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282 results on '"Salman, Lina"'

9. Selective Medical Image Encryption and Compression Based on DCT, 3D_Att_ResU-Net and 4D Hyperchaotic Map Schemes.

Author

Shimal, Abeer Fadhil, Hashim, Asaad Noori, Salman, Lina A., and Helal, Baydaa H.

Subjects
TIME complexity, COMPUTER-assisted image analysis (Medicine), DISCRETE cosine transforms, COMPUTATIONAL complexity, BRAIN tumors, IMAGE encryption, BLOCK ciphers
Abstract

Medical image encryption has currently drawn particular attention because of the sensitive nature of medical data, the lack of efficient image encryption employing innovative encryption methods. To enhance the encryption of medical images, a number of encryption approaches were suggested and created. This research proposes a hyperchaotic map as well as a deep learning (DL) based selective medical image encryption technique. Initially, the 3D_Att_ResU-Net segments more sensitive region of interest (ROI) which is the brain tumours. The process continues with a hyperchaotic map for encrypting the ROI of plain medical image. On the other hand, the region of non interest (RONI) is compressed based on discrete cosine transform (DCT). The encrypting of ROI as well as compression of the background could provide the best possible balance between encryption performance and security. The samples for the simulation included a variety of common medical image types as well as a few normal images. The outcomes have been analysed using standard image cryptanalysis techniques. The findings demonstrated that cipher-images had uniformly distributed histogram, high information entropy, low correlation between neighbouring pixels, and good visual quality. The method has a large key space as well as low time complexity, yet it is sensitive to the plain image and the initial key. Interestingly, it has been found that the values of NPCR and UACI are higher than 99.75% and 36. 53%, respectively besides large key space registered as an order of 2339. The entropy of the Region of Interest (ROI) is roughly estimated to be 8, which is significantly represent a better security for the current system. The estimated encryption time required for the ROI of size 8.09 KB is 0.3s and to compress the RONI of size 73.81 is 1.02s while the total time required to encrypt whole image of size 81.9 is 2.4737s making it suitable for real time applications. The results depict that the current presented encryption scheme gives high security with less computational time and complexity. [ABSTRACT FROM AUTHOR]

Published
2024
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17. PR052/#439 Distinct vaginal microbiome ovarian cancer patients – a possible screening and prognostic biomarker?

Author

Neiterman, Ronli Hershkovitch, primary, Salman, Lina, additional, Meisel-Sharon, Shilhav, additional, Noy, Tomer Bar, additional, Carmel, Renat Reens, additional, Hantisteanu, Shay, additional, Zarecki, Raphy, additional, Reshaf, Lea, additional, Hallak, Mordechai, additional, Werner, Haim, additional, and Bruchim, Ilan, additional

Published
2023
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43. Germline BRCA mutation carriers are more likely to undergo cytoreductive surgery for relapsed, platinum sensitive, ovarian cancer

Author

Kadan Yfat, Kotait Mariam, Beiner Mario, Hirte Hal, Josephy Dana, Salman Lina, Bruchim Ilan, Pond Gregory, and Helpman Limor

Subjects
Oncology, Obstetrics and Gynecology
Abstract

BRCA mutations have been associated with improved outcomes in ovarian cancer patients. This study's objective was to compare the secondary cytoreduction surgery (SCS) rates among ovarian cancer patients by BRCA mutation status.The study was retrospective and included platinum sensitive recurrent high grade serous ovarian cancer patients from one Canadian center and two Israeli centers from January 1999 to December 2018. Demographic and genetic data, tumor characteristics, patterns of recurrence and surgical and medical treatments were obtained from electronic charts. Patients were grouped according to BRCA mutation status. Logistic regression analyses were used to explore potential prognostic factors of secondary cytoreduction.147 patients were enrolled, including 97 from Canada and 50 from Israel. Forty-seven patients (32%) had a BRCA mutation, including 39 (26.5%) germline mutations and 8 (5.5%) somatic mutations. Thirty-one patients (21.1%) underwent SCS. The rate of SCS was 33.3% among the germline BRCA mutation carriers and 15.7% among patients without germline BRCA mutation (p = 0.026). Predictors of secondary cytoreduction included germline BRCA mutation (OR = 2.5, p = 0.03), time to recurrence (OR = 1.004 per month, p0.001), absence of lymphatic recurrence (OR = 3.08, p = 0.013), three or fewer lesions at recurrence (OR = 36.74, p0.001) and absence of ascites (OR = 9.1, p = 0.034). After adjusting for the number of lesions at recurrence, no other variable remained a significant predictor.Germline BRCA mutation carriers are more likely to undergo secondary cytoreduction. This may be mediated in part by lower volume disease at recurrence. This observation should be considered when planning surveillance for these patients after first-line treatment.

Published
2022

47. Tumor-reactive antibodies evolve from non-binding and autoreactive precursors

Author

Mazor, Roei D., primary, Nathan, Nachum, additional, Gilboa, Amit, additional, Stoler-Barak, Liat, additional, Moss, Lihee, additional, Solomonov, Inna, additional, Hanuna, Assaf, additional, Divinsky, Yalin, additional, Shmueli, Merav D., additional, Hezroni, Hadas, additional, Zaretsky, Irina, additional, Mor, Michael, additional, Golani, Ofra, additional, Sabah, Gad, additional, Jakobson-Setton, Ariella, additional, Yanichkin, Natalia, additional, Feinmesser, Meora, additional, Tsoref, Daliah, additional, Salman, Lina, additional, Yeoshoua, Effi, additional, Peretz, Eyal, additional, Erlich, Inna, additional, Cohen, Netta Mendelson, additional, Gershoni, Jonathan M., additional, Freund, Natalia, additional, Merbl, Yifat, additional, Yaari, Gur, additional, Eitan, Ram, additional, Sagi, Irit, additional, and Shulman, Ziv, additional

Published
2022
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