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- 저자 : Zanaty, E.A. (검색결과 4 건)
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Comparing U-Net convolutional network with mask R-CNN in Nuclei Segmentation
Zanaty, E.A.,Abdel-Aty, Mahmoud M.,ali, Khalid abdel-wahab International Journal of Computer ScienceNetwork S 2022 International journal of computer science and netw Vol.22 No.3
Deep Learning is used nowadays in Nuclei segmentation. While recent developments in theory and open-source software have made these tools easier to implement, expert knowledge is still required to choose the exemplary model architecture and training setup. We compare two popular segmentation frameworks, U-Net and Mask-RCNN, in the nuclei segmentation task and find that they have different strengths and failures. we compared both models aiming for the best nuclei segmentation performance. Experimental Results of Nuclei Medical Images Segmentation using U-NET algorithm Outperform Mask R-CNN Algorithm.
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Standardized 4-step technique of bladder neck dissection during robot-assisted radical prostatectomy
Mansour Alnazari,Marc Zanaty,Emad Rajih,Assaad El-Hakim,Kevin C. Zorn 대한비뇨의학회 2016 Investigative and Clinical Urology Vol.57 No.-
Bladder neck (BN) dissection is considered one of the most challenging steps during robot-assisted radical prostatectomy. Better understanding of the BN anatomy, coupled with a standardized approach may facilitate dissection while minimizing complications. We describe in this article the 4 anatomic spaces during standardized BN dissection, as well other technical maneuvers of managing difficult scenarios including treatment of a large median lobe or patients with previous transurethral resection of the prostate. The first step involves the proper identification of the BN followed by slow horizontal dissection of the first layer (the dorsal venous complex and perivesicle fat). The second step proceeds with reconfirming the location of the BN followed by midline dissection of the second anatomical layer (the anterior bladder muscle and mucosa) using the tip of the monopolar scissor until the catheter is identified. The deflated catheter is then grasped by the assistant to apply upward traction on the prostate from 2 directions along with downward traction on the posterior bladder wall by the tip of the suction instrument. This triangulation allows easier, and safer visual, layer by layer, dissection of the third BN layer (the posterior bladder mucosa and muscle wall). The forth step is next performed by blunt puncture of the fourth layer (the retrotrigonal fascia) aiming to enter into the previously dissected seminal vesical space. Finally, both vas deferens and seminal vesicles are pulled through the open BN and handed to the assistant for upper traction to initiate Denovillier's dissection and prostate pedicle/neurovascular bundle control.
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In Search for a Common Pathway for Health Issues in Men - the Sign of a Holmesian Deduction
Aoun, Fouad,Chemaly, Anthony Kallas,Albisinni, Simone,Zanaty, Marc,Roumeguere, Thierry Asian Pacific Journal of Cancer Prevention 2016 Asian Pacific journal of cancer prevention Vol.17 No.1
The evidence for the existence of a common pathway for health issues in men is presented in this review. Several epidemiological studies have shown that conditions like cardiovascular diseases (CVD), metabolic syndrome, diabetes, lower urinary tract symptom (LUTS), erectile dysfunction (ED), prostate cancer, hypogonadism, depression and suicide can be associated as risk factors for each other. Thus, the risk of CVD is significantly increased in men with metabolic syndrome, ED, hypogonadism, prostate cancer and/or LUTS. In addition, the above mentioned conditions are more prevalent in atherosclerotic patients. In addition, growing evidence indicates that low androgen levels can cause metabolic syndrome. In addition, obesity, dyslipidaemia and diabetes can further reduce androgen levels potentiating their adverse effect. Low testosterone levels are also associated with a higher incidence of aggressive prostate cancer on biopsy and on definitive pathology, and lower probability of abiraterone response in the metastatic setting. Several recent studies point towards diffuse endothelial dysfunction and dysregulated pro-inflammatory state as the biological link between all these disorders. Our current hypothesis is that oxidative stress caused by these dysfunctions explains the pathogenesis of each of these conditions.
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( Chenchouni Haroun ),( Zanati Kamel ),( Rezougui Abderrahmane ),( Briki Athmane ),( Arar Abdelkrim ) 한국산림과학회 2010 Forest Science And Technology Vol.6 No.2
We monitored emergence dates of adults in order to assess local population density and to determine the life cycle of the Pine Processionary Moth (Thaumetopoea pityocampa Denis & Schif.). A series of 126 pheromone traps were placed randomly on trunks of Aleppo pine (Pinus halepensis) located in the major forests of Batna City (North-eastern Algeria). We harvested daily contents of traps installed at an average height of 1.70±0.30 m, where a total of 19,339 males were captured from July 2008 to August 2008 with an average catch of 153.5±179.4 per trap. Thus, pheromone traps provided an important tool to assess population density and rhythms of adult flight. In addition, different findings are discussed such as main factors influencing adult emergence. This study was based on the use of mating disruption by mass trapping to limit future outbreaks on the one hand, and to provide data on the exact dates of adult emergence to monitor future outbreaks and to use the appropriate control technique on the other hand. Canonical correspondence analysis (CCA) showed that site variables that best explained the data were tree age and average stand height. CCA analysis indicated that altitude was not significant parameter. Factors leading to late adult emergence as well as PPM low densities in some forest stations are discussed.
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