{"created":"2023-05-15T14:43:53.845554+00:00","id":60050,"links":{},"metadata":{"_buckets":{"deposit":"7136adf5-e102-4531-9a80-8d494560cc7f"},"_deposit":{"created_by":1,"id":"60050","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"60050"},"status":"published"},"_oai":{"id":"oai:repo.qst.go.jp:00060050","sets":["10:29"]},"author_link":["597148","597143","597147","597150","597151","597145","597152","597137","597140","597141","597142","597136","597149","597144","597135","597154","597156","597139","597155","597146","597153","597138"],"item_10005_date_7":{"attribute_name":"発表年月日","attribute_value_mlt":[{"subitem_date_issued_datetime":"2003-10-29","subitem_date_issued_type":"Issued"}]},"item_10005_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"ＰＥＴ-ＣＴではＸ線ＣＴデータを用いて吸収補正を行う。通常ＰＥＴの外部線源を用いたtransmission \ndataと比べてＸ線ＣＴデータは空間分解能が高く、ノイズが少なく、吸収補正されたＰＥＴの画質に有利であると考えられる。以上の観点から、われわれはＰＥＴ-ＣＴ画像と従来の外部線源（68Ｇｅ線源）による吸収補正ＰＥＴ画像との画質の比較と、ＲＯＩ値の比較を行った。対象は脳腫瘍、眼窩腫瘍、頭頚部腫瘍、肺癌、食道癌、乳癌、心腫瘍、肝癌、膵臓癌、腎癌、膀胱癌、大腸癌、子宮頚癌、卵巣癌、骨軟部腫瘍当の多岐にわたった腫瘍である。検査にはＦＤＧあるいは11Ｃ-メチオニンが用いられた。68Ｇｅ線源を用いた通常のＰＥＴ検査を施行した直後に別室のＰＥＴ-ＣＴに移動し、続けて検査を施行した。得られた画像を視覚的に比較すると共に、腫瘍部および周辺正常組織にＲＯＩを設定し値を比較した。ＰＥＴ-ＣＴの方がノイズの少ない良好な画像が得られる傾向を認めた。ＲＯＩ値もややＰＥＴ-ＣＴが高く出る傾向を認めたが、臨床上は問題ない程度と判断された。","subitem_description_type":"Abstract"}]},"item_10005_description_6":{"attribute_name":"会議概要（会議名, 開催地, 会期, 主催者等）","attribute_value_mlt":[{"subitem_description":"第43回　日本核医学会総会","subitem_description_type":"Other"}]},"item_access_right":{"attribute_name":"アクセス権","attribute_value_mlt":[{"subitem_access_right":"metadata only access","subitem_access_right_uri":"http://purl.org/coar/access_right/c_14cb"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"吉川, 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