Hedeflenen Lösemik Hücrelerin Sayımı için Görüntü İşleme Tabanlı Ölçüm Sistemi
Date
2019, 2019
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
Abdullah Gül Üniversitesi
Open Access Color
OpenAIRE Downloads
OpenAIRE Views
Abstract
Akut Lenfosit Lösemi (ALL) çocukluk çağında en sık görülen kanser türüdür. Bu kanserin ilerlemesi oldukça hızlıdır, bu yüzden tedavi için zaman çok önemlidir. Hastalar için ilaç tedavisi (kemoterapi), kemik iliği nakli, radyasyon tedavisi ve immünoterapi gibi bazı tedaviler vardır. Bu tedaviler arasında kemoterapi öncelikle tercih edilen bir yöntemdir, ancak sonucu hastadan hastaya farklılık göstermektedir. Hastaların iyileşmesinde ilacın dozajını ayarlamak için kemoterapinin tedaviye etkisini ölçmek çok önemlidir. Kemoterapinin etkisini ölçmek için akım sitometrisi (FC), polimeraz zincir reaksiyonu (PCR) ve mikroskobik inceleme teknikleri kullanılır. Ancak, bu yöntemler zaman alır, pahalıdır ve uzman gerektirir. Bu tezde, sorun görüntü işleme tekniklerine dayanan otomatik bir hücre algılama ve niceleme yöntemi ile ele alınmaktadır. Optik mikroskopi ile elde edilen görüntüler işlenir ve immüno-manyetik boncuklarla yakalanan ALL hücrelerinin ölçümü sağlanır. Geleneksel yöntemlerle karşılaştırıldığında, bu teknik zaman verimli, ucuz ve kullanımı kolaydır. ALL hücrelerinin miktarının yanı sıra, biyosensörlerin sinyal büyütme metodu için projenin ilk bölümünde kullanılan manyetik boncukların belirlenmesi için görüntü işleme algoritmaları da geliştirilmiştir. Görüntüler cep telefonu mikroskopisinden hem mikroskop lamı hem de difraksiyon ızgarası tabanlı biyosensörler için elde edilmiştir. Her iki yöntemde de manyetik boncuk birikimleri gözlenmiş ve geliştirilen algoritmalar cep telefonu mikroskopu görüntülerine uygulanmıştır. Böylece, manyetik boncukların birikimleri bilgisi, görüntü işleme kullanılarak otomatik olarak elde edilmiştir.
Acute Lymphocyte Leukemia (ALL) is the most common type of cancer diagnosed in childhood. The progress of this cancer is quite fast, so time is crucial for the treatment. There are some treatments for patients such as drug therapy (chemotherapy), bone marrow transplantation, radiation treatment, and immunotherapy. Among these treatments chemotherapy is a preferred method, however, its result differs from patient to patient. It is very important to measure the effect of chemotherapy during the treatment in order to adjust the dosage of the drug. Flow cytometry (FC), polymerase chain reaction (PCR) and microscopic examination techniques are used to measure the effect of chemotherapy. However, these methods are time consuming, expensive and require experts. In this thesis, the problem is addressed by an automated cell detection and quantification method based on image processing techniques. The images acquired by optical microscopy were processed and the quantification of ALL cells, which were captured by immunomagnetic beads, was provided. Compared to the conventional methods, this technique is time-efficient, low-cost and easy to use. In addition to the quantification of ALL cells, the image processing algorithms were also developed for the quantification of the magnetic beads that were used in the initial part of the project for signal amplification. The images were acquired from a cell phone microscope for both microscope slide and diffraction grating-based biosensors. In both methods, magnetic bead accumulations were observed. Thus, the accumulation of magnetic beads was detected automatically.
Acute Lymphocyte Leukemia (ALL) is the most common type of cancer diagnosed in childhood. The progress of this cancer is quite fast, so time is crucial for the treatment. There are some treatments for patients such as drug therapy (chemotherapy), bone marrow transplantation, radiation treatment, and immunotherapy. Among these treatments chemotherapy is a preferred method, however, its result differs from patient to patient. It is very important to measure the effect of chemotherapy during the treatment in order to adjust the dosage of the drug. Flow cytometry (FC), polymerase chain reaction (PCR) and microscopic examination techniques are used to measure the effect of chemotherapy. However, these methods are time consuming, expensive and require experts. In this thesis, the problem is addressed by an automated cell detection and quantification method based on image processing techniques. The images acquired by optical microscopy were processed and the quantification of ALL cells, which were captured by immunomagnetic beads, was provided. Compared to the conventional methods, this technique is time-efficient, low-cost and easy to use. In addition to the quantification of ALL cells, the image processing algorithms were also developed for the quantification of the magnetic beads that were used in the initial part of the project for signal amplification. The images were acquired from a cell phone microscope for both microscope slide and diffraction grating-based biosensors. In both methods, magnetic bead accumulations were observed. Thus, the accumulation of magnetic beads was detected automatically.
Description
Keywords
Electrical And Electronics Engineering, Elektrik Ve Elektronik Mühendisliği
Turkish CoHE Thesis Center URL
Fields of Science
Citation
WoS Q
Scopus Q
Source
Volume
Issue
Start Page
End Page
92
Google Scholar™
Sustainable Development Goals
7
AFFORDABLE AND CLEAN ENERGY

14
LIFE BELOW WATER
