Ultrason Taramalarında YOLOv5 Ağı Kullanarak Anatomik Yapıların Tanınması ve Fetüs Hareketlerinin Tespiti

Öz

Tıbbi görüntülerin ve videoların bilgisayar destekli algoritmalar ile analiz edilmesi, hastalıkların teşhis ve tedavisinde önemli faydalar sağlamaktadır. Özellikle son yıllarda, derin öğrenme algoritmalarındaki artan gelişmeler, medikal verilerin işlenmesinde hız, performans ve donanım ihtiyacı gibi konularda sürekli iyileşme sağlamıştır. İleri derece uzmanlık gerektirebilen medikal verilerin inceleme işlemlerinin derin öğrenme algoritmalarıyla yapılması, hekimlerin karar verme aşamasında ikincil bir araç olarak yaygın olarak kullanılmaya başlamıştır. Ultrason (US) videolarında fetüsün hareketlerinin izlenmesi ve anatomik yapıların tanınması bebek sağlığının değerlendirilmesinde önemli bir parametredir. Bu çalışmada, fetüs ultrasonundan fetüs anatomik yapıların tanınması ve hareketlerinin tespiti için YOLOv5 derin öğrenme ağı destekli bir yöntem önerilmektedir. Çalışmada öncelikle, 16-20 haftalık fetüs hareketlerini içeren videolardan bir veriseti oluşturulmuştur. Sonraki aşamada, etiketlenen veriler üzerinde deep-SORT algoritması kullanılarak, fetüse ait kafa, kol, kalp ve gövde kimliklendirilmiş ve takip edilmiştir. Çalışma kapsamında ultrason videolarında yürütülen deneysel çalışmalarda, YOLOv5 algoritması kullanılarak, kafa, gövde, kalp ve kol anatomik yapıları, sırasıyla %95.04, %94.42, %88.31 ve %83.23 F1 skoru ile tanınmıştır. Ayrıca, fetüse ait kafa, kalp ve gövdenin ultrasonik video hareketleri takip edilerek, hareketlerin yörüngeleri ve örüntüleri çıkarılmıştır. Böylece, iki boyutlu düzleme dönüştürülen hareket örüntülerinden fetüs hareketlerinin tespiti sağlanmıştır.

Anahtar Kelimeler

• Fetüs
• Ultrason video
• Derin öğrenme
• Anatomik yapı tanıma
• Fetal hareket tespiti
• YOLOv5
• Deep-SORT algoritması
• Nesne takibi

Fetal Movement Detection and Anatomical Plane Recognition using YOLOv5 Network in Ultrasound Scans

Abstract

Analyzing medical images and videos with computer-aided algorithms provides important benefits in the diagnosis and treatment of diseases. Especially in recent years, the increasing developments in deep learning algorithms have provided continuous improvement in subjects such as speed, performance and hardware need in the processing of medical data. Examination of medical data, which may require advanced expertise, using deep learning algorithms has begun to be widely used as a secondary tool in the decision-making process of physicians. Tracking the movements of the fetus and recognizing its planes in ultrasound (US) videos is an important parameter in evaluating the health of the baby. In this study, a YOLOv5 deep learning network based method is proposed to identify fetal anatomical planes from fetal ultrasound and to detect their movements. First of all, a dataset of videos containing 16-20 weeks of fetal movements is created in the study. In the next step, the fetal head, arm, heart and body are identified and tracking using the deep-SORT algorithm on the labeled data. In the experimental studies conducted on ultrasound videos within the scope of the study, using the YOLOv5 algorithm, head, body, heart and arm are recognized with 95.04%, 94.42%, 88.31% and 83.23% F1-score, respectively. In addition, ultrasonic video movements of the head, heart and body of the fetus are followed and the trajectories and patterns of the movements are extracted. Thus, the detection of fetal movements from the movement patterns transformed into a two-dimensional plane is achieved.

Keywords

• Fetus
• Ultrasound video
• Deep learning
• Anatomical plane recognition
• Fetal movement detection
• YOLOv5
• Deep-SORT algorithm
• Object tracking

Kaynakça

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