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Leo P. Lawler Susan A. Wood Harpreet S. Pannu Elliot K. Fishman 《Journal of digital imaging》2003,16(3):251-261
The continued revolution in multidetector-row CT (MDCT) scanning increases the quality of lung imaging but at the cost of a greater burden of data for review and interpretation. This article discusses our preliminary experience with prototype software for lung nodule detection and characterization using MDCT data sets. We discuss the potential role of computer-assisted detection (CAD) as applied to the automatic detection of lung nodules. We also review the process of CAD, outline its potential results, and explore how it may fit into existing radiology practice. Finally, we discuss MDCT data-acquisition parameters and how they may affect the performance of CAD. 相似文献
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Juergen Messner Harpreet Chhina Sophia Davidson Jero Abad Anthony Cooper 《Journal of children's orthopaedics》2021,15(2):114
PurposeComparison of two hexapod frame systems in paediatric tibial deformity correction; the Taylor Spatial Frame (TSF) and Orthex Hexapod System.MethodsPaediatric patients with congenital and acquired tibial deformities treated with either TSF (between 2014 and 2016) or Orthex (between 2017 and 2019) frames were included in a retrospective comparative study. Outcome measures were healing index, pin infection rate, regenerate quality and density, software residual rate, deformity correction accuracy, strut exchanges and quality of life (QoL).ResultsThe TSF group had 17 patients (18 frames) and the Orthex group had 21 patients (25 frames). The most common indications for tibial deformity correction were fibular hemimelia (14) and septic or traumatic growth arrest (8). The median time in frame was 230 days (TSF) versus 203 days (Orthex) (p= 0.06). The mean lengthening achieved was 54 mm (TSF) and 51 mm (Orthex) (p = 0.41). The healing index was 41 days/cm (TSF) versus 43 days/cm (Orthex) (p = 0.70). Pin site infections occurred more in the TSF cohort (40%) than in the Orthex cohort (18%) (p < 0.001). The regenerate in the Orthex group showed higher density at three months (p = 0.029) and was more homogenous (p = 0.023) at six months after frame application. Strut exchanges were less frequent with the Orthex system (p < 0.0001). QoL measures were similar in both cohorts (p = 0.92).ConclusionsThis is the first study to compare two hexapod designs in paediatric orthopaedics. The Orthex system showed superiority in regenerate quality and a significant reduction in pin site infection rates. Both systems delivered predictable and accurate limb deformity correction.Level of evidenceIII 相似文献
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Satomi Kawamoto Harpreet K. Pannu David A. Bluemke Elliot K. Fishman 《European journal of nuclear medicine and molecular imaging》1994,21(12):1369-1372
Here in the USA
Nuclear medicine Competitors or collaborators? 相似文献5.
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One hundred volunteer female college teachers were selected from Jalandhar, Punjab, India. General obesity was found in 56.6%, 76.9%, and 76.2%, abdominal obesity in 56.6%, 57.7%, and 81.0%, of 30- to 39-year-old (Group I), 40- to 49-year-old, (Group II) and 50- to 59-year-old (Group III) participants, respectively. A significantly (p ≤ .05) lower mean value of uncontrolled eating domain was observed in the participants belonging to Group I in comparison to Groups II and III. The cognitive restraint was less in Group III (13.71%), followed by Group II (14.04%) and I (13.71%). The mean values of emotional eating domain revealed not much difference in Group I (12.19%), Group II (12.65%), and Group III (12.00%). Adiposity showed a significant (p ≤ .10, .05) relationship with age and eating behaviors. In conclusion, lesser cognitive dietary restraint and emotional eating were the variables associated with adiposity in the participants. 相似文献
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Sorafenib, but not sunitinib, affects function of dendritic cells and induction of primary immune responses 总被引:2,自引:0,他引:2
Hipp MM Hilf N Walter S Werth D Brauer KM Radsak MP Weinschenk T Singh-Jasuja H Brossart P 《Blood》2008,111(12):5610-5620
The tyrosine kinase inhibitors sorafenib and sunitinib are approved for the treatment of patients with malignant diseases. To analyze the possible use of these compounds in combination with immunotherapeutic approaches, we analyzed the effects of both inhibitors on the immunostimulatory capacity of human dendritic cells (DCs) and the induction of primary immune responses in vivo. Sorafenib, but not sunitinib, inhibits function of DCs, characterized by reduced secretion of cytokines and expression of CD1a, major histocompatibility complex, and costimulatory molecules in response to TLR ligands as well as by their impaired ability to migrate and stimulate T-cell responses. These inhibitory effects are mediated by inhibition of PI3 and MAP kinases and NFB signaling. In contrast, sorafenib had no influence on the phenotype and proliferation of T cells. To analyze the effects of both TKIs on cytotoxic T-cell induction in vivo, C57BL/6 mice were pretreated with sorafenib or sunitinib and immunized with OVA257-264 peptide. Sorafenib, but not sunitinib, application significantly reduced the induction of antigen-specific T cells. Numbers of regulatory T cells were reduced in peripheral blood mononuclear cells from mice treated with sunitinib. These results indicate that sunitinib, but not sorafenib, is suitable for combination with immunotherapeutic approaches for treatment of cancer patients. 相似文献
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Fabian Brunk Andreas Moritz Annika Nelde Tatjana Bilich Nicolas Casadei Sabine A. K. Fraschka Jonas S. Heitmann Sebastian Hörber Andreas Peter Hans-Georg Rammensee Harpreet Singh Juliane Walz Dominik Maurer Claudia Wagner 《European journal of immunology》2021,51(11):2651-2664
Both B cells and T cells are involved in an effective immune response to SARS-CoV-2, the disease-causing virus of COVID-19. While B cells—with the indispensable help of CD4+ T cells—are essential to generate neutralizing antibodies, T cells on their own have been recognized as another major player in effective anti-SARS-CoV-2 immunity. In this report, we provide insights into the characteristics of individual HLA-A*02:01- and HLA-A*24:02-restricted SARS-CoV-2-reactive TCRs, isolated from convalescent COVID-19 patients. We observed that SARS-CoV-2-reactive T-cell populations were clearly detectable in convalescent samples and that TCRs isolated from these T cell clones were highly functional upon ectopic re-expression. The SARS-CoV-2-reactive TCRs described in this report mediated potent TCR signaling in reporter assays with low nanomolar EC50 values. We further demonstrate that these SARS-CoV-2-reactive TCRs conferred powerful T-cell effector function to primary CD8+ T cells as evident by a robust anti-SARS-CoV-2 IFN-γ response and in vitro cytotoxicity. We also provide an example of a long-lasting anti-SARS-CoV-2 memory response by reisolation of one of the retrieved TCRs 5 months after initial sampling. Taken together, these findings contribute to a better understanding of anti-SARS-CoV-2 T-cell immunity and may contribute to paving the way toward immunotherapeutics approaches targeting SARS-CoV-2. 相似文献
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