Promote actions for stakeholders engagement Raise awareness on radiation risks and safe use radia... more Promote actions for stakeholders engagement Raise awareness on radiation risks and safe use radiation in healthcare Develop communication strategy including advocacy tools (electronic, printed, audiovisual) Develop guidance on informed consent and communication of risk to patients Risk communication Develop risk communication tools for patients, family and general public
2006 International Conference on Numerical Simulation of Semiconductor Optoelectronic Devices, 2006
Most approaches to semantics in computational linguistics represent meaning in terms of words or ... more Most approaches to semantics in computational linguistics represent meaning in terms of words or abstract symbols. Grounded-language research bases the meaning of natural language on perception and/or action in the (real or virtual) world. Machine learning has become the most effective approach to constructing natural-language systems; however, current methods require a great deal of laboriously annotated training data. Ideally, a computer would be able to acquire language like a child, by being exposed to language in the context of a relevant but ambiguous environment, thereby grounding its learning in perception and action. We will review recent research in grounded language learning and discuss future directions. Raymond J. Mooney is a professor in the Department of Computer Science at the University of Texas at Austin. He received his Ph.D. in 1988 from the University of Illinois at Urbana/Champaign. He is an author of over 150 published research papers, primarily in the areas o...
Aim: As a follow-up to the international survey conducted in April 2020, this survey aims to prov... more Aim: As a follow-up to the international survey conducted in April 2020, this survey aims to provide a situational snapshot of the COVID-19 impact on nuclear medicine services worldwide, one year later. The survey was designed to determine the impact of the pandemic at two specific time-points: June and October 2020 and compare them to the previously collected data.Materials and Methods: A web-based questionnaire, in the same format as the April 2020 survey was disseminated to nuclear medicine facilities worldwide. Survey data was collected using a secure software platform hosted by the International Atomic Energy Agency (IAEA); it was made available for 6 weeks, from November 23 to December 31, 2020.Results: From 505 replies from 96 countries, data was extracted from 355 questionnaires (of which 338 were fully completed). The responses came from centres evenly distributed in different regions of the world and with different income status. Regional differences and challenges across ...
European Journal of Nuclear Medicine and Molecular Imaging
Aim As a follow-up to the international survey conducted by the International Atomic Energy Agenc... more Aim As a follow-up to the international survey conducted by the International Atomic Energy Agency (IAEA) in April 2020, this survey aims to provide a situational snapshot of the COVID-19 impact on nuclear medicine services worldwide, 1 year later. The survey was designed to determine the impact of the pandemic at two specific time points: June and October 2020, and compare them to the previously collected data. Materials and methods A web-based questionnaire, in the same format as the April 2020 survey was disseminated to nuclear medicine facilities worldwide. Survey data was collected using a secure software platform hosted by the IAEA; it was made available for 6 weeks, from November 23 to December 31, 2020. Results From 505 replies received from 96 countries, data was extracted from 355 questionnaires (of which 338 were fully completed). The responses came from centres across varying regions of the world and with heterogeneous income distributions. Regional differences and chall...
The emerging challenges in female health are especially relevant in low-income and middle-income ... more The emerging challenges in female health are especially relevant in low-income and middle-income countries, where insufficient human and logistical resources limit access to proper healthcare. These challenges are related to disease spectrum, human resources, and socioeconomic, sociocultural, infrastructural, and academic disparities [1,2]. Access to adequate healthcare is even more difficult in rural versus urban areas; for many sub-Saharan countries, greater than 80% of the population is rural. According to WHO, two-thirds of the world population lack access to any diagnostic imaging; thus, 3.5-4.7 billion individuals are denied even basic diagnostic imaging [radiography or ultrasound (US)] [3]. This is an open-access article distributed under the terms of the Creative Commons Attribution-Non Commercial-No Derivatives License 4.0 (CCBY-NC-ND), where it is permissible to download and share the work provided it is properly cited. The work cannot be changed in any way or used commercially without permission from the journal.
Journal of the American College of Radiology, 2015
Global health is an area for study, research, and practice that places a priority on improving he... more Global health is an area for study, research, and practice that places a priority on improving health and achieving equity in health for all people worldwide. Global health emphasizes transnational health issues, determinants, and solutions;involvesmanydisciplines within and beyond the health sciences and promotes interdisciplinary collaboration; and is a synthesis of population-based prevention with individual
Cemented revision with impaction grafting shows encouraging early clinical results; postoperative... more Cemented revision with impaction grafting shows encouraging early clinical results; postoperative biopsy specimens taken from the proximal femur in humans have demonstrated viable trabecular and cortical bone. Human radiographic studies also illustrate density changes within the proximal femur, consistent with remodeling of bone-graft. In an animal experiment, bone incorporation was shown in the proximal femur, but graft lysis was reported around the distal portion of the implant. We report on a patient who sustained a traumatic femoral fracture at the level of the tip of the femoral component 27 months after revision with impaction grafting and a collarless polished taper stem. At the time of open reduction and internal fixation of tile fracture, we obtained circumferential biopsy specimens from the fracture site. Three distinct zones could be identified histologically: i) an inner zone consisting of bone-cement, fibrous tissue, and partially necrotic trabeculae with evidence of bone remodeling; ii) a middle zone consisting of viable trabecular bone and probable neocortex formation with fewer particles of bone-cement; and iii) an outer zone with viable cortex. Fibrous tissue was present around some of the incorporating bone-graft fragments, but no continuous fibrous membrane was present. Cement particles were identified, but no polyethylene debris was found by light microscopy. Biopsy specimens from the distal aspect of the prosthesis may not reflect changes seen proximally, but based on the available tissue, this case illustrated histological evidence of bone-graft remodeling after impaction grafting. These results are consistent with our expectations based on radiographic findings and clinical results. Key words: bone cement, bone remodeling, bone transplantation, femur/ pathology, hip prosthesis. Cemented fixation in combination with tight packing of morcellized cancellous bone-graft in acetabular revisions was first reported by Slooff et al. [1],
... Particular discomfort regarding certain dissections, such as the pelvic region, are acknowled... more ... Particular discomfort regarding certain dissections, such as the pelvic region, are acknowledged. Even though students note growing immunity to the dissection experience, such comments reflect insight into professionalism and defense systems. ...
The aim of this study was to evaluate the results of complex hip revision using a cemented, colla... more The aim of this study was to evaluate the results of complex hip revision using a cemented, collarless and polished femoral stem design (CPT, Zimmer, Warsaw, In.) within a tightly impacted morselized allograft. We have now been using the impaction grafting technique in combination with the CPT stem (Zimmer) for 10 years in complex cases of severe bone loss. In this study we have elected to report only those patients who have been revised at least once before revision using the impaction grafting technique. All the patients in the study group have a minimum follow-up of 5 years after the impaction grafting revision. In total, 43 consecutive hips in 40 patients, 22 men and 18 women, with a follow-up time of between 5 and 7 years are included in the study. The complications related to the revised hip consist of three early dislocations managed by closed reduction. Two patients suffered from periprosthetic fracture, both managed with plate osteosynthesis. Two cementless sockets were revised due to aseptic socket loosening. The Endoklinik rating of preoperative bone loss for the revised hips was 2 in 13 hips, 3 in 23 hips, and 4 in 7 hips. During the first year 29 stems subsided 2-4 mm within the cement mantle. In 8 cases, a subsidence of 5-9 mm was measured. The subsidence was nonprogressive, and no subsidence occurred after the 1st year. The Charnley, D'Aubigne, Postel scoring (maximum 6 points) for pain improved from 2.2 points preoperatively to 4.4 postoperatively, function from 2.3 to 4.3, and movement from 2.3 to 4.1. In conclusion, the concept of impaction grafting in THR revision in our study has so far proven to be successful with good clinical results at 5 years despite the relatively high early subsidence of the femoral component.
Journal of the American College of Radiology, 2016
Radiology in low-and middle-income (developing) countries continues to make progress. Research an... more Radiology in low-and middle-income (developing) countries continues to make progress. Research and international outreach projects presented at the 2015 annual RAD-AID conference emphasize important global themes, including (1) recent slowing of emerging market growth that threatens to constrain the advance of radiology, (2) increasing global noncommunicable diseases (such as cancer and cardiovascular disease) needing radiology for detection and management, (3) strategic prioritization for pediatric radiology in global public health initiatives, (4) continuous expansion of global health curricula at radiology residencies and the RAD-AID Chapter Network's participating institutions, and (5) technologic innovation for recently accelerated implementation of PACS in low-resource countries.
Promote actions for stakeholders engagement Raise awareness on radiation risks and safe use radia... more Promote actions for stakeholders engagement Raise awareness on radiation risks and safe use radiation in healthcare Develop communication strategy including advocacy tools (electronic, printed, audiovisual) Develop guidance on informed consent and communication of risk to patients Risk communication Develop risk communication tools for patients, family and general public
2006 International Conference on Numerical Simulation of Semiconductor Optoelectronic Devices, 2006
Most approaches to semantics in computational linguistics represent meaning in terms of words or ... more Most approaches to semantics in computational linguistics represent meaning in terms of words or abstract symbols. Grounded-language research bases the meaning of natural language on perception and/or action in the (real or virtual) world. Machine learning has become the most effective approach to constructing natural-language systems; however, current methods require a great deal of laboriously annotated training data. Ideally, a computer would be able to acquire language like a child, by being exposed to language in the context of a relevant but ambiguous environment, thereby grounding its learning in perception and action. We will review recent research in grounded language learning and discuss future directions. Raymond J. Mooney is a professor in the Department of Computer Science at the University of Texas at Austin. He received his Ph.D. in 1988 from the University of Illinois at Urbana/Champaign. He is an author of over 150 published research papers, primarily in the areas o...
Aim: As a follow-up to the international survey conducted in April 2020, this survey aims to prov... more Aim: As a follow-up to the international survey conducted in April 2020, this survey aims to provide a situational snapshot of the COVID-19 impact on nuclear medicine services worldwide, one year later. The survey was designed to determine the impact of the pandemic at two specific time-points: June and October 2020 and compare them to the previously collected data.Materials and Methods: A web-based questionnaire, in the same format as the April 2020 survey was disseminated to nuclear medicine facilities worldwide. Survey data was collected using a secure software platform hosted by the International Atomic Energy Agency (IAEA); it was made available for 6 weeks, from November 23 to December 31, 2020.Results: From 505 replies from 96 countries, data was extracted from 355 questionnaires (of which 338 were fully completed). The responses came from centres evenly distributed in different regions of the world and with different income status. Regional differences and challenges across ...
European Journal of Nuclear Medicine and Molecular Imaging
Aim As a follow-up to the international survey conducted by the International Atomic Energy Agenc... more Aim As a follow-up to the international survey conducted by the International Atomic Energy Agency (IAEA) in April 2020, this survey aims to provide a situational snapshot of the COVID-19 impact on nuclear medicine services worldwide, 1 year later. The survey was designed to determine the impact of the pandemic at two specific time points: June and October 2020, and compare them to the previously collected data. Materials and methods A web-based questionnaire, in the same format as the April 2020 survey was disseminated to nuclear medicine facilities worldwide. Survey data was collected using a secure software platform hosted by the IAEA; it was made available for 6 weeks, from November 23 to December 31, 2020. Results From 505 replies received from 96 countries, data was extracted from 355 questionnaires (of which 338 were fully completed). The responses came from centres across varying regions of the world and with heterogeneous income distributions. Regional differences and chall...
The emerging challenges in female health are especially relevant in low-income and middle-income ... more The emerging challenges in female health are especially relevant in low-income and middle-income countries, where insufficient human and logistical resources limit access to proper healthcare. These challenges are related to disease spectrum, human resources, and socioeconomic, sociocultural, infrastructural, and academic disparities [1,2]. Access to adequate healthcare is even more difficult in rural versus urban areas; for many sub-Saharan countries, greater than 80% of the population is rural. According to WHO, two-thirds of the world population lack access to any diagnostic imaging; thus, 3.5-4.7 billion individuals are denied even basic diagnostic imaging [radiography or ultrasound (US)] [3]. This is an open-access article distributed under the terms of the Creative Commons Attribution-Non Commercial-No Derivatives License 4.0 (CCBY-NC-ND), where it is permissible to download and share the work provided it is properly cited. The work cannot be changed in any way or used commercially without permission from the journal.
Journal of the American College of Radiology, 2015
Global health is an area for study, research, and practice that places a priority on improving he... more Global health is an area for study, research, and practice that places a priority on improving health and achieving equity in health for all people worldwide. Global health emphasizes transnational health issues, determinants, and solutions;involvesmanydisciplines within and beyond the health sciences and promotes interdisciplinary collaboration; and is a synthesis of population-based prevention with individual
Cemented revision with impaction grafting shows encouraging early clinical results; postoperative... more Cemented revision with impaction grafting shows encouraging early clinical results; postoperative biopsy specimens taken from the proximal femur in humans have demonstrated viable trabecular and cortical bone. Human radiographic studies also illustrate density changes within the proximal femur, consistent with remodeling of bone-graft. In an animal experiment, bone incorporation was shown in the proximal femur, but graft lysis was reported around the distal portion of the implant. We report on a patient who sustained a traumatic femoral fracture at the level of the tip of the femoral component 27 months after revision with impaction grafting and a collarless polished taper stem. At the time of open reduction and internal fixation of tile fracture, we obtained circumferential biopsy specimens from the fracture site. Three distinct zones could be identified histologically: i) an inner zone consisting of bone-cement, fibrous tissue, and partially necrotic trabeculae with evidence of bone remodeling; ii) a middle zone consisting of viable trabecular bone and probable neocortex formation with fewer particles of bone-cement; and iii) an outer zone with viable cortex. Fibrous tissue was present around some of the incorporating bone-graft fragments, but no continuous fibrous membrane was present. Cement particles were identified, but no polyethylene debris was found by light microscopy. Biopsy specimens from the distal aspect of the prosthesis may not reflect changes seen proximally, but based on the available tissue, this case illustrated histological evidence of bone-graft remodeling after impaction grafting. These results are consistent with our expectations based on radiographic findings and clinical results. Key words: bone cement, bone remodeling, bone transplantation, femur/ pathology, hip prosthesis. Cemented fixation in combination with tight packing of morcellized cancellous bone-graft in acetabular revisions was first reported by Slooff et al. [1],
... Particular discomfort regarding certain dissections, such as the pelvic region, are acknowled... more ... Particular discomfort regarding certain dissections, such as the pelvic region, are acknowledged. Even though students note growing immunity to the dissection experience, such comments reflect insight into professionalism and defense systems. ...
The aim of this study was to evaluate the results of complex hip revision using a cemented, colla... more The aim of this study was to evaluate the results of complex hip revision using a cemented, collarless and polished femoral stem design (CPT, Zimmer, Warsaw, In.) within a tightly impacted morselized allograft. We have now been using the impaction grafting technique in combination with the CPT stem (Zimmer) for 10 years in complex cases of severe bone loss. In this study we have elected to report only those patients who have been revised at least once before revision using the impaction grafting technique. All the patients in the study group have a minimum follow-up of 5 years after the impaction grafting revision. In total, 43 consecutive hips in 40 patients, 22 men and 18 women, with a follow-up time of between 5 and 7 years are included in the study. The complications related to the revised hip consist of three early dislocations managed by closed reduction. Two patients suffered from periprosthetic fracture, both managed with plate osteosynthesis. Two cementless sockets were revised due to aseptic socket loosening. The Endoklinik rating of preoperative bone loss for the revised hips was 2 in 13 hips, 3 in 23 hips, and 4 in 7 hips. During the first year 29 stems subsided 2-4 mm within the cement mantle. In 8 cases, a subsidence of 5-9 mm was measured. The subsidence was nonprogressive, and no subsidence occurred after the 1st year. The Charnley, D'Aubigne, Postel scoring (maximum 6 points) for pain improved from 2.2 points preoperatively to 4.4 postoperatively, function from 2.3 to 4.3, and movement from 2.3 to 4.1. In conclusion, the concept of impaction grafting in THR revision in our study has so far proven to be successful with good clinical results at 5 years despite the relatively high early subsidence of the femoral component.
Journal of the American College of Radiology, 2016
Radiology in low-and middle-income (developing) countries continues to make progress. Research an... more Radiology in low-and middle-income (developing) countries continues to make progress. Research and international outreach projects presented at the 2015 annual RAD-AID conference emphasize important global themes, including (1) recent slowing of emerging market growth that threatens to constrain the advance of radiology, (2) increasing global noncommunicable diseases (such as cancer and cardiovascular disease) needing radiology for detection and management, (3) strategic prioritization for pediatric radiology in global public health initiatives, (4) continuous expansion of global health curricula at radiology residencies and the RAD-AID Chapter Network's participating institutions, and (5) technologic innovation for recently accelerated implementation of PACS in low-resource countries.
Uploads
Papers by Miriam Mikhail