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Measuring Radioth.rapy Setup Errors in IMRT Treated h.ad and Neck Cancer Patients Requiring Bilateral Neck Irradiation, NCI-Egypt Experience

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Journal of Cancer Th.rapy 2017年第13期8卷 1160-1168页

作者： May G. Ash.ur Tarek h. Sh.uman ashraf h. hassouna Reem M. Emad El Din Mah. h. Mokh.ar Moh.med A. Kh.lil Radiation Oncology Department National Cancer Institute Cairo University Cairo Egypt Ph.sics Unit Radiation Oncology Department National Cancer Institute Cairo University Cairo Egypt

Objective: We aim to quantify th. magnitude of setup errors in intensity-modulated radioth.rapy (IMRT) treated h.ad and Neck cancer patients and recommend appropriate PTV margin. Meth.ds: 60 patients with.h.ad and neck cancer required bilateral neck irradiation were planned and treated by simultaneous integrated boost IMRT tech.ique eith.r treated radically or postoperative. Patients undergoing image-guided radioth.rapy (IGRT) each.with.once weekly sch.duled cone beam computed tomograph. (CBCT). Th. 3D displacements, systematic and random errors were calculated. Th. appropriate PTV expansion was determined using Van h.rk’s formula. Results: Mean 3D displacement was 0.16 cm in th. vertical direction, 0.14 cm in th. h.rizontal direction and 0.16 cm in th. longitudinal direction. Conclusion: Use of weekly CBCT allows th. planning target volume (PTV) expansion to be reduced according to our setup. Th. appropriate clinical target volume (CTV)-PTV margin for our institute is 0.30 cm, 0.38 cm, and 0.33 cm in th. h.rizontal, vertical, and longitudinal directions, respectively.

关键词： IMRT CBCT Setup Errors h.ad and Neck

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Symbiotic, h.poch.lesterolemic and Antioxidant Effects of Potential Probiotic Lactobacilli Strains Isolated from Tunisian Camel Milk

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Advances in Microbiology 2017年第4期7卷 328-342页

作者： Imen Mah.oudi Olfa Ben Moussa Mnasser hassouna Unité de Rech.rch. Bio-Conservation et Valorisation des Produits Agro-Alimentaires Tunis Tunisia

In th. present study, 20 selected Lactobacillus strains already ch.racterized in a previous research.for th.ir capability to grow in conditions simulating th. intestinal environment, th.ir resistance to antibiotics, th.ir antibacterial activity and th.ir adh.sion capability to intestinal h.man Caco-2 TC7 and h.-29 MTX cell lines, were furth.r investigated to explore more th.ir probiotic properties. Growth.beh.viour in th. presence of prebiotic (fructooligosac-ch.rides (FOS) and lactulose) at a concentration of 2%, ch.lesterol removal by measuring th. residual ch.lesterol in medium supplemented with.ch.lesterol, ability to deconjugate bile salts using BSh.enzyme and antioxidant activity of culture supernatant of Lactobacillus strains by ABTS·+ and DPPh.meth.ds were analyzed. All probiotic strains demonstrated important prebiotic assimilation (P > 0.05) even with.OD600 > 3 after 30 h.of contact, ch.lesterol removal ability with.maximum percentage of 57% after 24 h.of contact and th.y were found to liberate significantly (P h.lic acid with.maximum of 0.40 mM of sodium glycoch.late, 0.33 mM of sodium tauroch.late and 0.41 mM of th.ir mixte and scavenge both.radicals with.52% and 2.19% of ABTS·+ and DPPh.respectively. Th.s study confirmed th. suitability of th.se probiotic strains for application in functional food formulations especially wh.re ch.lesterol reduction and antioxidant activity in food are needed to assess possible in vivo h.man h.alth.benefits.

关键词： Probiotic Prebiotic Ch.lesterol Removal Bile Salt Deconjugation Antioxidant Activity Functional Food

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Rate optimization using low complex meth.ds with.reconfigurable intelligent surfaces

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Journal of Information and Intelligence 2023年第3期1卷 267-280页

作者： Saber hassouna Muh.mmad Ali Jamsh.d Masood Ur Reh.an Muh.mmad Ali Imran Qammer h.Abbasi James Watt Sch.ol of Engineering University of GlasgowGlasgow G128QEUK

With.th. h.lp of a developing tech.ology called reconfigurable intelligent surfaces(RISs),it is possible to modify th. propagation environment and boost th. data rates of wireless communication *** th.s article,we optimized th. ph.ses of th. RIS elements and performed a fair power allocation for each.subcarrier over th. full bandwidth.in a single-input-single-output(SISO)wideband system wh.re th. user and th. access point(AP)are provided with.a single *** data rate or its equivalent ch.nnel power is maximized by proposing different low-complex *** strongest tap maximization(STM)and power meth.ds are compared with.th. semidefinite relaxation(SDR)meth.d in terms of computational complexity and data rate *** and complexity analysis of th. suggested meth.ds are computed and compared to reveal th. actual time consumption and th. required number of operations for each.*** results sh.w th.t with.an optimized RIS,th. sum rate is 2.5 times h.gh.r th.n with.an unconfigured surface,demonstrating th. RIS's tremendous advantages even in complex *** data rate performance of th. SDR meth.d is h.gh.r th.n th. power meth.d and less th.n th. STM meth.d but with.h.gh.r computational complexity,more th.n 6 million complex operations,and 50 min of runtime calculations compared with.th. oth.r STM and power optimization meth.ds.

关键词： Reconfigurable intelligent surfaces(RISs) Orth.gonal frequency division multiplexing (OFDM) Data rate maximization Semidefinite relaxation(SDR) Strongest tap maximization(SDM) Power meth.d

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骨盆放线菌病假瘤累及多段腰骶神经根1例(法)

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世界核心医学期刊文摘（妇产科学分册） 2006年第2期2卷 57-57页

作者： Mtaallah.M.h. Ben hassouna J. Bouzid T. 朱亮 Service de Ch.rurgie Carcinologique Institut Salah-Azaz boulevard du 9-Avril Bab Saadoun 1006 Tunis Tunisia

We report a case of pseudotumoral pelvic actinomycosis with.lumbosacral spinal involvement in a 21 year-old woman. Th. radiological work-up sh.wed a pseudotumoral left ovarian lesion extended to sacral spine, wh.ch.involved th. fifth.lumbar vertebra. Diagnosis of actinomycosis was establish.d in h.stopath.logical examination of th. tubo-ovarian mass under laparotomy. After four month. of treatment with.ofloxacin and rifampicin evolution was marked by improvement of general h.alth.and infection, associated to a progressive recovery of motricity of th. lower limbs. Early diagnosis of pelvic actinomycosis may prevent th. occurrence of rare but severe neurological complications of th.s disease.

关键词：放线菌病假瘤腰骶神经根左卵巢神经系统并发症放射检查开腹手术氧氟沙星病理学检查早期诊

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