emitting devices for home and occupational use. However it was not until 1976, under the Medical Device Regulation Act, that the FDA was responsible for the safety and effectiveness of medical devices...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28048652/tu-d-brb-00-dual-energy-ct-in-radiation-therapy
#12
Zacariah Labby
: Dual-energy CT technology is becoming increasingly available to the medical imaging community. In addition, several models of CT simulators sold for use in radiation therapy departments now feature dual-energy technology. The images provided by dual-energy CT scanners add new information to the radiation treatment planning process; multiple spectral components can be used to separate and identify material composition as well as generate virtual monoenergetic images. In turn, this information could be used to investigate pathologic processes, separate the properties of contrast agents from soft tissues, assess tissue response to therapy, and other applications of therapeutic interest...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28048604/tu-fg-brb-11-design-and-evaluation-of-a-robotic-c-arm-cbct-system-for-image-guided-proton-therapy
#13
C Hua, W Yao, T Kidani, J Farr, K Tomida, S Ozawa, T Nishimura, T Fujusawa, R Shinagawa, T Merchant
PURPOSE: To describe the design and performance of a ceiling-mounted robotic C-arm CBCT system for image-guided proton therapy. METHODS: Uniquely different from traditional C-arm CBCT used in interventional radiology, the imaging system was designed to provide volumetric image guidance for patients treated on a 190-degree proton gantry system and a 6 degree-of-freedom (DOF) robotic patient positioner. The mounting of robotic arms to the ceiling rails, rather than gantry or nozzle, provides the flexibility in imaging locations (isocenter, iso+27cm in X, iso+100cm in Y) in the room and easier upgrade as technology advances...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28048590/we-ab-brb-03-real-time-volumetric-scintillation-dosimetry-for-radiation-therapy
#14
S Beddar
: Despite widespread IMRT treatments at modern radiation therapy clinics, precise dosimetric commissioning of an IMRT system remains a challenge. In the most recent report from the Radiological Physics Center (RPC), nearly 20% of institutions failed an end-to-end test with an anthropomorphic head and neck phantom, a test that has rather lenient dose difference and distance-to-agreement criteria of 7% and 4 mm. The RPC report provides strong evidence that IMRT implementation is prone to error and that improved quality assurance tools are required...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28048545/we-de-207a-04-advances-in-radiological-neuro-endovascular-interventional-imaging
#15
S Rudin
: 1. Parallels in the evolution of x-ray angiographic systems and devices used for minimally invasive endovascular therapy Charles Strother - DSA, invented by Dr. Charles Mistretta at UW-Madison, was the technology which enabled the development of minimally invasive endovascular procedures. As DSA became widely available and the potential benefits for accessing the cerebral vasculature from an endovascular approach began to be apparent, industry began efforts to develop tools for use in these procedures...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28048490/su-g-tep2-04-comprehensive-machine-isocenter-evaluation-with-separation-of-gantry-collimator-and-table-variables
#16
S Hancock, C Clements, D Hyer, E Nixon, E Martin, B Wang, S Jani, M Gossman
PURPOSE: To develop and demonstrate application of a method that characterizes deviation of linac x-ray beams from the centroid of the volumetric radiation isocenter as a function of gantry, collimator, and table variables. METHODS: A set of Winston-Lutz ball-bearing images was used to determine the gantry radiation isocenter as the midrange of deviation values resulting from gantry and collimator rotation. Also determined were displacement of table axis from gantry isocenter and recommended table axis adjustment...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28048459/we-g-204-01-building-a-career-in-academic-medical-physics-the-hardest-and-best-job-you-will-ever-have
#17
J Hazle
While many indicators for academic medical physics are distressing - jobs are tight, demands on clinical time are high (and getting worse) and national funding has been flat for several years (meaning less money in reality) the present is perhaps one of the most exciting times in cancer research history, and medical physicists have an opportunity to make a difference. Many of us predict the impact of medical physics on cancer research over the next decade to be more significant than ever. Why is that? First, medical imaging is used for every cancer patient in developed countries...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28048364/we-fg-207a-01-introduction-to-dedicated-breast-ct-early-studies
#18
S Vedantham
: Mammography-based screening has been a valuable imaging tool for the early detection of non-palpable lesions and has contributed to significant reduction in breast cancer associated mortality. However, the breast imaging community recognizes that mammography is not ideal, and in particular is inferior for women with dense breasts. Also, the 2-D projection of a 3-D organ results in tissue superposition contributing to false-positives. The sensitivity of mammography is breast-density dependent...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28048307/mo-c-brb-02-the-physicists-leadership-role-in-academic-radiology-the-chair-s-perspective
#19
R Arenson
: With the profound changes currently occurring in medicine, the role of the medical physicist cannot stagnate, but must evolve to meet the challenges and opportunities that are presented. Medical physicists must understand these changes and establish themselves not only as relevant but as leaders in this new environment. We must increase our presence in clinical settings such as tumor boards, patient rounds, and the development of new diagnosis, imaging, and treatment techniques. By establishing ourselves as competent scientists, we can and must participate in the development of technologies through research, teaching, and clinical implementation...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28048186/mo-de-202-02-advances-in-image-registration-and-reconstruction-for-image-guided-neurosurgery
#20
J Siewerdsen
At least three major trends in surgical intervention have emerged over the last decade: a move toward more minimally invasive (or non-invasive) approach to the surgical target; the development of high-precision treatment delivery techniques; and the increasing role of multi-modality intraoperative imaging in support of such procedures. This symposium includes invited presentations on recent advances in each of these areas and the emerging role for medical physics research in the development and translation of high-precision interventional techniques...
June 2016: Medical Physics
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