シンチグラムにおけるCold Lesion検出能の定量的評価

DOI Web Site Web Site 被引用文献3件
  • 近藤 隆司
    宮崎医科大学医学部附属病院中央放射線部
  • 稲津 博
    宮崎医科大学医学部附属病院中央放射線部
  • 杉山 嘉郎
    宮崎医科大学医学部附属病院中央放射線部
  • 佐藤 耕一
    宮崎医科大学医学部附属病院中央放射線部:(現)松本外科医院
  • 宮崎 吉行
    宮崎医科大学医学部附属病院中央放射線部:(現)大分医科大学附属病院放射線部

書誌事項

タイトル別名
  • QUANTITATIVE EVALUATION OF DETECTABILITY OF COLD LESION IN SCINTIGRAM
  • シンチグラム ニ オケル Cold Lesion ケンシュツノウ ノ テイリョ

この論文をさがす

抄録

The relationship of the detectability to the size and depth in water of a cold lesion and the total image counts (information density) of scintigram were assessed by means of the averaged receiver operating characteristic (ROC) curves. As a result, the detectability of a cold lesion depends on the total image counts required to compose a scintigram and the dot size of a micro-dot imager. The more the total image counts and the smaller the dot size, the better the detectability of the cold lesionis. The contrast between the cold lesion (signal) and the background (noise) is improved by effective utilization of the film characteristic curve. A cold lesion of 1.5 cm in diameter can not be detected at a depth of 3 cm, even if the most suitable condition is chosen. However, a cold lesion of 2.3 cm in diameter can be detected perfectly. Similarly, a cold lesion of 9 cm in depth is almost imppossible to detect no matter what the size used in this study. It seems that the depth with meaningful information can be obtained is up to 5 cm. As the total image counts of a scintigram increases, the detectability of a cold lesion increases.

収録刊行物

被引用文献 (3)*注記

もっと見る

キーワード

詳細情報 詳細情報について

問題の指摘

ページトップへ