Capsule endoscopy: the localization system
| Autor: | Rami Eliakim, Daphna Levi, Doron Fischer, Reuven Schreiber |
|---|---|
| Rok vydání: | 2004 |
| Předmět: |
Gastrointestinal bleeding
medicine.medical_specialty medicine.diagnostic_test business.industry Gastroenterology Capsule Capsules medicine.disease Signal Endoscopy Gastrointestinal Endoscopy law.invention Surgery Ileocecal valve medicine.anatomical_structure Sensor array Computer Terminals Feature (computer vision) Capsule endoscopy law medicine Humans Radiology business Algorithms |
| Zdroj: | Gastrointestinal Endoscopy Clinics of North America. 14:25-31 |
| ISSN: | 1052-5157 |
| DOI: | 10.1016/j.giec.2003.10.020 |
| Popis: | Capsule endoscopy (CE) has become a valuable tool in the armamentarium used to investigate the small bowel. It has been shown to be superior to pushenteroscopy in patients with occult gastrointestinal bleeding for the detection of distal lesions, and to barium follow through in patients with suspected small bowel pathology or Crohn’s disease [1–3]. One of the obstacles with CE was its inability to precisely determine the location of the pathologies found. The Localization Module is an additional feature incorporated into the RAPID Workstation Software of the Given Imaging system (Yoqneam, Israel) to assist the physician in determining the relative location of pathologies found by the M2A capsule. The localization is based on the strength of capsule emitted signal received by the eight sensors (antennas) on the exterior of the abdomen. The output of the localization module is a graphic trajectory of the capsule as it is transported through the GI tract. In addition, the module calculates and presents GI transit times based on the identified and labeled images of the entrance to the stomach, the passage in the pylorus, and the passage through the ileocecal valve. The localization capability of the system is based on the off-line processing of the level of the radio frequency (RF) signals from the sensor array and as such, does not require any additional signals or equipment. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|