X-RAY COMPUTED TOMOGRAPHY APPARATUS AND X-RAY DETECTOR

• Main Authors: NANBU SHUYA, ISO MACHIKO, NAKAYAMA MICHITO, HASHIMOTO ATSUSHI, MIYAMA KOICHI, KANAMARU SHUN, UMEHARA TAKAYA, MATSUDA KEIJI, SAGO TOMOHIDE
• Format: Patent
• Language: English; Japanese
• Published: 04.08.2016
• Subjects: DIAGNOSIS; HUMAN NECESSITIES; HYGIENE; IDENTIFICATION; MEDICAL OR VETERINARY SCIENCE; SURGERY

PROBLEM TO BE SOLVED: To reduce image artifact caused by deterioration in DAS (Data Acquisition System) elements.SOLUTION: An X-ray tube 13 generates X-rays. A plurality of detector elements 51 detect X-rays. A plurality of DAS elements 53 perform signal processing on output signals from the plurality of detector elements 51. A switching circuit 55 is provided between the plurality of detector elements 51 and the plurality of DAS elements 53. A switching control circuit 57 controls the switching circuit 55 to switch the connections between the plurality of detector elements 51 and the plurality of DAS elements 53 for every predetermined view.SELECTED DRAWING: Figure 2 【課題】ＤＡＳ素子の劣化に伴う画像アーチファクトを低減すること。【解決手段】Ｘ線管１３は、Ｘ線を発生する。複数の検出器素子５１は、Ｘ線を検出する。複数のＤＡＳ素子５３は、複数の検出器素子５１からの出力信号を信号処理する。切替回路５５は、複数の検出器素子５１と複数のＤＡＳ素子５３との間に設けられる。切替制御回路５７は、複数の検出器素子５１と複数のＤＡＳ素子５３との間の接続を所定のビュー毎に切替えるように切替回路５５を制御する。【選択図】 図２