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1.
J Med Libr Assoc ; 111(1-2): 551-554, 2023 Apr 21.
Artículo en Inglés | MEDLINE | ID: mdl-37312807

RESUMEN

The Medical Library Association (MLA) has defined 7 domain hubs aligning to different areas of information professional practice. To assess the extent to which content in the Journal of the Medical Library Association (JMLA) is reflective of these domains, we analyzed the magnitude of JMLA articles aligning to each domain hub over the last 10 years. Bibliographic records for 453 articles published in JMLA from 2010 to 2019 were downloaded from Web of Science and screened using Covidence software. Thirteen articles were excluded during the title and abstract review because they failed to meet the inclusion criteria, resulting in 440 articles included in this review. The title and abstract of each article were screened by two reviewers, each of whom assigned the article up to two tags corresponding to MLA domain hubs (i.e., information services, information management, education, professionalism and leadership, innovation and research practice, clinical support, and health equity & global health). These results inform the MLA community about our strengths in health information professional practice as reflected by articles published in JMLA.


Asunto(s)
Bibliotecas Médicas , Asociaciones de Bibliotecas , Humanos , Servicios de Información , Liderazgo , Práctica Profesional
2.
JMIR Diabetes ; 8: e45241, 2023 Mar 29.
Artículo en Inglés | MEDLINE | ID: mdl-36989019

RESUMEN

BACKGROUND: Hybrid closed loop (HCL) insulin pumps adjust insulin delivery based on input from a continuous glucose monitor. Several systems are FDA approved and associated with improved time in range, reduction in hemoglobin A1c, and decreased incidence of hypoglycemia. Major diabetes guidelines differ in their strength of recommendations regarding the use of HCL systems. Overall, limited information about the factors that influence HCL pump clinical decision-making is available, especially among endocrinology clinicians. OBJECTIVE: The study objective is to describe the knowledge and attitudes, network support, and self-efficacy regarding HCL insulin delivery systems among endocrinology clinicians in one Veterans Affairs (VA) Healthcare System in the Midwest. METHODS: Following a descriptive approach, this qualitative study used semistructured interviews and inductive thematic analysis. All endocrinologists, endocrinology fellows, and nurses in the endocrinology and metabolism department at one VA Healthcare System in the Midwest were invited to participate in one-on-one phone interviews. Thematic analysis explored clinician perspectives on HCL insulin pump systems. RESULTS: Participants (n=11) had experience within VA and university health care system endocrinology clinics. From their experiences, 4 themes were identified involving the evaluation and assessment of insulin pump candidates, prescribing challenges, clinical benefits of HCL pumps, and overall clinician confidence. CONCLUSIONS: Findings suggest that clinicians believe HCL systems have significant glycemic benefits but are not appropriate for all patients, especially those with cognitive impairment. HCL pump initiation is a multi-step process requiring an interdisciplinary team of health care clinicians to ensure patient and pump success. Furthermore, HCL systems improve clinician confidence in overall diabetes management.

3.
Pediatr Transplant ; 27(5): e14452, 2023 08.
Artículo en Inglés | MEDLINE | ID: mdl-36518025

RESUMEN

BACKGROUND: Preliminary evidence suggests that non-lung organ donation from resolved, asymptomatic or mildly symptomatic SARS-CoV-2 infected adults may be safe. However, several biological aspects of SARS-CoV-2 infection differ in children and the risk for transmission and outcomes of recipients from pediatric donors with SARS-CoV-2 infection are not well described. METHODS: We report two unvaccinated asymptomatic pediatric non-lung organ deceased donors who tested positive for SARS-CoV-2 RNA by RT-PCR. Donor One unexpectedly had SARS-CoV-2 RNA detected in nasopharyngeal swab and plasma specimens at autopsy despite several negative tests (upper and lower respiratory tract) in the days prior to organ recovery. Donor Two had SARS-CoV- 2 RNA detected in multiple nasopharyngeal swabs but not lower respiratory tract specimens (endotracheal aspirate and bronchoalveolar lavage) during routine surveillance prior to organ recovery and was managed with remdesivir and monoclonal antibodies prior to organ recovery. RESULTS: Two hearts, two livers and four kidneys were successfully transplanted into seven recipients. No donor to recipient transmission of SARS-CoV-2 was observed and graft function of all organs has remained excellent for up to 7 months of followup. CONCLUSIONS: Due to the persistent gap between organ availability and the number of children waiting for transplants, deceased pediatric patients with non-disseminated SARS-CoV-2 infection, isolated to upper and/or lower respiratory tract, should be considered as potential non-lung organ donors.


Asunto(s)
COVID-19 , Trasplante de Órganos , Obtención de Tejidos y Órganos , Adulto , Humanos , Niño , COVID-19/diagnóstico , COVID-19/epidemiología , SARS-CoV-2 , ARN Viral , Donantes de Tejidos
5.
Dev Neurorehabil ; 26(6-7): 389-412, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-38183292

RESUMEN

PURPOSE: Systematically review the effect of exercise and motor interventions on physical activity and motor outcomes of adults with cerebral palsy (CP). METHODS: Eight databases were searched. RESULTS: Twenty-five studies were included, representing 439 adults with CP. Very low to low quality evidence supports that gait training is more effective than standard care or neurodevelopmental treatment for improving gait velocity, quality of gait, and ankle stiffness; balance training is more effective than seated therapeutic activities for improving walking self-confidence and perceived change in balance; whole-body vibration is no more effective than resistance training for improving strength or gait function; and resistance training is no more effective than a person's typical exercise program for improving strength or gait function of adults with CP. Adverse events were reported for balance training, functional training, resistance training, and whole-body vibration. DISCUSSION: Further research is needed that is adequately powered and uses well-controlled study designs.


Asunto(s)
Parálisis Cerebral , Adulto , Humanos , Ejercicio Físico , Terapia por Ejercicio , Caminata
6.
Arch Plast Surg ; 49(6): 729-739, 2022 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-36523916

RESUMEN

Cranioplasties are common procedures in plastic surgery. The use of tissue expansion (TE) in staged cranioplasties is less common. We present two cases of cranioplasties with TE and systematically review literature describing the use of TE in staged cranioplasties and postoperative outcomes. A systematic review was performed by querying multiple databases. Eligible articles include published case series, retrospective reviews, and systematic reviews that described use of TE for staged bony cranioplasty. Data regarding study size, patient demographics, preoperative characteristics, staged procedure characteristics, and postoperative outcomes were collected. Of 755 identified publications, 26 met inclusion criteria. 85 patients underwent a staged cranioplasty with TE. Average defect size was 122 cm 2 , and 30.9% of patients received a previous reconstruction. Average expansion period was 14.2 weeks. The most common soft tissue closures were performed with skin expansion only (75.3%), free/pedicled flap (20.1%), and skin graft (4.7%). The mean postoperative follow-up time was 23.9 months. Overall infection and local complication rates were 3.53 and 9.41%, respectively. The most common complications were cerebrospinal fluid leak (7.1%), hematoma (7.1%), implant exposure (3.5%), and infection (3.5%). Factors associated with higher complication rates include the following: use of alloplastic calvarial implants and defects of congenital etiology ( p = 0.023 and 0.035, respectively). This is the first comprehensive review to describe current practices and outcomes in staged cranioplasty with TE. Adequate soft tissue coverage contributes to successful cranioplasties and TE can play a safe and effective role in selected cases.

7.
Med Ref Serv Q ; 41(3): 248-258, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-35980631

RESUMEN

Health sciences librarians may find it difficult to meet demands for in-person or online synchronous library orientations for various reasons, including short-staffing of librarians, expansion of online programs, and temporary campus closures caused by emergencies, such as the COVID-19 pandemic. The authors discuss the development, implementation, and assessment of an asynchronous online orientation tutorial created for use across various health sciences degree, certificate, and training programs. The tutorial can either replace or supplement synchronous orientations, and the original tutorial can be copied and customized for specific programs.


Asunto(s)
COVID-19 , Bibliotecólogos , Bibliotecas Médicas , Humanos , Pandemias
8.
JMIR Ment Health ; 8(9): e26134, 2021 Sep 15.
Artículo en Inglés | MEDLINE | ID: mdl-34524096

RESUMEN

BACKGROUND: Most American adolescents have access to smartphones, and recent estimates suggest that they spend considerable time on social media compared with other physical and leisure activities. A large body of literature has established that social media use is related to poor mental health, but the complicated relationship between social media and symptoms of depression and anxiety in adolescents is yet to be fully understood. OBJECTIVE: We aim to investigate the relationship between social media use and depression and anxiety symptoms in adolescents by exploring physical activity as a mediator. METHODS: A Qualtrics survey manager recruited adult panel participants between February and March 2019, who indicated that they had adolescent children who spoke English. A total of 4592 adolescent-parent dyads completed the survey that took approximately 39 minutes. The survey entailed completing web-based questionnaires assessing various aspects of social media use, psychological symptoms, and psychosocial factors. The average age of the adolescent participants was 14.62 (SD 1.68; range 12-17) years, and the majority of the adolescent sample was male (2392/4592, 52.09%). RESULTS: Total social media use was associated with more depressive symptoms (multiple R2=0.12; F3,4480=207.1; P<.001), anxiety (multiple R2=0.09; F3,4477=145.6; P<.001), and loneliness (multiple R2=0.06; F3,4512=98.06; P<.001), controlling for age and gender. Physical activity was associated with decreased depression and anxiety symptoms after controlling for other extracurricular activities and social media use (multiple R2=0.24; F5,4290=266.0; P<.001). There were significant differences in symptoms based on gender: female adolescents reported higher rates of social media use and males reported higher rates of depression. Nonbinary and transgender adolescents had higher rates of depression, anxiety, and loneliness than the female and male adolescents in the sample. CONCLUSIONS: In a nationally representative sample of adolescents, more social media use was associated with more severe symptoms of depression, anxiety, and loneliness. Increased physical activity was associated with decreased depression and anxiety symptoms. Physical activity partially mediated the relationship between social media use and depression and anxiety. As this was a cross-sectional study, we cannot conclude that social media use causes internalizing symptoms or that physical activity leads to decreased internalizing symptoms-there may be additional confounding variables producing the relationships we observed. Physical activity may protect against the potentially harmful effect of social media on some adolescents. The effect sizes were small to medium, and the results should be interpreted with caution. Other limitations of this study include our reliance on self-reporting. Future work should examine social media use beyond how much time adolescents spend using social media and instead focus on the nature of social media activity.

9.
World J Stem Cells ; 12(7): 659-675, 2020 Jul 26.
Artículo en Inglés | MEDLINE | ID: mdl-32843920

RESUMEN

BACKGROUND: The impairment of cutaneous wound healing results in chronic, non-healing wounds that are caused by altered wound environment oxygenation, tissue injury, and permissive microbial growth. Current modalities for the treatment of these wounds inadequately address the complex changes involved in chronic wound pathogenesis. Consequently, stem cell therapies have emerged as a potential therapeutic modality to promote cutaneous regeneration through trophic and paracrine activity. AIM: To investigate current literature regarding use of stem cell therapies for the clinical treatment of chronic, non-healing wounds. METHODS: PubMed, EMBASE, Cochrane Library, Web of Science, and Scopus were queried with combinations of the search terms "mesenchymal stem cells," "adult stem cells," "embryonic stem cells," "erythroid precursor cells," "stem cell therapies," and "chronic wounds" in order to find relevant articles published between the years of 2000 and 2019 to review a 20-year experience. Reference lists from the articles were reviewed to identify additional pertinent articles. Retrieved manuscripts (reviews, case reports/series, retrospective/prospective studies, and clinical trials) were evaluated by the authors for their depiction of clinical stem cell therapy use. Data were extracted from the articles using a standardized collection tool. RESULTS: A total of 43 articles describing the use of stem cell therapies for the treatment of chronic wounds were included in this review. While stem cell therapies have been explored in in vitro and in vivo applications in the past, recent efforts are geared towards assessing their clinical role. A review of the literature revealed that adipose-derived stem cells, bone marrow-derived stem cells, bone marrow-derived mononuclear cells, epidermally-derived mesenchymal stem cells, fibroblast stem cells, keratinocyte stem cells, placental mesenchymal stem cells, and umbilical cord mesenchymal stem cells have all been employed in the treatment of chronic wounds of various etiologies. Most recently, embryonic stem cells have emerged as a novel stem cell therapy with the capacity for multifaceted germ cell layer differentiation. With the capacity for self-renewal and differentiation, stem cells can enrich existing cell populations in chronic wounds in order to overcome barriers impeding the progression of wound healing. Further, stem cell therapies can be utilized to augment cell engraftment, signaling and activity, and resultant patient outcomes. CONCLUSION: Assessing observed clinical outcomes, potential for stem cell use, and relevant therapeutic challenges allows wound care stakeholders to make informed decisions regarding optimal treatment approaches for their patients' chronic wounds.

10.
Am J Clin Oncol ; 43(8): 539-544, 2020 08.
Artículo en Inglés | MEDLINE | ID: mdl-32520788

RESUMEN

AIM/OBJECTIVES/BACKGROUND: The goal of therapy with unsealed radiopharmaceutical sources is to provide either cure or significant prolongation of disease-specific survival, and effective reduction and/or prevention of adverse disease-related symptoms or untoward events while minimizing treatment-associated side effects and complications. Radium-223 dichloride (radium-223) is an alpha particle-emitting isotope used for targeted bone therapy. This practice parameter is intended to guide appropriately trained and licensed physicians performing therapy with radium-223. Such therapy requires close cooperation and communication between the physicians who are responsible for the clinical management of the patient and those who administer radiopharmaceutical therapy and manage the attendant side effects. Adherence to this parameter should help to maximize the efficacious use of radium-223, maintain safe conditions, and ensure compliance with applicable regulations. METHODS: This practice parameter was developed according to the process described on the American College of Radiology (ACR) website ("The Process for Developing ACR Practice Parameters and Technical Standards," www.acr.org/ClinicalResources/Practice-Parameters-and-Technical-Standards) by the Committee on Practice Parameters of the ACR Commission on Radiation Oncology in collaboration with the American College of Nuclear Medicine (ACNM), the American Society for Radiation Oncology (ASTRO), and the Society of Nuclear Medicine and Molecular Imaging (SNMMI). All these societies contributed to the development of the practice parameter and approved the final document. RESULTS: This practice parameter addresses the many factors which contribute to appropriate, safe, and effective clinical use of radium-223. Topics addressed include qualifications and responsibilities of personnel, specifications of patient examination and treatment; documentation, radiation safety, quality control/improvement, infection control, and patient education. CONCLUSIONS: This practice parameter is intended as a tool to guide clinical use of radium-223 with the goal of facilitating safe and effective medical care based on current knowledge, available resources and patient needs. The sole purpose of this document is to assist practitioners in achieving this objective.


Asunto(s)
Antineoplásicos/uso terapéutico , Neoplasias Óseas/tratamiento farmacológico , Neoplasias Óseas/radioterapia , Radio (Elemento)/uso terapéutico , Terapia Combinada , Humanos , Radioisótopos/uso terapéutico
12.
J Pharm Pract ; 33(4): 481-490, 2020 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-30636511

RESUMEN

STUDY OBJECTIVE: The objective of this retrospective descriptive study was to quantify clinical activities performed by pharmacists in an advanced pharmacy practice model in the emergency department (ED). METHODS: Data from January 2015 to August 2017 extracted from the department of pharmacy's electronic documentation system and the hospital's electronic medical record were collected and reviewed. Cost savings was derived from the system with adaptation from the previous literature and had been validated by our institution's administration as an acceptable reflection of the impact for activity. RESULTS: The ED pharmacy team participated in a total of 4106 clinical activities that resulted in a cumulative cost avoidance of $5 387 679. Overall, the most common clinical activities that the pharmacy team provided included pharmacotherapy consult (63.3%) and response to medical emergencies (20.7%). A total of 16 219 medication orders placed by ED clinicians were prospectively reviewed and 379 interventions were accepted by ED clinicians. Turnaround times for medication verification in median (interquartile range [IQR]) for 2015, 2016, and 2017 were 2 minutes (1-6 minutes), 3 minutes (1-6 minutes), and 2 minutes (1-5 minutes), respectively. A total of 14 peer-reviewed publications, primarily based on pharmacy practice or use of pharmacotherapy for acute pain, were published by a research program led by the ED pharmacotherapist. CONCLUSION: We created and implemented an advanced practice model tailored to our institution's needs. The model maximized opportunities for pharmacists to provide direct patient care, practice at the top of their license, and encouraged the safe and effective use of medications.


Asunto(s)
Farmacia , Servicio de Urgencia en Hospital , Humanos , Farmacéuticos , Servicio de Farmacia en Hospital , Estudios Retrospectivos
13.
Elife ; 82019 11 26.
Artículo en Inglés | MEDLINE | ID: mdl-31763980

RESUMEN

The human face represents a combined set of highly heritable phenotypes, but knowledge on its genetic architecture remains limited, despite the relevance for various fields. A series of genome-wide association studies on 78 facial shape phenotypes quantified from 3-dimensional facial images of 10,115 Europeans identified 24 genetic loci reaching study-wide suggestive association (p < 5 × 10-8), among which 17 were previously unreported. A follow-up multi-ethnic study in additional 7917 individuals confirmed 10 loci including six unreported ones (padjusted < 2.1 × 10-3). A global map of derived polygenic face scores assembled facial features in major continental groups consistent with anthropological knowledge. Analyses of epigenomic datasets from cranial neural crest cells revealed abundant cis-regulatory activities at the face-associated genetic loci. Luciferase reporter assays in neural crest progenitor cells highlighted enhancer activities of several face-associated DNA variants. These results substantially advance our understanding of the genetic basis underlying human facial variation and provide candidates for future in-vivo functional studies.


Asunto(s)
Cara/anatomía & histología , Sitios Genéticos/genética , Desarrollo Maxilofacial/genética , Fenotipo , Adolescente , Adulto , Puntos Anatómicos de Referencia , Tipificación del Cuerpo/genética , Niño , Preescolar , Femenino , Regulación del Desarrollo de la Expresión Génica/genética , Ontología de Genes , Variación Genética , Estudio de Asociación del Genoma Completo , Genotipo , Humanos , Imagenología Tridimensional , Masculino , Persona de Mediana Edad , Herencia Multifactorial , Polimorfismo de Nucleótido Simple , Adulto Joven
14.
Eur J Nucl Med Mol Imaging ; 46(7): 1518-1523, 2019 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-30850872

RESUMEN

PURPOSE: The usefulness of positron emission tomography/computed tomography (PET/CT) using (18F)-2-fluoropropionyl-labeled PEGylated dimeric arginine-glycine-aspartic acid peptide [PEG3-E{c(RGDyk)}2] (18F-FPPRGD2) in patients with metastatic renal cell cancer (mRCC) has not been evaluated; therefore, we were prompted to conduct this pilot study. METHODS: Seven patients with mRCC were enrolled in this prospective study. 18F-FPPRGD2 and 2-deoxy-2-(18F)fluoro-D-glucose (18F-FDG) PET/CT images were evaluated in a per-lesion analysis. Maximum standardized uptake value (SUVmax) and tumor-to-background ratio (T/B) were measured for all detected lesions, both before and after starting antiangiogenic therapy. RESULTS: Sixty lesions in total were detected in this cohort. SUVmax from 18F-FPPRGD2 PET/CT was lower than that from 18F-FDG PET/CT (4.4 ± 2.9 vs 7.8 ± 5.6, P < 0.001). Both SUVmax and T/B from 18F-FPPRGD2 PET/CT decreased after starting antiangiogenic therapy (SUVmax, 4.2 ± 3.2 vs 2.6 ± 1.4, P = 0.003; T/B, 3.7 ± 3.2 vs 1.5 ± 0.8, P < 0.001). Average changes in SUVmax and T/B were - 29.3 ± 23.6% and - 48.1 ± 28.3%, respectively. CONCLUSIONS: 18F-FPPRGD2 PET/CT may be an useful tool for monitoring early response to antiangiogenic therapy in patients with mRCC. These preliminary results need to be confirmed in larger cohorts.


Asunto(s)
Carcinoma de Células Renales/diagnóstico por imagen , Neoplasias Renales/diagnóstico por imagen , Tomografía Computarizada por Tomografía de Emisión de Positrones , Anciano , Anciano de 80 o más Años , Inhibidores de la Angiogénesis/uso terapéutico , Femenino , Humanos , Masculino , Persona de Mediana Edad , Metástasis de la Neoplasia , Péptidos Cíclicos , Proyectos Piloto , Estudios Prospectivos
16.
PLoS One ; 13(5): e0194768, 2018.
Artículo en Inglés | MEDLINE | ID: mdl-29719004

RESUMEN

A number of publishers and funders, including PLOS, have recently adopted policies requiring researchers to share the data underlying their results and publications. Such policies help increase the reproducibility of the published literature, as well as make a larger body of data available for reuse and re-analysis. In this study, we evaluate the extent to which authors have complied with this policy by analyzing Data Availability Statements from 47,593 papers published in PLOS ONE between March 2014 (when the policy went into effect) and May 2016. Our analysis shows that compliance with the policy has increased, with a significant decline over time in papers that did not include a Data Availability Statement. However, only about 20% of statements indicate that data are deposited in a repository, which the PLOS policy states is the preferred method. More commonly, authors state that their data are in the paper itself or in the supplemental information, though it is unclear whether these data meet the level of sharing required in the PLOS policy. These findings suggest that additional review of Data Availability Statements or more stringent policies may be needed to increase data sharing.


Asunto(s)
Difusión de la Información , Publicaciones , Publicaciones/estadística & datos numéricos
17.
Med Ref Serv Q ; 37(1): 97-104, 2018.
Artículo en Inglés | MEDLINE | ID: mdl-29327993

RESUMEN

The National Institutes of Health (NIH) library instruction program provides training services to staff, clinicians, and researchers across NIH and several Department of Health and Human Services (HHS) operating divisions. The audience, training needs, and training topics are diverse and constantly changing. The NIH library has developed several new services and class topics to meet the needs of its NIH and HHS communities. Context, strategies, and future directions for the NIH library instruction program are described.


Asunto(s)
Capacitación de Usuario de Computador , Almacenamiento y Recuperación de la Información , Bibliotecas Médicas , Bibliometría , National Institutes of Health (U.S.) , Estados Unidos
18.
Int J Radiat Oncol Biol Phys ; 94(5): 978-92, 2016 Apr 01.
Artículo en Inglés | MEDLINE | ID: mdl-27026304

RESUMEN

Recent improvements in toxicity profiles of pediatric oncology patients are attributable, in part, to advances in the field of radiation oncology such as intensity modulated radiation (IMRT) and proton therapy (IMPT). While IMRT and IMPT deliver highly conformal dose to targeted volumes, they commonly demand the addition of 2- or 3-dimensional imaging for precise positioning--a technique known as image guided radiation therapy (IGRT). In this manuscript we address strategies to further minimize exposure risk in children by reducing effective IGRT dose. Portal X rays and cone beam computed tomography (CBCT) are commonly used to verify patient position during IGRT and, because their relative radiation exposure is far less than the radiation absorbed from therapeutic treatment beams, their sometimes significant contribution to cumulative risk can be easily overlooked. Optimizing the conformality of IMRT/IMPT while simultaneously ignoring IGRT dose may result in organs at risk being exposed to a greater proportion of radiation from IGRT than from therapeutic beams. Over a treatment course, cumulative central-axis CBCT effective dose can approach or supersede the amount of radiation absorbed from a single treatment fraction, a theoretical increase of 3% to 5% in mutagenic risk. In select scenarios, this may result in the underprediction of acute and late toxicity risk (such as azoospermia, ovarian dysfunction, or increased lifetime mutagenic risk) in radiation-sensitive organs and patients. Although dependent on variables such as patient age, gender, weight, body habitus, anatomic location, and dose-toxicity thresholds, modifying IGRT use and acquisition parameters such as frequency, imaging modality, beam energy, current, voltage, rotational degree, collimation, field size, reconstruction algorithm, and documentation can reduce exposure, avoid unnecessary toxicity, and achieve doses as low as reasonably achievable, promoting a culture and practice of "gentle IGRT."


Asunto(s)
Tomografía Computarizada de Haz Cónico/métodos , Terapia de Protones/métodos , Exposición a la Radiación/prevención & control , Radioterapia Guiada por Imagen/métodos , Radioterapia de Intensidad Modulada/métodos , Tomografía Computarizada Espiral/métodos , Adolescente , Algoritmos , Niño , Preescolar , Tomografía Computarizada de Haz Cónico/efectos adversos , Craneofaringioma/radioterapia , Femenino , Marcadores Fiduciales , Humanos , Extremidad Inferior , Masculino , Neoplasias/radioterapia , Neoplasias Inducidas por Radiación/prevención & control , Neoplasias Primarias Secundarias/etiología , Neoplasias Primarias Secundarias/prevención & control , Órganos en Riesgo/efectos de la radiación , Neoplasias Hipofisarias/radioterapia , Terapia de Protones/efectos adversos , Traumatismos por Radiación/complicaciones , Traumatismos por Radiación/prevención & control , Dosificación Radioterapéutica , Radioterapia Guiada por Imagen/efectos adversos , Radioterapia de Intensidad Modulada/efectos adversos , Rabdomiosarcoma Embrionario/radioterapia , Riesgo , Dispersión de Radiación
19.
Clin Nucl Med ; 41(7): e323-6, 2016 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-26914563

RESUMEN

PURPOSE: As quantitative F-FDG PET numbers and pooling of results from different PET/CT scanners become more influential in the management of patients, it becomes imperative that we fully interrogate differences between scanners to fully understand the degree of scanner bias on the statistical power of studies. PATIENTS AND METHODS: Participants with body mass index (BMI) greater than 25, scheduled on a time-of-flight (TOF)-capable PET/CT scanner, had a consecutive scan on a non-TOF-capable PET/CT scanner and vice versa. SUVmean in various tissues and SUVmax of malignant lesions were measured from both scans, matched to each subject. Data were analyzed using a mixed-effects model, and statistical significance was determined using equivalence testing, with P < 0.05 being significant. RESULTS: Equivalence was established in all baseline organs, except the cerebellum, matched per patient between scanner types. Mixed-effects method analysis of lesions, repeated between scan types and matched per patient, demonstrated good concordance between scanner types. CONCLUSIONS: Patients could be scanned on either a TOF or non-TOF-capable PET/CT scanner without clinical compromise to quantitative SUV measurements.


Asunto(s)
Neoplasias/diagnóstico por imagen , Tomografía Computarizada por Tomografía de Emisión de Positrones/instrumentación , Adulto , Femenino , Humanos , Masculino , Persona de Mediana Edad , Tomografía Computarizada por Tomografía de Emisión de Positrones/métodos , Tomografía Computarizada por Tomografía de Emisión de Positrones/normas , Estudios Prospectivos , Reproducibilidad de los Resultados
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