doctor of medical science, Shinshu University, Japan

Evaluation of hemodynamic imaging findings of hypervascular hepatocellular carcinoma: comparison between dynamic contrast-enhanced magnetic resonance imaging using radial volumetric imaging breath-hold examination with k-space-weighted image contrast reconstruction and dynamic computed tomography during hepatic arteriography
Kurozumi M, Fujinaga Y, Kitou Y, Yamada A, Ohya A, Adachi Y, Tsukahara Y, Nichel MD, Maruyama K, Uehara T, Miyagawa S, Kadoya M
JAPANESE JOURNAL OF RADIOLOGY, 36(4), 295-302, 2018

Uterine cervical adenocarcinoma associated with lobular endocervical glandular hyperplasia: Radiologic- pathologic correlation
Ohya A, Asaka S, Fujinaga Y, Kadoya M
J Obstet Gynecol Res, 44, 312-322, 2018

Epithelioid trophoblastic tumor of the uterus: A case report with radiologic-pathologic correlation.
Ohya A, Higuchi K, Shimojo H, Fujinaga Y, Kadoya M, Shiohara S.
J Obstet Gynaecol Res., 43, 1360-1365, 2017

Gastric gland mucin-specific O-glycan expression decreases with tumor progression from precursor lesions to pancreatic cancer.
Ohya A, Yamanoi K, Shimojo H, Fujii C, Nakayama J.
Cancer Sci., 108, 1897-1902, 2017

Advantages of radial volumetric breath-hold examination (VIBE) with k-space weighted image contrast reconstruction (KWIC) over Cartesian VIBE in liver imaging of volunteers simulating inadequate or no breath-holding ability
Fujinaga Y, Kitou Y, Ohya A, Adachi Y, Tamaru N, Shiobara A, Ueda H, Nickel M, Maruyama K, Kadoya M
Eur Radiol, 26, 2790-2797, 2016

Advantages of radial volumetric breath-hold examination (VIBE) with k-space weighted image contrast reconstruction (KWIC) over Cartesian VIBE in liver imaging of volunteers simulating inadequate or no breath-holding ability
Fujinaga Y, Kitou Y, Ohya A, Adachi Y, Tamaru N, Shiobara A, Ueda H, Nickel MD, Maruyama K, Kadoya M
Eur Radiol, 2015

Radial volumetric imaging breath-hold examination (VIBE) with k-space weighted image contrast (KWIC) for dynamic gadoxetic acid (Gd-EOB-DTPA)-enhanced MRI of the liver: advantages over Cartesian VIBE in the arterial phase
Fujinaga, Y; Ohya, A; Tokoro, H; Yamada, A; Ueda, K; Ueda, H; Kitou, Y; Adachi, Y; Shiobara, A; Tamaru, N; Nickel, MD; Maruyama, K; Kadoya, M
EUROPEAN RADIOLOGY, 24(6), 1290-1299, Jun. 2014

Polypoid endometriosis of the ovary mimicking ovarian carcinoma dissemination: a case report and literature review.
Yamada Y, Miyamoto T, Horiuchi A, Ohya A, Shiozawa T.
J Obstet Gynaecol Res., 40, 1426-30, 2014

Assessment of treatment outcomes based on tumor marker trends in patients with recurrent hepatocellular carcinoma undergoing trans-catheter arterial chemo-embolization.
Arai T, Kobayashi A, Ohya A, Takahashi M, Yokoyama T, Shimizu A, Motoyama H, Furusawa N, Notake T, Kitagawa N, Sakai H, Imamura H, Kadoya M, Miyagawa S.
Int J Clin Oncol., 19, 871-879, 2014

Lymphocyte recruitment via high endothelial venules in lymphoid stroma of Warthin’s tumour.
Ohya A, Kobayashi M,Sakai Y, Kawashima H, Kageyama S, Nakayama J
PATHOLOGY, 45, 150–154, 2013

Periductal induction of high endothelial venule-like vessels in type 1 autoimmune pancreatitis.
Maruyama M, Kobayashi M, Sakai Y, Hiraoka N, Ohya A, Kageyama S, Tanaka E, Nakayama J, Morohoshi T
Pancreas, 42(1), 53-59, 2013

Placental Mesenchymal Dysplasia: Chronological Observation of Placental Images during Gestation and Review of the Literature.
Ohira S, Ookubo N, Tanaka K, Takatsu A, Kobara H, Kikuchi N, Ohya A, Kanai M, Shiozawa T
Gynecol Obstet Invest, 75(4), 217-223, 2013

Effect of hepatobiliary uptake of Gd-EOB-DTPA on the hepatic venous phase of dynamicmagnetic resonance imaging on a 3.0-T apparatus: comparison between Gd-EOB-DTPA and Gd-DTPA.
Fujinaga Y, Ohya A, Matsushita T, Kurozumi M, Ueda K, Kitou Y, Ueda H, Kadoya M
Jpn J Radiol, 29(10), 695-700, 2011

MR diagnosis of SCC arising within ovarian cystic teratomas: analysis of mural nodule characteristics
Takuya Fukuzawa, Ayumi Ohya, Mika Tanaka, Marika Shimizu, Kentaro Kobayashi, Tomohito Matsushita, Tomofumi Watanabe, Hisanori Kobara, Yasunari Fujinaga
Abdom Radiol, 49(4), 1264-1274, Refereed
Corresponding

Signal intensity of the pancreas on magnetic resonance imaging: Prediction of postoperative pancreatic fistula after a distal pancreatectomy using a triple-row stapler
Pancreatology, 15(4), 380-386, 2015