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Mishra P, Lewis J, Patankar A, Etmektzoglou A, Svatos M. TU-CD-304-11: Veritas 2.0: A Cloud-Based Tool to Facilitate Research and Innovation. Med Phys 2015. [DOI: 10.1118/1.4925580] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Dhou S, Hurwitz M, Mishra P, Cai W, Rottmann J, Li R, Williams C, Wagar M, Berbeco R, Ionascu D, Lewis JH. 3D fluoroscopic image estimation using patient-specific 4DCBCT-based motion models. Phys Med Biol 2015; 60:3807-24. [PMID: 25905722 DOI: 10.1088/0031-9155/60/9/3807] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
3D fluoroscopic images represent volumetric patient anatomy during treatment with high spatial and temporal resolution. 3D fluoroscopic images estimated using motion models built using 4DCT images, taken days or weeks prior to treatment, do not reliably represent patient anatomy during treatment. In this study we developed and performed initial evaluation of techniques to develop patient-specific motion models from 4D cone-beam CT (4DCBCT) images, taken immediately before treatment, and used these models to estimate 3D fluoroscopic images based on 2D kV projections captured during treatment. We evaluate the accuracy of 3D fluoroscopic images by comparison to ground truth digital and physical phantom images. The performance of 4DCBCT-based and 4DCT-based motion models are compared in simulated clinical situations representing tumor baseline shift or initial patient positioning errors. The results of this study demonstrate the ability for 4DCBCT imaging to generate motion models that can account for changes that cannot be accounted for with 4DCT-based motion models. When simulating tumor baseline shift and patient positioning errors of up to 5 mm, the average tumor localization error and the 95th percentile error in six datasets were 1.20 and 2.2 mm, respectively, for 4DCBCT-based motion models. 4DCT-based motion models applied to the same six datasets resulted in average tumor localization error and the 95th percentile error of 4.18 and 5.4 mm, respectively. Analysis of voxel-wise intensity differences was also conducted for all experiments. In summary, this study demonstrates the feasibility of 4DCBCT-based 3D fluoroscopic image generation in digital and physical phantoms and shows the potential advantage of 4DCBCT-based 3D fluoroscopic image estimation when there are changes in anatomy between the time of 4DCT imaging and the time of treatment delivery.
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Anderson S, Daly G, O'Sullivan C, Subish P, MI MI, Mishra P, Alam K, Poudel A, Khanal S, Norris R, Lee SG, Galbraith K, Kong DCM. Letters to the Editor. JOURNAL OF PHARMACY PRACTICE AND RESEARCH 2015. [DOI: 10.1002/j.2055-2335.2008.tb00400.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Mishra P, Das S, Kar R, Jacob SE, Basu D. Non-haematopoietic malignancies metastasing to the bone marrow: a 5 year record-based descriptive study from a tertiary care centre in South India. Indian J Cancer 2015; 51:30-4. [PMID: 24947093 DOI: 10.4103/0019-509x.134614] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
INTRODUCTION Bone marrow involvement by a non-haematological malignancy gives an opportunity to identify the lodgement, invasion of metastatic cells and the response of the host to the tumor cells. The study was undertaken to assess the involvement of bone marrow with non-haematopoietic malignancies and its significance in establishing primary diagnosis in clinically unsuspected cases. MATERIALS AND METHODS This was a descriptive study which included record review of the departmental archives for the last five years (January 2007 to December 2011). Eighty four cases were studied; which included clinically diagnosed non-haematological malignancy for staging or symptomatic cytopenias/bony lesions (group 1, n = 63), clinically suspected bone marrow metastasis of unknown primary malignancy due to symptomatic cytopenias/bony lesions (group 2, n = 07) and clinically unsuspected malignancy with incidentally detected bone marrow metastasis (group 3, n = 14). RESULTS Bone marrow metastases of solid tumors were identified in 23 cases (27.3%) which included 9 cases from group 1, 14 cases from group 3 and nil in group 2. Of the 14 cases in group 3, in 12 cases a definitive diagnosis could be made by correlating clinicoradiological findings with morphology and immunohistochemistry. The most common tumor in pediatric cases were neuroblastoma and Ewing's sarcoma (40%) and in adult's adenocarcinoma of gastrointestinal tract (30.7%) was the commonest. CONCLUSION Bone marrow metastasis can masquerade as a primary haematopoietic disorder; however its detection has both therapeutic and prognostic significance. Immunohistochemistry is a useful adjunct to morphology in reaching a definitive diagnosis.
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Bernatowicz K, Keall P, Lomax A, Knopf A, Mishra P, Kipritidis J. OC-0408: Impact of prospective respiratory-gated 4DCT acquisition on thoracic image quality: a digital phantom study. Radiother Oncol 2015. [DOI: 10.1016/s0167-8140(15)40404-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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81
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Mahapatra M, Singh PK, Agarwal M, Prabhu M, Mishra P, Seth T, Tyagi S, Patil HP, Saxena R. Epidemiology, Clinico-Haematological Profile and Management of Aplastic Anaemia: AIIMS Experience. THE JOURNAL OF THE ASSOCIATION OF PHYSICIANS OF INDIA 2015; 63:30-35. [PMID: 26529865] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
BACKGROUND The incidence of aplastic anaemia (AA) is higher in Asia than in the West. The precise incidence of AA in India is not known due to lack of epidemiological study. 20-40% of pancytopenic patients in referral centres are of aplastic anaemia. PATIENTS AND METHODS This was an analysis of 1501 patients diagnosed with aplastic anaemia over a period of seven and half years (January 2007- June 2014) attending the Aplastic clinic of department of haematology of All India Institute of Medical Sciences, New Delhi. The details regarding medical history, physical examination, complete blood count, bone marrow aspirate and biopsy, treatment received, were retrieved. Inherited bone marrow failure was screened in patients below 35 years. Treatment response was analysed for various treatment modalities. RESULTS 1501 patients of AA from 20 different states of India were analysed. The bulk of patients were from Uttar Pradesh (28.7%), Bihar (23.6%), Delhi/NCR (20%) and Haryana (7%).The average number of new aplastic anaemia patients enrolled per year 214 (range: 101 -263). The median age at presentation was 25 years (range 2-83),with M;F - 2.3:1. Severity of AA revealed: severe (SAA): 75%, very severe (VSAA): 15%, non-severe (NSAA): 10%. Inherited bone marrow failure syndromes constituted 5% (75 patients) of all aplastic anaemia patients. The most common clinical presentations were pallor (97%), bleeding manifestations (69.6%) and fever (54%). The haematological parameters showed: median level of haemoglobin level: 5.9 gm/dL, WBC: 2700/mm3, ANC: 380/mm3, platelet: 1 0000/mm3. PNH clone was present in 13.5% of patients. 107 patients (7%) were lost to follow up or expired before any treatment was initiated. Only 69 patients (4.5%) received treatment with HLA-matched sibling stem cell transplantation and another 232 (15.5%) patients received ATG plus cyclosporine as immunosuppressive therapy. Seven hundred thirteenpatients (47.5%) received cyclosporine. The overall response to various treatment modalities was: HLA matched sibling haematopoietic stem cell transplant: 75.3%, Anti-thymocyte globulin plus cyclosporine: 58.7%, cyclosporine plus androgen: 45.6%, cyclosporine alone: 32.2%. CONCLUSION Management of AA is a real challenge in developing countries.This is one of the largest case series from a single centre from India. It is our endeavour to reduce the detrimental outcome by increasing awareness among patients and referring physicians to reduce the delay between diagnosis and treatment.
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Rajak H, Singh A, Raghuwanshi K, Kumar R, Dewangan PK, Veerasamy R, Sharma PC, Dixit A, Mishra P. A structural insight into hydroxamic acid based histone deacetylase inhibitors for the presence of anticancer activity. Curr Med Chem 2015; 21:2642-64. [PMID: 23895688 DOI: 10.2174/09298673113209990191] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2012] [Revised: 06/02/2013] [Accepted: 07/23/2013] [Indexed: 11/22/2022]
Abstract
Histone deacetylase inhibitors (HDACi) have been actively explored as anti-cancer agents due to their ability to prevent deacetylation of histones, resulting in uncoiling of chromatin and stimulation of a range of genes associated in the regulation of cell survival, proliferation, differentiation and apoptosis. During the past several years, many HDACi have entered pre-clinical or clinical research as anti-cancer agents with satisfying results. Out of these, more than 8 novel hydroxamic acid based HDACi i.e., belinostat, abexinostat, SB939, resminostat, givinostat, quisinostat, pentobinostat, CUDC-101 are in clinical trials and one of the drug vorinostat (SAHA) has been approved by US FDA for cutaneous T-cell lymphoma (CTCL). It is clear from the plethora of new molecules and the encouraging results from clinical trials that this class of HDAC inhibitors hold a great deal of promise for the treatment of a variety of cancers. In this review, we classified the hydroxamic acid based HDACi on the basis of their structural features into saturated, unsaturated, branched, un-branched and 5, 6-membered cyclic ring linker present between zinc binding group and connecting unit. The present article enlists reports on hydroxamic acid based HDACi designed and developed using concepts of medicinal chemistry, demonstrating that hydroxamate derivatives represent a versatile class of compounds leading to novel imaging and therapeutic agents. This article will also provide a complete insight into various structural modifications required for optimum anticancer activity.
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Wanderer J, Mishra P, Ehrenfeld J. Innovation & market consolidation among electronic health record vendors: an acute need for regulation. J Med Syst 2015; 38:8. [PMID: 24424431 DOI: 10.1007/s10916-014-0008-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Panda U, Mahanty M, Rao VR, Patra S, Mishra P. Hydrodynamics and Water Quality in Chilika Lagoon-A Modelling Approach. ACTA ACUST UNITED AC 2015. [DOI: 10.1016/j.proeng.2015.08.337] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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85
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Mishra P, Lohani H, Zargar RA, Awana VPS, Sekhar BR. Photoemission studies of the near EF spectral weight shifts in FeSe1-xTex superconductor. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2014; 26:425501. [PMID: 25273901 DOI: 10.1088/0953-8984/26/42/425501] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Our valence band photoelectron spectroscopic studies show a temperature dependent spectral weight transfer near the Fermi level in the Fe-based superconductor FeSe1-xTex. Using theoretical band structure calculations we have shown that the weight transfer is due to the temperature induced changes in the Fe(Se,Te)4 tetrahedra. These structural changes lead to shifts in the electron occupancy from the xz/yz and x2-y2 orbitals to the 3z2-r2 orbitals indicating a temperature induced crossover from a metallic state to an Orbital Selective Mott (OSM) Phase. Our study presents an observation of a temperature induced crossover to a low temperature OSM phase in the family of Fe chalcogenides.
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Mishra P, Das RR. Unilateral Caffey disease (infantile cortical hyperostosis). Assoc Med J 2014. [DOI: 10.1136/bmj.g5289] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Hurwitz M, Williams C, Mishra P, Dhou S, Lewis J. Investigation of a Respiratory Motion Model Based on an External Surrogate Signal With a Digital Phantom and Realistic Patient Breathing. Int J Radiat Oncol Biol Phys 2014. [DOI: 10.1016/j.ijrobp.2014.05.2425] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Srivastava A, Mahmood S, Mishra P, Shrotriya V. Correlates of maternal health care utilization in rohilkhand region, India. Ann Med Health Sci Res 2014; 4:417-25. [PMID: 24971219 PMCID: PMC4071744 DOI: 10.4103/2141-9248.133471] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Background: Until date, the importance of maternal health care services in reducing maternal mortality and morbidity has received a significant recognition. Most of the maternal deaths can be prevented if women have access to basic antenatal, natal and postnatal care. However, uptake of maternal health care services is far from universal even in settings where they are extensively available. Aim: The aim of this study is to assess the pattern and identify underlying factors on maternal health care utilization in rural areas of Bareilly. Subjects and Methods: This was a cross-sectional study was conducted during June-December 2011. Six villages were selected by convenience out of 99 villages in Bhojipura Block of Bareilly district, Uttar Pradesh to cover maximum number of women. All currently married women aged between 15 and 49 years who had delivered a child within last 1 year were interviewed by house-to-house survey and comprised the study unit. Their socioeconomic and demographic characteristics, reproductive history and knowledge of specific obstetric complications were taken. The information was gathered on various aspects of maternal-care utilization. In analyzing data, both bivariate and multivariate analyses were employed, using the Microsoft Excel and SPSS for Windows, Version 15.0 (SPSS Inc., Chicago, Illinois,USA). Results: Most (88.6%; 343/387) of pregnancies had registration for antenatal care (ANC). Majority (69.7%; 239/343) of them were registered between 16 and 24 weeks. Only 28.5% (110/343) of women received ANC from a private doctor. Maternal health care service utilization from health personnel was significantly associated with age at marriage ≥18 years, family size ≤3, birth order ≤2, nuclear family and higher socio-economic status. Most of the pregnancy related complications were found among women aged >30 years, with birth order ≥3, having birth interval <24 months, among Muslims, working mothers and among those belonging to joint family. Mother's education and husband's occupation were found to be strong predictors for the utilization of maternal health care using the logistic regression. Conclusion: Utilization of maternal health care services is high. However this can be improved by community based education program.
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Hurwitz M, Williams C, Mishra P, Dhou S, Lewis J. SU-E-J-73: Generation of Volumetric Images with a Respiratory Motion Model Based On An External Surrogate Signal. Med Phys 2014. [DOI: 10.1118/1.4888125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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90
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Dhou S, Hurwitz M, Mishra P, Lewis J. SU-E-J-01: 3D Fluoroscopic Image Estimation From Patient-Specific 4DCBCT-Based Motion Models. Med Phys 2014. [DOI: 10.1118/1.4888052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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91
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Trivedi V, Mishra P. THU0328 The Efficacy of Classical Indian Yoga in the Treatment of Fibromyalgia: A Randomized Controlled Trial. Ann Rheum Dis 2014. [DOI: 10.1136/annrheumdis-2014-eular.1020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Seco J, Koybasi O, Mishra P, James SS, Lewis J. SU-E-CAMPUS-T-02: Can Pre-Treatment 4DCT-Based Motion Margins Estimates Be Trusted for Proton Radiotherapy? Med Phys 2014. [DOI: 10.1118/1.4889009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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93
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Mishra P, Trivedi V. THU0136 Acupuncture in the Treatment of Rheumatoid Arthritis: Results of A Randomized Controlled Trial. Ann Rheum Dis 2014. [DOI: 10.1136/annrheumdis-2014-eular.2199] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Burger A, Buzurovic I, Hurwitz M, Mishra P, Williams C, Seco J, Lewis J. SU-D-18A-04: Quantifying the Ability of Tumor Tracking to Spare Normal Tissue. Med Phys 2014. [DOI: 10.1118/1.4887904] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Mishra P, Lewis J, Etmektzoglou T, Svatos M. TH-C-12A-12: Veritas: An Open Source Tool to Facilitate User Interaction with TrueBeam Developer Mode. Med Phys 2014. [DOI: 10.1118/1.4889648] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Rao S, Siddaraju N, Mishra P, Muthalagan E, Toi PC, Rajesh NG. Significance of lupus erythematosus (LE) cell detection in pericardial fluid in an era of sophisticated techniques. Cytopathology 2014; 26:200-2. [DOI: 10.1111/cyt.12152] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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97
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Tsiamas P, Mishra P, Cifter F, Berbeco RI, Marcus K, Sajo E, Zygmanski P. Low-Z linac targets for low-MV gold nanoparticle radiation therapy. Med Phys 2014; 41:021701. [DOI: 10.1118/1.4859335] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Seco J, Koybasi O, Mishra P, St James S, Lewis J. EP-1640: Can pre-treatment 4DCT-based motion margins estimates be trusted for proton radiotherapy? Radiother Oncol 2014. [DOI: 10.1016/s0167-8140(15)31758-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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99
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Murti Y, Mishra P. Synthesis and evaluation of flavanones as anticancer agents. Indian J Pharm Sci 2014; 76:163-6. [PMID: 24843190 PMCID: PMC4023286] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2013] [Revised: 01/22/2014] [Accepted: 01/27/2014] [Indexed: 11/16/2022] Open
Abstract
A few flavanones were synthesised by cyclisation of corresponding 3-(heteroaryl)-1(2-hydroxyphenyl) prop-2-en-1-one with sodium acetate in alcohol-water and evaluated for activity. Synthesised compounds were assayed for their in vitro anticancer activity against three human cancer cell lines, mammary adenocarcinoma (MCF7), human colon adenocarcinoma (HT29) and human kidney adenocarcinoma (A498) using sulforhodamine B dye. Results indicated that most of the compounds exhibited significant in vitro anticancer potential. Among them, compound having furan ring showed most potent activity against all the tested cell lines.
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Mishra P, Siddaraju N, Manivannan P, Selvi K, Toi PC, Badhe BA. Pre-operative cytodiagnosis of follicular thyroid carcinoma with mandibular metastasis presenting as gingival swelling. Cytopathology 2013; 26:52-3. [PMID: 24330356 DOI: 10.1111/cyt.12120] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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