Sökning: "Twin-to-Twin Transfusion Syndrome"

Hittade 3 uppsatser innehållade orden Twin-to-Twin Transfusion Syndrome.

1. 1. Image Mosaicking Using Vessel Segmentation for Application During Fetoscopic Surgery

   Master-uppsats, Uppsala universitet/Institutionen för informationsteknologi

   Författare :Axel Grönberg; [2021]
   Nyckelord :;

   Sammanfattning : Twin-to-twin-transfusion syndrome is a condition where there is an imbalance in the shared blood circulation between monochorionic twin fetuses due to certaininter-twin vascular connections (anastomoses) in the placenta which has very high morbidity and mortality rate for both fetuses. Fetoscopic laser occlusive coagulation(FLOC) surgery is commonly used to treat the condition which uses a fetoscope to explore the placenta and a laser to occlude the anastomoses causing the imbalance inblood circulation. LÄS MER

3. 2. Mosaicing of Fetoscopic Acquired Images using SIFT and FAST

   Master-uppsats, KTH/Skolan för datavetenskap och kommunikation (CSC)

   Författare :Simon Fransson; [2017]
   Nyckelord :Mosaicing; Image stitching; Twin-to-Twin Transfusion Syndrome; SIFT; FAST; Homography; RANSAC; fetoscopy;

   Sammanfattning : This is a study exploring how robust one feature descriptors, scale invariant feature transform (SIFT), and one feature detector, feature accelerated segmentation test (FAST), are in terms of handling fetoscopic acquired data when mosaicing. Today’s treatment of severe Twin-to-Twin Transfusion Syndrome at Karolinska University Hospital is fetoscopic guided laser occlusion of chorioangiopagous vessels (FLOC) where intersecting blood vessels causing a transfusion (Anastomoses) in between the fetuses are occluded. LÄS MER

4. 3. Real-time tracking of instruments : Visualizing endoscope position on placental vasculature image

   Uppsats för yrkesexamina på avancerad nivå, KTH/Skolan för datavetenskap och kommunikation (CSC)

   Författare :Johan Huusmann; [2017]
   Nyckelord :Twin to twin transfusion syndrome; real-time tracking of fetoscope;

   Sammanfattning : Twin-to-twin transfusion syndrome (TTTS) is a complication of blood flow among fetuses sharing a single placenta. TTTS is associated with high mortality rates; however there is treatment available which significantly increases the rate of survival. The treatment procedure is although far from perfect. LÄS MER