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Main parts of ABC gating (Elekta): (A) spirometer, (B) ABC gating monitor.

Main parts of ABC gating (Elekta): (A) spirometer, (B) ABC gating monitor.

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Figure 1 Main parts of ABC gating (Elekta): (A) spirometer, (B) ABC...
Patient Inclusion Criteria for the Study
A Dosimetric Study Comparing Different Radiotherapy Planning Techniques With and Without Deep Inspiratory Breath Hold for Breast Cancer
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  • Dec 2022
Objective: To analyze whether deep inspiratory breath hold (DIBH) would be dosimetrically beneficial irrespective of radiotherapy planning techniques for patients with left breast cancers requiring adjuvant radiotherapy. Methods: Planning CT scans were taken in free-breathing (FB) as well as deep-inspiration breath hold (DIBH) for patients requi...
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Context 1
... were immobilized either by using a vacuum cushion or by breast board, in a supine position with both hands above the head. All patients were trained to execute breath-hold through the mouthpiece attached to the spirometer with a filter kit, which is of single use (shown in Figure 1A). Breath taken through the mouthpiece is monitored by a spirometer, an integral part of the Active Breath Coordinator (ABC) device (Elekta, Stockholm, Sweden), that monitors the airflow in a controlled threshold volume and time to maintain a predefined lung volume and breath-hold time for each patient. ...
Context 2
... taken through the mouthpiece is monitored by a spirometer, an integral part of the Active Breath Coordinator (ABC) device (Elekta, Stockholm, Sweden), that monitors the airflow in a controlled threshold volume and time to maintain a predefined lung volume and breath-hold time for each patient. A screen attached to the gating device monitors the respiratory cycle of the patients ( Figure 1B). ...