ニワ　ユキコ   NIWA Yukiko   丹羽　由紀子    所属   医学部 医学科（附属八千代医療センター）    職種   講師
論文種別	原著
言語種別	英語
査読の有無	査読あり
表題	Prognostic Impact of Portal System Invasion in Pancreatic Cancer Based on Image Classification.
掲載誌名	正式名：Pancreas 略　 称：Pancreas ISSNコード：15364828/08853177
掲載区分	国外
巻・号・頁	47(10),pp.1350-1356
著者・共著者	Morimoto Daishi, Yamada Suguru, Murotani Kenta, Sonohara Fuminori, Takami Hideki, Suenaga Masaya, Hayashi Masamichi, Niwa Yukiko, Tashiro Mitsuru, Hattori Norifumi, Iwata Naoki, Kanda Mitsuro, Tanaka Chie, Kobayashi Daisuke, Nakayama Goro, Koike Masahiko, Fujiwara Michitaka, Fujii Tsutomu, Kodera Yasuhiro
発行年月	2018
概要	OBJECTIVES:This study aimed to clarify the correlation between image classification and the pathological degree of portal system invasion (PSI) and to evaluate the prognostic impact of PSI in pancreatic cancer (PC).METHODS:Pancreatic cancer patients with surgical resections (head, n = 244; body and tail, n = 80) were enrolled in this study.RESULTS:Based on imaging findings, portal vein (PV) invasion was classified as type A (absent), B (unilateral narrowing), C (bilateral narrowing), or D (stenosis or obstruction with collaterals). Splenic vein (SPV) invasion was classified as type α (absent), β (stenosis), or γ (obstruction). The pathological grade of venous invasion was classified as grade 0 (no invasion), 1 (tunica adventitia), 2 (tunica media), or 3 (tunica intima). In PV and SPV invasions, image classification and pathological grade showed significant correlation (PV: ρ = 0.696; SPV: ρ = 0.681). Patients with PV invasion deeper than type B exhibited significantly poorer survival than type A (P < 0.0001). In contrast, there was no difference in survival among types α, β, and γ.CONCLUSIONS:Image classification was correlated with the pathological grade of PSI in PC. Although not applicable for SPV invasion, image classification of PV invasion is a robust indicator for PC prognosis.
DOI	10.1097/MPA.0000000000001186
PMID	30286011