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Nakazawa Y, Okada M, Hyodo T, Tago K, Shibutani K, Mizuno M, Yoshikawa H, Abe H, Higaki T, Okamura Y, Takayama T. Comparison between CT volumetry, technetium 99m galactosyl-serum-albumin scintigraphy, and gadoxetic-acid-enhanced MRI to estimate the liver fibrosis stage in preoperative patients. Eur Radiol 2024; 34:2212-2222. [PMID: 37673964 DOI: 10.1007/s00330-023-10219-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Revised: 06/24/2023] [Accepted: 07/16/2023] [Indexed: 09/08/2023]
Abstract
OBJECTIVES To compare the efficacy of computed tomography volumetry (CTV), technetium99m galactosyl-serum-albumin (99mTc-GSA) scintigraphy, and gadolinium-ethoxybenzyl-diethylenetriamine-pentaacetic-acid-enhanced MRI (EOB-MRI) in estimating the liver fibrosis (LF) stage in patients undergoing liver resection. METHODS This retrospective study included 91 consecutive patients who had undergone preoperative dynamic CT and 99mTc-GSA scintigraphy. EOB-MRI was performed in 76 patients. CTV was used to measure the total liver volume (TLV), spleen volume (SV), normalised to the body surface area (BSA), and liver-to-spleen volume ratio (TLV/SV). 99mTc-GSA scintigraphy provided LHL15, HH15, and GSA indices. The liver-to-spleen ratio (LSR) was calculated in the hepatobiliary phase of EOB-MRI. Hyaluronic acid and type 4 collagen levels were measured in 65 patients. Logistic regression and receiver operating characteristic (ROC) analyses were performed to identify useful parameters for estimating the LF stage and laboratory data. RESULTS According to the multivariable logistic regression analysis, SV/BSA (odds ratio [OR], 1.01; 95% confidence interval [CI], 1.003-1.02; p = 0.011), LSR (OR, 0.06; 95%CI, 0.004-0.70; p = 0.026), and hyaluronic acid (OR, 1.01; 95%CI, 1.001-1.02; p = 0.024) were independent variables for severe LF (F3-4). Combined SV/BSA, LSR, and hyaluronic acid correctly estimated severe LF, with an AUC of 0.91, which was significantly larger than the AUCs of the GSA index (AUC = 0.84), SV/BSA (AUC = 0.83), or LSR (AUC = 0.75) alone. CONCLUSIONS Combined CTV, EOB-MRI, and hyaluronic acid analyses improved the estimation accuracy of severe LF compared to CTV, EOB-MRI, or 99mTc-GSA scintigraphy individually. CLINICAL RELEVANCE STATEMENT The combined analysis of spleen volume on CT volumetry, liver-to-spleen ratio on gadolinium-ethoxybenzyl-diethylenetriamine-pentaacetic-acid-enhanced MRI, and hyaluronic acid can identify severe liver fibrosis associated with a high risk of liver failure after hepatectomy and recurrence in patients with hepatocellular carcinoma. KEY POINTS • Spleen volume of CT volumetry normalised to the body surface area, liver-to-spleen ratio of EOB-MRI, and hyaluronic acid were independent variables for liver fibrosis. • CT volumetry and EOB-MRI enable the detection of severe liver fibrosis, which may correlate with post-hepatectomy liver failure and complications. • Combined CT volumetry, gadolinium-ethoxybenzyl-diethylenetriamine-pentaacetic-acid-enhanced MRI (EOB-MRI), and hyaluronic acid analyses improved the estimation of severe liver fibrosis compared to technetium99m galactosyl-serum-albumin scintigraphy.
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Affiliation(s)
- Yujiro Nakazawa
- Department of Radiology, Nihon University School of Medicine, Tokyo, Japan
| | - Masahiro Okada
- Department of Radiology, Nihon University School of Medicine, Tokyo, Japan.
| | - Tomoko Hyodo
- Department of Radiology, Nihon University School of Medicine, Tokyo, Japan
| | - Kenichiro Tago
- Department of Radiology, Nihon University School of Medicine, Tokyo, Japan
| | - Kazu Shibutani
- Department of Radiology, Nihon University School of Medicine, Tokyo, Japan
| | - Mariko Mizuno
- Department of Radiology, Nihon University School of Medicine, Tokyo, Japan
| | - Hiroki Yoshikawa
- Department of Radiology, Nihon University School of Medicine, Tokyo, Japan
| | - Hayato Abe
- Department of Digestive Surgery, Nihon University School of Medicine, Tokyo, Japan
| | - Tokio Higaki
- Department of Digestive Surgery, Nihon University School of Medicine, Tokyo, Japan
| | - Yukiyasu Okamura
- Department of Digestive Surgery, Nihon University School of Medicine, Tokyo, Japan
| | - Tadatoshi Takayama
- Department of Digestive Surgery, Nihon University School of Medicine, Tokyo, Japan
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Kamata K, Imai H, Matsumoto H, Yamashita Y, Kato T, Nishi K, Omoto S, Minaga K, Yamao K, Hyodo T, Im S, Hara A, Yoshikawa T, Ishikawa R, Okamoto A, Yamazaki T, Nakai A, Ueshima K, Chiba Y, Takenaka M, Watanabe T, Kitano M, Kudo M. Low-dose gemcitabine plus nab-paclitaxel versus standard-dose gemcitabine plus nab-paclitaxel in elderly patients with metastatic pancreatic cancer: A randomized Phase II trial. JGH Open 2023; 7:659-666. [PMID: 37744711 PMCID: PMC10517437 DOI: 10.1002/jgh3.12966] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Accepted: 08/27/2023] [Indexed: 09/26/2023]
Abstract
Background and Aim A multicenter, open-label randomized Phase II trial was conducted to determine whether low-dose gemcitabine plus nab-paclitaxel (GnP) could improve tolerability and show equivalent efficacy to the standard-dose GnP for elderly patients with metastatic pancreatic cancer. Methods Consecutive patients aged ≥65 years with metastatic pancreatic cancer who presented at one of four Japanese referral centers between November 2016 and January 2021 were enrolled. The 60 patients were randomly assigned to low- or standard-dose groups with a 1:1 ratio. Patients in the low-dose GnP group received gemcitabine at a dose of 250 mg/m2 and nab-paclitaxel at 125 mg/m2. Results Low-dose GnP significantly decreased the rate of cases requiring dose reduction (16.7% vs 63.3%). The response rate (36.7% vs 33.3%) and progression-free survival (7.3 vs 8 months) were comparable between the low- and standard-dose groups as determined by independent review. The difference in the median overall survival between the two groups was not significant (7.9 vs 12 months). The proportion of patients with hematologic and non-hematologic treatment-related adverse events was comparable between the two groups. Conclusion Low-dose GnP had an equivalent efficacy to conventional therapy; however, it did not reduce adverse events.
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Affiliation(s)
- Ken Kamata
- Department of Gastroenterology and HepatologyKindai University Faculty of MedicineOsakaJapan
| | - Hajime Imai
- Department of GastroenterologyOkanami General HospitalMieJapan
| | - Hisakazu Matsumoto
- Department of GastroenterologyJapanese Red Cross Wakayama Medical CenterWakayamaJapan
| | - Yukitaka Yamashita
- Department of GastroenterologyJapanese Red Cross Wakayama Medical CenterWakayamaJapan
| | - Takao Kato
- Department of GastroenterologyHyogo Prefectural Awaji Medical CenterHyogoJapan
| | - Katsuhisa Nishi
- Department of GastroenterologyHyogo Prefectural Awaji Medical CenterHyogoJapan
| | - Shunsuke Omoto
- Department of Gastroenterology and HepatologyKindai University Faculty of MedicineOsakaJapan
| | - Kosuke Minaga
- Department of Gastroenterology and HepatologyKindai University Faculty of MedicineOsakaJapan
| | - Kentaro Yamao
- Department of Gastroenterology and HepatologyKindai University Faculty of MedicineOsakaJapan
| | - Tomoko Hyodo
- Department of RadiologyKindai University Faculty of MedicineOsaka‐SayamaJapan
| | - Sung‐Woon Im
- Department of RadiologyKindai University Faculty of MedicineOsaka‐SayamaJapan
| | - Akane Hara
- Department of Gastroenterology and HepatologyKindai University Faculty of MedicineOsakaJapan
| | - Tomoe Yoshikawa
- Department of Gastroenterology and HepatologyKindai University Faculty of MedicineOsakaJapan
| | - Rei Ishikawa
- Department of Gastroenterology and HepatologyKindai University Faculty of MedicineOsakaJapan
| | - Ayana Okamoto
- Department of Gastroenterology and HepatologyKindai University Faculty of MedicineOsakaJapan
| | - Tomohiro Yamazaki
- Department of Gastroenterology and HepatologyKindai University Faculty of MedicineOsakaJapan
| | - Atsushi Nakai
- Department of Gastroenterology and HepatologyKindai University Faculty of MedicineOsakaJapan
| | - Kazuomi Ueshima
- Department of Gastroenterology and HepatologyKindai University Faculty of MedicineOsakaJapan
| | - Yasutaka Chiba
- Clinical Research CenterKindai University HospitalOsakaJapan
| | - Mamoru Takenaka
- Department of Gastroenterology and HepatologyKindai University Faculty of MedicineOsakaJapan
| | - Tomohiro Watanabe
- Department of Gastroenterology and HepatologyKindai University Faculty of MedicineOsakaJapan
| | - Masayuki Kitano
- Second Department of Internal MedicineWakayama Medical University School of MedicineWakayamaJapan
| | - Masatoshi Kudo
- Department of Gastroenterology and HepatologyKindai University Faculty of MedicineOsakaJapan
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Catalano F, Ceballos Sanchez C, Chakaberia I, Chakraborty P, Chandra S, Chapeland S, Chartier M, Chattopadhyay S, Chattopadhyay S, Chavez T, Cheng T, Cheshkov C, Cheynis B, Chibante Barroso V, Chinellato D, Cho S, Chochula P, Christakoglou P, Christensen C, Christiansen P, Chujo T, Cicalo C, Cifarelli L, Cindolo F, Ciupek M, Clai G, Cleymans J, Colamaria F, Colburn J, Colella D, Collu A, Colocci M, Concas M, Conesa Balbastre G, Conesa del Valle Z, Contin G, Contreras J, Coquet M, Cormier T, Cortese P, Cosentino M, Costa F, Costanza S, Crochet P, Cruz-Torres R, Cuautle E, Cui P, Cunqueiro L, Dainese A, Danisch M, Danu A, Das P, Das P, Das S, Dash S, De Caro A, de Cataldo G, De Cilladi L, de Cuveland J, De Falco A, De Gruttola D, De Marco N, De Martin C, De Pasquale S, Deb S, Degenhardt H, Deja K, Del Grande R, Dello Stritto L, Deng W, Dhankher P, Di Bari D, Di Mauro A, Diaz R, Dietel T, Ding Y, Divià R, Dixit D, Djuvsland Ø, Dmitrieva U, Do J, Dobrin A, Dönigus B, Dubey A, Dubla A, Dudi S, Dupieux P, Durkac M, Dzalaiova N, Eder T, Ehlers R, Eikeland V, Eisenhut F, Elia D, Erazmus B, Ercolessi F, Erhardt F, Erokhin A, Ersdal M, Espagnon B, Eulisse G, Evans D, Evdokimov S, Fabbietti L, Faggin M, Faivre J, Fan F, Fan W, Fantoni A, Fasel M, Fecchio P, Feliciello A, Feofilov G, Fernández Téllez A, Ferrero A, Ferretti A, Feuillard V, Figiel J, Filova V, Finogeev D, Fionda F, Fiorenza G, Flor F, Flores A, Foertsch S, Fokin S, Fragiacomo E, Frajna E, Francisco A, Fuchs U, Funicello N, Furget C, Furs A, Gaardhøje J, Gagliardi M, Gago A, Gal A, Galvan C, Ganoti P, Garabatos C, Garcia J, Garcia-Solis E, Garg K, Gargiulo C, Garibli A, Garner K, Gasik P, Gauger E, Gautam A, Gay Ducati M, Germain M, Ghosh S, Giacalone M, Gianotti P, Giubellino P, Giubilato P, Glaenzer A, Glässel P, Glimos E, Goh D, Gonzalez V, González-Trueba L, Gorbunov S, Gorgon M, Görlich L, Gotovac S, Grabski V, Graczykowski L, Greiner L, Grelli A, Grigoras C, Grigoriev V, Grigoryan S, Grosa F, Grosse-Oetringhaus J, Grosso R, Grund D, Guardiano G, Guernane R, Guilbaud M, Gulbrandsen K, Gunji T, Guo W, Gupta A, Gupta R, Guzman S, Gyulai L, Habib M, Hadjidakis C, Haidenbauer J, Hamagaki H, Hamid M, Hannigan R, Haque M, Harlenderova A, Harris J, Harton A, Hasenbichler J, Hassan H, Hatzifotiadou D, Hauer P, Havener L, Heckel S, Hellbär E, Helstrup H, Herman T, Herrera Corral G, Herrmann F, Hetland K, Heybeck B, Hillemanns H, Hills C, Hippolyte B, Hofman B, Hohlweger B, Honermann J, Hong G, Horak D, Hornung S, Horzyk A, Hosokawa R, Hou Y, Hristov P, Hughes C, Huhn P, Huhta L, Hulse C, Humanic T, Hushnud H, Husova L, Hutson A, Hyodo T, Iddon J, Ilkaev R, Ilyas H, Inaba M, Innocenti G, Ippolitov M, Isakov A, Isidori T, Islam M, Ivanov M, Ivanov V, Izucheev V, Jablonski M, Jacak B, Jacazio N, Jacobs P, Jadlovska S, Jadlovsky J, Jaelani S, Jahnke C, Jakubowska M, Jalotra A, Janik M, Janson T, Jercic M, Jevons O, Jimenez A, Jonas F, Jones P, Jowett J, Jung J, Jung M, Junique A, Jusko A, Kabus M, Kaewjai J, Kalinak P, Kalteyer A, Kalweit A, Kamiya Y, Kaplin V, Karasu Uysal A, Karatovic D, Karavichev O, Karavicheva T, Karczmarczyk P, Karpechev E, Kashyap V, Kazantsev A, Kebschull U, Keidel R, Keijdener D, Keil M, Ketzer B, Khan A, Khan S, Khanzadeev A, Kharlov Y, Khatun A, Khuntia A, Kileng B, Kim B, Kim C, Kim D, Kim E, Kim J, Kim J, Kim J, Kim J, Kim M, Kim S, Kim T, Kirsch S, Kisel I, Kiselev S, Kisiel A, Kitowski J, Klay J, Klein J, Klein S, Klein-Bösing C, Kleiner M, Klemenz T, Kluge A, Knospe A, Kobdaj C, Kollegger T, Kondratyev A, Kondratyeva N, Kondratyuk E, Konig J, Konigstorfer S, Konopka P, Kornakov G, Koryciak S, Kotliarov A, Kovalenko O, Kovalenko V, Kowalski M, Králik I, Kravčáková A, Kreis L, Krivda M, Krizek F, Krizkova Gajdosova K, Kroesen M, Krüger M, Krupova D, Kryshen E, Krzewicki M, Kučera V, Kuhn C, Kuijer P, Kumaoka T, Kumar D, Kumar L, Kumar N, Kundu S, Kurashvili P, Kurepin A, Kurepin A, Kuryakin A, Kushpil S, Kvapil J, Kweon M, Kwon J, Kwon Y, La Pointe S, La Rocca P, Lai Y, Lakrathok A, Lamanna M, Langoy R, Larionov P, Laudi E, Lautner L, Lavicka R, Lazareva T, Lea R, Lehrbach J, Lemmon R, León Monzón I, Lesch M, Lesser E, Lettrich M, Lévai P, Li X, Li X, Lien J, Lietava R, Lim B, Lim S, Lindenstruth V, Lindner A, Lippmann C, Liu A, Liu D, Liu J, Lofnes I, Loginov V, Loizides C, Loncar P, Lopez J, Lopez X, López Torres E, Luhder J, Lunardon M, Luparello G, Ma Y, Maevskaya A, Mager M, Mahmoud T, Maire A, Malaev M, Malik N, Malik Q, Malik S, Malinina L, Mal’Kevich D, Mallick D, Mallick N, Mandaglio G, Manko V, Manso F, Manzari V, Mao Y, Margagliotti G, Margotti A, Marín A, Markert C, Marquard M, Martin N, Martinengo P, Martinez J, Martínez M, Martínez García G, Masciocchi S, Masera M, Masoni A, Massacrier L, Mastroserio A, Mathis A, Matonoha O, Matuoka P, Matyja A, Mayer C, Mazuecos A, Mazzaschi F, Mazzilli M, Mdhluli J, Mechler A, Melikyan Y, Menchaca-Rocha A, Meninno E, Menon A, Meres M, Mhlanga S, Miake Y, Micheletti L, Migliorin L, Mihaylov D, Mikhaylov K, Mishra A, Miśkowiec D, Modak A, Mohanty A, Mohanty B, Mohisin Khan M, Molander M, Moravcova Z, Mordasini C, Moreira De Godoy D, Morozov I, Morsch A, Mrnjavac T, Muccifora V, Mudnic E, Mühlheim D, Muhuri S, Mulligan J, Mulliri A, Munhoz M, Munzer R, Murakami H, Murray S, Musa L, Musinsky J, Myrcha J, Naik B, Nair R, Nandi B, Nania R, Nappi E, Nassirpour A, Nath A, Nattrass C, Neagu A, Negru A, Nellen L, Nesbo S, Neskovic G, Nesterov D, Nielsen B, Nielsen E, Nikolaev S, Nikulin S, Nikulin V, Noferini F, Noh S, Nomokonov P, Norman J, Novitzky N, Nowakowski P, Nyanin A, Nystrand J, Ogino M, Ohlson A, Ohnishi A, Okorokov V, Oleniacz J, Oliveira Da Silva A, Oliver M, Onnerstad A, Oppedisano C, Ortiz Velasquez A, Osako T, Oskarsson A, Otwinowski J, Oya M, Oyama K, Pachmayer Y, Padhan S, Pagano D, Paić G, Palasciano A, Panebianco S, Park J, Parkkila J, Pathak S, Patra R, Paul B, Pei H, Peitzmann T, Peng X, Pereira L, Pereira Da Costa H, Peresunko D, Perez G, Perrin S, Pestov Y, Petráček V, Petrov V, Petrovici M, Pezzi R, Piano S, Pikna M, Pillot P, Pinazza O, Pinsky L, Pinto C, Pisano S, Płoskoń M, Planinic M, Pliquett F, Poghosyan M, Polichtchouk B, Politano S, Poljak N, Pop A, Porteboeuf-Houssais S, Porter J, Pozdniakov V, Prasad S, Preghenella R, Prino F, Pruneau C, Pshenichnov I, Puccio M, Qiu S, Quaglia L, Quishpe R, Ragoni S, Rakotozafindrabe A, Ramello L, Rami F, Ramirez S, Rancien T, Raniwala R, Raniwala S, Räsänen S, Rath R, Ravasenga I, Read K, Redelbach A, Redlich K, Rehman A, Reichelt P, Reidt F, Reme-ness H, Rescakova Z, Reygers K, Riabov A, Riabov V, Richert T, Richter M, Riegler W, Riggi F, Ristea C, Rodríguez Cahuantzi M, Røed K, Rogalev R, Rogochaya E, Rogoschinski T, Rohr D, Röhrich D, Rojas P, Rojas Torres S, Rokita P, Ronchetti F, Rosano A, Rosas E, Rossi A, Roy A, Roy P, Roy S, Rubini N, Rueda O, Ruggiano D, Rui R, Rumyantsev B, Russek P, Russo R, Rustamov A, Ryabinkin E, Ryabov Y, Rybicki A, Rytkonen H, Rzesa W, Saarimaki O, Sadek R, Sadovsky S, Saetre J, Šafařík K, Saha S, Saha S, Sahoo B, Sahoo P, Sahoo R, Sahoo S, Sahu D, Sahu P, Saini J, Sakai S, Salvan M, Sambyal S, Saramela T, Sarkar D, Sarkar N, Sarma P, Sarti V, Sas M, Schambach J, Scheid H, Schiaua C, Schicker R, Schmah A, Schmidt C, Schmidt H, Schmidt M, Schmidt M, Schmidt N, Schmier A, Schotter R, Schukraft J, Schwarz K, Schweda K, Scioli G, Scomparin E, Seger J, Sekiguchi Y, Sekihata D, Selyuzhenkov I, Senyukov S, Seo J, Serebryakov D, Šerkšnytė L, Sevcenco A, Shaba T, Shabanov A, Shabetai A, Shahoyan R, Shaikh W, Shangaraev A, Sharma A, Sharma D, Sharma H, Sharma M, Sharma N, Sharma S, Sharma U, Shatat A, Sheibani O, Shigaki K, Shimomura M, Shirinkin S, Shou Q, Sibiriak Y, Siddhanta S, Siemiarczuk T, Silva T, Silvermyr D, Simantathammakul T, Simonetti G, Singh B, Singh R, Singh R, Singh R, Singh V, Singhal V, Sinha T, Sitar B, Sitta M, Skaali T, Skorodumovs G, Slupecki M, Smirnov N, Snellings R, Soncco C, Song J, Songmoolnak A, Soramel F, Sorensen S, Sputowska I, Stachel J, Stan I, Steffanic P, Stiefelmaier S, Stocco D, Storehaug I, Storetvedt M, Stratmann P, Strazzi S, Stylianidis C, Suaide A, Suire C, Sukhanov M, Suljic M, Sultanov R, Sumberia V, Sumowidagdo S, Swain S, Szabo A, Szarka I, Tabassam U, Taghavi S, Taillepied G, Takahashi J, Tambave G, Tang S, Tang Z, Tapia Takaki J, Tapus N, Tarzila M, Tauro A, Tejeda Muñoz G, Telesca A, Terlizzi L, Terrevoli C, Tersimonov G, Thakur S, Thomas D, Tieulent R, Tikhonov A, Timmins A, Tkacik M, Toia A, Topilskaya N, Toppi M, Torales-Acosta F, Tork T, Torres Ramos A, Trifiró A, Triolo A, Tripathy S, Tripathy T, Trogolo S, Trubnikov V, Trzaska W, Trzcinski T, Tumkin A, Turrisi R, Tveter T, Ullaland K, Uras A, Urioni M, Usai G, Vala M, Valle N, Vallero S, van Doremalen L, van Leeuwen M, Vande Vyvre P, Varga D, Varga Z, Varga-Kofarago M, Vasileiou M, Vasiliev A, Vázquez Doce O, Vechernin V, Velure A, Vercellin E, Vergara Limón S, Vermunt L, Vértesi R, Verweij M, Vickovic L, Vilakazi Z, Villalobos Baillie O, Vino G, Vinogradov A, Virgili T, Vislavicius V, Vodopyanov A, Volkel B, Völkl M, Voloshin K, Voloshin S, Volpe G, von Haller B, Vorobyev I, Vozniuk N, Vrláková J, Wagner B, Wang C, Wang D, Weber M, Weelden R, Wegrzynek A, Wenzel S, Wessels J, Weyhmiller S, Wiechula J, Wikne J, Wilk G, Wilkinson J, Willems G, Windelband B, Winn M, Witt W, Wright J, Wu W, Wu Y, Xu R, Yadav A, Yalcin S. First study of the two-body scattering involving charm hadrons. Int J Clin Exp Med 2022. [DOI: 10.1103/physrevd.106.052010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Tanaka H, Minaga K, Otsuka Y, Masuta Y, Kamata K, Yamao K, Takenaka M, Hyodo T, Kimura M, Watanabe T, Kudo M. Pancreatic neuroendocrine carcinoma with unique morphological features mimicking intraductal papillary mucinous carcinoma: A case report. Front Med (Lausanne) 2022; 9:951834. [PMID: 35911398 PMCID: PMC9326047 DOI: 10.3389/fmed.2022.951834] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2022] [Accepted: 06/24/2022] [Indexed: 11/13/2022] Open
Abstract
BackgroundPancreatic neuroendocrine carcinoma (PanNEC) is a rare disease entity with rapid progression and poor prognosis. Here, we report a PanNEC case with unique morphological features mimicking intraductal papillary mucinous carcinoma.Case presentationA 69-year-old Japanese man was referred to our hospital for further evaluation of weight loss and deterioration of diabetes mellitus. Contrast-enhanced computed tomography showed a solid and cystic mass with hypo-enhancement at the tail of the pancreas. The main pancreatic duct (MPD) was diffusely dilated without obstruction, accompanied by marked parenchymal atrophy. Multiple peritoneal and omental nodules were observed, suggesting tumor dissemination. Endoscopic retrograde cholangiopancreatography revealed that the mass correlated with the dilated MPD. During pancreatography, a large amount of mucus was extruded from the pancreatic orifice of the ampulla. Based on these imaging findings, intraductal papillary mucinous carcinoma was suspected. Per-oral pancreatoscopy (POPS)-guided tumor biopsies were conducted for the lesion's solid components. Histopathological examination of the biopsied material confirmed small-cell-type PanNEC with a Ki-67 labeling index of 90%. Due to his condition's rapid decline, the patient was given the best supportive care and died 28 days after diagnosis.ConclusionAlthough rare, PanNEC, which correlates with the MPD and is accompanied by marked dilation of the MPD, does exist as one phenotype. In such cases, POPS-guided biopsy could be a useful diagnostic modality.
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Affiliation(s)
- Hidekazu Tanaka
- Department of Gastroenterology and Hepatology, Kindai University Faculty of Medicine, Osaka-Sayama, Japan
| | - Kosuke Minaga
- Department of Gastroenterology and Hepatology, Kindai University Faculty of Medicine, Osaka-Sayama, Japan
- *Correspondence: Kosuke Minaga
| | - Yasuo Otsuka
- Department of Gastroenterology and Hepatology, Kindai University Faculty of Medicine, Osaka-Sayama, Japan
| | - Yasuhiro Masuta
- Department of Gastroenterology and Hepatology, Kindai University Faculty of Medicine, Osaka-Sayama, Japan
| | - Ken Kamata
- Department of Gastroenterology and Hepatology, Kindai University Faculty of Medicine, Osaka-Sayama, Japan
| | - Kentaro Yamao
- Department of Gastroenterology and Hepatology, Kindai University Faculty of Medicine, Osaka-Sayama, Japan
| | - Mamoru Takenaka
- Department of Gastroenterology and Hepatology, Kindai University Faculty of Medicine, Osaka-Sayama, Japan
| | - Tomoko Hyodo
- Department of Radiology, Kindai University Faculty of Medicine, Osaka-Sayama, Japan
| | - Masatomo Kimura
- Department of Pathology, Kindai University Faculty of Medicine, Osaka-Sayama, Japan
| | - Tomohiro Watanabe
- Department of Gastroenterology and Hepatology, Kindai University Faculty of Medicine, Osaka-Sayama, Japan
| | - Masatoshi Kudo
- Department of Gastroenterology and Hepatology, Kindai University Faculty of Medicine, Osaka-Sayama, Japan
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Nakai A, Kamata K, Hyodo T, Chikugo T, Hara A, Otsuka Y, Tanaka H, Yoshikawa T, Ishikawa R, Okamoto A, Yamazaki T, Omoto S, Minaga K, Yamao K, Takenaka M, Chiba Y, Watanabe T, Matsumoto I, Takeyama Y, Kudo M. Utility of contrast-enhanced harmonic EUS for diagnosis of portal vein invasion by pancreatic cancer. Endosc Ultrasound 2022; 11:401-406. [PMID: 35848657 DOI: 10.4103/eus-d-21-00185] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
Background The value of contrast-enhanced harmonic EUS (CH-EUS) for diagnosis of portal vein invasion in patients with pancreatic cancer was evaluated. Patients and Methods This single-center, retrospective study included consecutive patients with pancreatic cancer who underwent both surgical resection after preoperative EUS, CH-EUS, and contrast-enhanced computed tomography (CE-CT) examinations between April 2015 and August 2017. CH-EUS evaluation was performed during the late phase. Portal vein invasion on EUS and CH-EUS was defined as no continuity in the line of the vessel wall. Definition of portal vein invasion on CE-CT was based on the Loyer's criteria. The accuracy of three modalities for diagnosis of invasion into the portal vein was compared using the McNemar's test. Results Eighty-eight patients (mean age: 71.0 years, ratio of male to female: 48:40) were eligible. Postoperative pathological results were as follows: seven cases of portal vein invasion; 81 cases without. Diagnostic accuracy of EUS, CH-EUS, and CE-CT for diagnosing invasion into the portal vein was 72.7%, 93.2%, and 81.8%, respectively. The differences between CH-EUS and CE-CT (P = 0.0094) and CH-EUS and EUS (P = 0.0022) were significant. EUS and CE-CT were comparable. Conclusion CH-EUS is useful for diagnosis of portal vein invasion by pancreatic cancer.
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Affiliation(s)
- Atsushi Nakai
- Department of Gastroenterology and Hepatology, Kindai University Faculty of Medicine, Osaka-Sayama, Japan
| | - Ken Kamata
- Department of Gastroenterology and Hepatology, Kindai University Faculty of Medicine, Osaka-Sayama, Japan
| | - Tomoko Hyodo
- Department of Radiology, Kindai University Faculty of Medicine, Osaka-Sayama, Japan
| | - Takaaki Chikugo
- Department of Diagnostic Pathology, Kindai University Hospital, Osaka-Sayama, Japan
| | - Akane Hara
- Department of Gastroenterology and Hepatology, Kindai University Faculty of Medicine, Osaka-Sayama, Japan
| | - Yasuo Otsuka
- Department of Gastroenterology and Hepatology, Kindai University Faculty of Medicine, Osaka-Sayama, Japan
| | - Hidekazu Tanaka
- Department of Gastroenterology and Hepatology, Kindai University Faculty of Medicine, Osaka-Sayama, Japan
| | - Tomoe Yoshikawa
- Department of Gastroenterology and Hepatology, Kindai University Faculty of Medicine, Osaka-Sayama, Japan
| | - Rei Ishikawa
- Department of Gastroenterology and Hepatology, Kindai University Faculty of Medicine, Osaka-Sayama, Japan
| | - Ayana Okamoto
- Department of Gastroenterology and Hepatology, Kindai University Faculty of Medicine, Osaka-Sayama, Japan
| | - Tomohiro Yamazaki
- Department of Gastroenterology and Hepatology, Kindai University Faculty of Medicine, Osaka-Sayama, Japan
| | - Shunsuke Omoto
- Department of Gastroenterology and Hepatology, Kindai University Faculty of Medicine, Osaka-Sayama, Japan
| | - Kosuke Minaga
- Department of Gastroenterology and Hepatology, Kindai University Faculty of Medicine, Osaka-Sayama, Japan
| | - Kentaro Yamao
- Department of Gastroenterology and Hepatology, Kindai University Faculty of Medicine, Osaka-Sayama, Japan
| | - Mamoru Takenaka
- Department of Gastroenterology and Hepatology, Kindai University Faculty of Medicine, Osaka-Sayama, Japan
| | - Yasutaka Chiba
- Clinical Research Center, Kindai University Hospital, Osaka-Sayama, Japan
| | - Tomohiro Watanabe
- Department of Gastroenterology and Hepatology, Kindai University Faculty of Medicine, Osaka-Sayama, Japan
| | - Ippei Matsumoto
- Department of Surgery, Kindai University Faculty of Medicine, Osaka-Sayama, Japan
| | - Yoshifumi Takeyama
- Department of Surgery, Kindai University Faculty of Medicine, Osaka-Sayama, Japan
| | - Masatoshi Kudo
- Department of Gastroenterology and Hepatology, Kindai University Faculty of Medicine, Osaka-Sayama, Japan
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Okada M, Numata K, Nihonmatsu H, Tomita K, Takeda A, Tago K, Hyodo T, Eriguchi T, Nakano M. Pathological Appearance of Focal Liver Reactions after Radiotherapy for Hepatocellular Carcinoma. Diagnostics (Basel) 2022; 12:1072. [PMID: 35626228 PMCID: PMC9139971 DOI: 10.3390/diagnostics12051072] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Revised: 04/21/2022] [Accepted: 04/21/2022] [Indexed: 11/30/2022] Open
Abstract
We studied five pathological specimens from five patients at 1.5, 3.0, 4.0, 13.5, and 14.0 months after radiotherapy for HCC. Four needle biopsies were obtained to investigate liver parenchyma of focal liver reaction (FLR) around treated HCC, when patients had newly developed HCC or local recurrence appeared in the liver. Liver resection was performed in one case where insufficient radiotherapy effect for HCC was suspected. In all patients, FLR was recognized as a hypervascular area around the HCC on enhanced CT and enhanced Gd-EOB-DTPA (EOB-MRI). Liver specimens were analyzed to assess the pathological characteristics of FLR. FLR was recognized as prolonged liver enhancement in enhanced CT and EOB-MRI. From pathological understanding, sinusoidal dilatation with degeneration and desquamation was caused by direct endothelial cell injury following radiotherapy. Hepatocytes and endothelium fell off, and so the portal tract came close, and hepatic arteries increase simultaneously, resulting in FLR around HCC after radiotherapy. In conclusion, the prolapse of hepatocytes and sinusoidal endothelium induced neovascularization of hepatic arteries due to the repair mechanisms; in addition, these prolapse may shorten the distance between each portal region and the hepatic arteries flowing through the portal region become more prominent in FLR.
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Affiliation(s)
- Masahiro Okada
- Department of Radiology, Nihon University School of Medicine, Itabashi-ku, Tokyo 173-8610, Tokyo, Japan;
- Gastroenterological Center, Yokohama City University Medical Center, 4-57 Urafune-cho, Minami-ku, Yokohama 232-0024, Kanagawa, Japan; (K.N.); (H.N.)
| | - Kazushi Numata
- Gastroenterological Center, Yokohama City University Medical Center, 4-57 Urafune-cho, Minami-ku, Yokohama 232-0024, Kanagawa, Japan; (K.N.); (H.N.)
| | - Hiromi Nihonmatsu
- Gastroenterological Center, Yokohama City University Medical Center, 4-57 Urafune-cho, Minami-ku, Yokohama 232-0024, Kanagawa, Japan; (K.N.); (H.N.)
| | - Kengo Tomita
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, National Defense Medical College, 3-2 Namiki, Tokorozawa-shi 359-8513, Saitama, Japan;
| | - Atsuya Takeda
- Radiation Oncology Center, Ofuna Chuo Hospital, 6-2-24, Ofuna, Kamakura 247-0056, Kanagawa, Japan; (A.T.); (T.E.)
| | - Kenichiro Tago
- Department of Radiology, Nihon University School of Medicine, Itabashi-ku, Tokyo 173-8610, Tokyo, Japan;
| | - Tomoko Hyodo
- Department of Radiology, Kindai University Faculty of Medicine, 377-2 Ohno-Higashi, Osaka-Sayama 589-8511, Osaka, Japan;
| | - Takahisa Eriguchi
- Radiation Oncology Center, Ofuna Chuo Hospital, 6-2-24, Ofuna, Kamakura 247-0056, Kanagawa, Japan; (A.T.); (T.E.)
| | - Masayuki Nakano
- Department of Pathology, Yokohama City University Medical Center, 4-57 Urafune-cho, Minami-ku, Yokohama 232-0024, Kanagawa, Japan;
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Morimoto-Ishikawa D, Hyodo T, Takenaka M, Matsukubo Y, Numoto I, Itoh M, Ohmi M, Kamata K, Ueda Y, Wakana M, Kudo M, Saito S, Ishii K. Comparison between gradient and spin-echo (GRASE) and compressed sensing sequences for single breath-hold three-dimensional magnetic resonance cholangiopancreatography in patients with T1 hyperintense bile. Eur J Radiol 2022; 150:110279. [DOI: 10.1016/j.ejrad.2022.110279] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Revised: 03/19/2022] [Accepted: 03/22/2022] [Indexed: 11/29/2022]
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8
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Shibutani K, Okada M, Tsukada J, Hyodo T, Ibukuro K, Abe H, Matsumoto N, Midorikawa Y, Moriyama M, Takayama T. A proposed model on MR elastography for predicting postoperative major complications in patients with hepatocellular carcinoma. BJR Open 2021; 3:20210019. [PMID: 34877453 PMCID: PMC8611681 DOI: 10.1259/bjro.20210019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2021] [Revised: 08/27/2021] [Accepted: 09/09/2021] [Indexed: 11/05/2022] Open
Abstract
Objective To develop a model for predicting post-operative major complications in patients with hepatocellular carcinoma (HCC). Methods In all, 186 consecutive patients with pre-operative MR elastography were included. Complications were categorised using Clavien‒Dindo classification, with major complications defined as ≥Grade 3. Liver-stiffness measurement (LSM) values were measured on elastogram. The indocyanine green clearance rate of liver remnant (ICG-Krem) was based on the results of CT volumetry, intraoperative data, and ICG-K value. For an easy application to the prediction model, the continuous variables were converted to categories. Moreover, logistic regression analysis and fivefold cross-validation were performed. The prediction model's discriminative performance was evaluated using the area under the receiver operating characteristic curve (AUC), and the calibration of the model was assessed by the Hosmer‒Lemeshow test. Results 43 of 186 patients (23.1%) had major complications. The multivariate analysis demonstrated that LSM, albumin-bilirubin (ALBI) score, intraoperative blood loss, and ICG-Krem were significantly associated with major complications. The median AUC of the five validation subsets was 0.878. The Hosmer-Lemeshow test confirmed no evidence of inadequate fit (p = 0.13, 0.19, 0.59, 0.59, and 0.73) on the fivefold cross-validation. The prediction model for major complications was as follows: -2.876 + 2.912 [LSM (>5.3 kPa)]+1.538 [ALBI score (>-2.28)]+0.531 [Intraoperative blood loss (>860 ml)]+0.257 [ICG-Krem (<0.10)]. Conclusion The proposed prediction model can be used to predict post-operative major complications in patients with HCC. Advances in knowledge The proposed prediction model can be used in routine clinical practice to identify post-operative major complications in patients with HCC and to strategise appropriate treatments of HCC.
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Affiliation(s)
- Kazu Shibutani
- Department of Radiology, Nihon University School of Medicine, Tokyo, Japan
| | - Masahiro Okada
- Department of Radiology, Nihon University School of Medicine, Tokyo, Japan
| | - Jitsuro Tsukada
- Department of Radiology, Nihon University School of Medicine, Tokyo, Japan
| | - Tomoko Hyodo
- Department of Radiology, Kindai University school of medicine, Osaka, Japan
| | - Kenji Ibukuro
- Department of Radiology, Nihon University School of Medicine, Tokyo, Japan
| | - Hayato Abe
- Department of Digestive Surgery, Nihon University School of Medicine, Tokyo, Japan
| | - Naoki Matsumoto
- Department of Gastroenterology and Hepatology, Nihon University School of Medicine, Tokyo, Japan
| | - Yutaka Midorikawa
- Department of Digestive Surgery, Nihon University School of Medicine, Tokyo, Japan
| | - Mitsuhiko Moriyama
- Department of Gastroenterology and Hepatology, Nihon University School of Medicine, Tokyo, Japan
| | - Tadatoshi Takayama
- Department of Digestive Surgery, Nihon University School of Medicine, Tokyo, Japan
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9
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Otsuka Y, Kamata K, Hyodo T, Chikugo T, Hara A, Tanaka H, Yoshikawa T, Ishikawa R, Okamoto A, Yamazaki T, Nakai A, Omoto S, Minaga K, Yamao K, Takenaka M, Chiba Y, Watanabe T, Nakai T, Matsumoto I, Takeyama Y, Kudo M. Utility of contrast-enhanced harmonic endoscopic ultrasonography for T-staging of patients with extrahepatic bile duct cancer. Surg Endosc 2021; 36:3254-3260. [PMID: 34462868 DOI: 10.1007/s00464-021-08637-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Accepted: 07/13/2021] [Indexed: 11/27/2022]
Abstract
BACKGROUND The value of contrast-enhanced harmonic endoscopic ultrasonography (CH-EUS) for T-staging in patients with extrahepatic bile duct cancer was evaluated. METHODS This single-center, retrospective study included consecutive patients with extrahepatic bile duct cancer who underwent surgical resection after preoperative EUS, CH-EUS, and contrast-enhanced CT (CE-CT) examinations between June 2014 and August 2017. The capacity of these modalities for T-staging of extrahepatic bile duct cancer was evaluated by assessing invasion beyond the biliary wall into the surrounding tissue, gallbladder, liver, pancreas, duodenum, portal vein system (portal vein and/or superior mesenteric vein), inferior vena cava, and hepatic arteries (proper hepatic artery, right. and/or left. hepatic artery). Blind reading of EUS, CH-EUS, and CE-CT images was performed by two expert reviewers each. RESULTS 38 patients were eligible for analysis, of which eight had perihilar bile duct cancer and 30 had distal bile duct cancer. Postoperative T-staging was T1 in 6, T2 in 16, and T3 in 16 cases. CH-EUS was superior to CE-CT for diagnosing invasion beyond the biliary wall into surrounding tissue (92.1% vs. 45.9%, P = 0.0002); the ability to detect invasion to other organs did not differ significantly between the two modalities. The accuracy of CH-EUS for T-staging of tumors was better than that of CE-CT (73.7% vs. 39.5%, P = 0.0059). CH-EUS tended to have a better accuracy than EUS for the diagnosis of invasion beyond the biliary wall into the surrounding tissue (92.1% vs. 78.9%, P = 0.074) and T-staging (73.7% vs. 60.5%, P = 0.074). CONCLUSION CH-EUS is useful for T-staging of extra hepatic bile duct cancer, especially in terms of invasion beyond the biliary wall into the surrounding tissue.
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Affiliation(s)
- Yasuo Otsuka
- Department of Gastroenterology and Hepatology, Faculty of Medicine, Kindai University, 377-2 Ohno-higashi, Osaka-Sayama, 589-8511, Japan
| | - Ken Kamata
- Department of Gastroenterology and Hepatology, Faculty of Medicine, Kindai University, 377-2 Ohno-higashi, Osaka-Sayama, 589-8511, Japan.
| | - Tomoko Hyodo
- Department of Radiology, Faculty of Medicine, Kindai University, Osaka-Sayama, Japan
| | - Takaaki Chikugo
- Department of Diagnostic Pathology, Kindai University Hospital, Osaka-Sayama, Japan
| | - Akane Hara
- Department of Gastroenterology and Hepatology, Faculty of Medicine, Kindai University, 377-2 Ohno-higashi, Osaka-Sayama, 589-8511, Japan
| | - Hidekazu Tanaka
- Department of Gastroenterology and Hepatology, Faculty of Medicine, Kindai University, 377-2 Ohno-higashi, Osaka-Sayama, 589-8511, Japan
| | - Tomoe Yoshikawa
- Department of Gastroenterology and Hepatology, Faculty of Medicine, Kindai University, 377-2 Ohno-higashi, Osaka-Sayama, 589-8511, Japan
| | - Rei Ishikawa
- Department of Gastroenterology and Hepatology, Faculty of Medicine, Kindai University, 377-2 Ohno-higashi, Osaka-Sayama, 589-8511, Japan
| | - Ayana Okamoto
- Department of Gastroenterology and Hepatology, Faculty of Medicine, Kindai University, 377-2 Ohno-higashi, Osaka-Sayama, 589-8511, Japan
| | - Tomohiro Yamazaki
- Department of Gastroenterology and Hepatology, Faculty of Medicine, Kindai University, 377-2 Ohno-higashi, Osaka-Sayama, 589-8511, Japan
| | - Atsushi Nakai
- Department of Gastroenterology and Hepatology, Faculty of Medicine, Kindai University, 377-2 Ohno-higashi, Osaka-Sayama, 589-8511, Japan
| | - Shunsuke Omoto
- Department of Gastroenterology and Hepatology, Faculty of Medicine, Kindai University, 377-2 Ohno-higashi, Osaka-Sayama, 589-8511, Japan
| | - Kosuke Minaga
- Department of Gastroenterology and Hepatology, Faculty of Medicine, Kindai University, 377-2 Ohno-higashi, Osaka-Sayama, 589-8511, Japan
| | - Kentaro Yamao
- Department of Gastroenterology and Hepatology, Faculty of Medicine, Kindai University, 377-2 Ohno-higashi, Osaka-Sayama, 589-8511, Japan
| | - Mamoru Takenaka
- Department of Gastroenterology and Hepatology, Faculty of Medicine, Kindai University, 377-2 Ohno-higashi, Osaka-Sayama, 589-8511, Japan
| | - Yasutaka Chiba
- Clinical Research Center, Kindai University Hospital, Osaka-Sayama, Japan
| | - Tomohiro Watanabe
- Department of Gastroenterology and Hepatology, Faculty of Medicine, Kindai University, 377-2 Ohno-higashi, Osaka-Sayama, 589-8511, Japan
| | - Takuya Nakai
- Department of Surgery, Faculty of Medicine, Kindai University, Osaka-Sayama, Japan
| | - Ippei Matsumoto
- Department of Surgery, Faculty of Medicine, Kindai University, Osaka-Sayama, Japan
| | - Yoshifumi Takeyama
- Department of Surgery, Faculty of Medicine, Kindai University, Osaka-Sayama, Japan
| | - Masatoshi Kudo
- Department of Gastroenterology and Hepatology, Faculty of Medicine, Kindai University, 377-2 Ohno-higashi, Osaka-Sayama, 589-8511, Japan
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Ishikawa R, Kamata K, Hara A, Tanaka H, Okamoto A, Yamazaki T, Nakai A, Omoto S, Minaga K, Yamao K, Takenaka M, Minami Y, Watanabe T, Chiba Y, Chikugo T, Matsumoto I, Takeyama Y, Matsukubo Y, Hyodo T, Kudo M. Utility of contrast-enhanced harmonic endoscopic ultrasonography for predicting the prognosis of pancreatic neuroendocrine neoplasms. Dig Endosc 2021; 33:829-839. [PMID: 33020955 DOI: 10.1111/den.13862] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Accepted: 09/28/2020] [Indexed: 12/13/2022]
Abstract
BACKGROUND AND AIMS Pancreatic neuroendocrine neoplasms (PanNENs), including Grade 1 (G1) or G2 tumors, can have a poor prognosis. This study investigated the value of contrast-enhanced harmonic endoscopic ultrasonography (CH-EUS) for predicting the prognosis of PanNENs. METHODS This single-center, retrospective study included 47 consecutive patients who underwent CH-EUS and were diagnosed with PanNEN by surgical resection or EUS-guided fine needle aspiration between December 2011 and February 2016. Patients were divided into aggressive and non-aggressive groups according to the degree of clinical malignancy. CH-EUS was assessed regarding its capacity for diagnosing aggressive PanNEN, the correspondence between contrast patterns and pathological features, and its ability to predict the prognosis of PanNEN. RESULTS There were 19 cases of aggressive PanNEN and 28 cases of non-aggressive PanNEN. The aggressive group included three G1, four G2, three G3 tumors, three mixed neuroendocrine non-neuroendocrine neoplasms, and six neuroendocrine carcinomas. CH-EUS was superior to contrast-enhanced computed tomography for the diagnosis of aggressive PanNEN (P < 0.001): hypo-enhancement on CH-EUS was an indicator of aggressive PanNEN, with sensitivity, specificity, positive predictive value, negative predictive value, and accuracy of 94.7%, 100%, 100%, 96.6%, and 97.9%, respectively. Among G1/G2 PanNENs, cases with hypo-enhancement on CH-EUS had a poorer prognosis than those with hyper/iso-enhancement (P = 0.0009). Assessment of 36 resected specimens showed that hypo-enhancement on CH-EUS was associated with smaller and fewer vessels and greater degree of fibrosis. CONCLUSION Contrast-enhanced harmonic endoscopic ultrasonography may be useful for predicting the prognosis of PanNENs.
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Affiliation(s)
- Rei Ishikawa
- Department of Gastroenterology and Hepatology, Faculty of Medicine, Kindai University, Osaka, Japan
| | - Ken Kamata
- Department of Gastroenterology and Hepatology, Faculty of Medicine, Kindai University, Osaka, Japan
| | - Akane Hara
- Department of Gastroenterology and Hepatology, Faculty of Medicine, Kindai University, Osaka, Japan
| | - Hidekazu Tanaka
- Department of Gastroenterology and Hepatology, Faculty of Medicine, Kindai University, Osaka, Japan
| | - Ayana Okamoto
- Department of Gastroenterology and Hepatology, Faculty of Medicine, Kindai University, Osaka, Japan
| | - Tomohiro Yamazaki
- Department of Gastroenterology and Hepatology, Faculty of Medicine, Kindai University, Osaka, Japan
| | - Atsushi Nakai
- Department of Gastroenterology and Hepatology, Faculty of Medicine, Kindai University, Osaka, Japan
| | - Shunsuke Omoto
- Department of Gastroenterology and Hepatology, Faculty of Medicine, Kindai University, Osaka, Japan
| | - Kosuke Minaga
- Department of Gastroenterology and Hepatology, Faculty of Medicine, Kindai University, Osaka, Japan
| | - Kentaro Yamao
- Department of Gastroenterology and Hepatology, Faculty of Medicine, Kindai University, Osaka, Japan
| | - Mamoru Takenaka
- Department of Gastroenterology and Hepatology, Faculty of Medicine, Kindai University, Osaka, Japan
| | - Yasunori Minami
- Department of Gastroenterology and Hepatology, Faculty of Medicine, Kindai University, Osaka, Japan
| | - Tomohiro Watanabe
- Department of Gastroenterology and Hepatology, Faculty of Medicine, Kindai University, Osaka, Japan
| | - Yasutaka Chiba
- Clinical Research Center, Faculty of Medicine, Kindai University, Osaka, Japan
| | - Takaaki Chikugo
- Department of Diagnostic Pathology, Kindai University Hospital, Osaka, Japan
| | - Ippei Matsumoto
- Departments of, Department of, Surgery, Faculty of Medicine, Kindai University, Osaka, Japan
| | - Yoshifumfi Takeyama
- Departments of, Department of, Surgery, Faculty of Medicine, Kindai University, Osaka, Japan
| | - Yuko Matsukubo
- Department of, Radiology, Kindai University Faculty of Medicine, Osaka, Japan
| | - Tomoko Hyodo
- Department of, Radiology, Kindai University Faculty of Medicine, Osaka, Japan
| | - Masatoshi Kudo
- Department of Gastroenterology and Hepatology, Faculty of Medicine, Kindai University, Osaka, Japan
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Morimoto D, Hyodo T, Kamata K, Kadoba T, Itoh M, Fukushima H, Chiba Y, Takenaka M, Mochizuki T, Ueda Y, Miyagoshi K, Kudo M, Ishii K. Navigator-triggered and breath-hold 3D MRCP using compressed sensing: image quality and method selection factor assessment. Abdom Radiol (NY) 2020; 45:3081-3091. [PMID: 31925493 DOI: 10.1007/s00261-020-02403-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
PURPOSE To examine whether MRCP using a combination of compressed sensing and sensitivity encoding with navigator-triggered and breath-hold techniques (NT C-SENSE and BH C-SENSE, respectively) have comparable image quality to that of navigator-triggered MRCP using only sensitivity encoding (NT SENSE) at 1.5-T. METHODS Fifty-one participants were enrolled in this prospective study between July and October 2018 and underwent the three 3D MRCP sequences each. The acquisition time and relative duct-to-periductal contrast ratios (RC values) of each bile duct segment were obtained. Visualization of the bile and main pancreatic ducts, background suppression, artifacts, and overall image quality were scored on 5-point scales. Mean and median differences in RC values and qualitative scores of NT C-SENSE and BH C-SENSE relative to NT SENSE were calculated with 95% confidence intervals (CIs). RESULTS Acquisition time of NT SENSE, NT C-SENSE, and BH C-SENSE were 348, 143 (mean for both), and 18 s (for all participants), respectively. The RC value of each bile duct segment was inferior, but the lower limits of the 95% CIs of the mean differences were ≥ - 0.10, for both NT C-SENSE and BH C-SENSE. The visualization score of the intrahepatic duct in BH C-SENSE was inferior to that in NT SENSE (lower 95% CI limit, - 1.5). In both NT C-SENSE and BH C-SENSE, the 95% CIs of the median differences in the other qualitative scores were from - 1.0 to 0.0. CONCLUSION NT C-SENSE and BH C-SENSE have comparable image quality to NT SENSE at 1.5-T.
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Affiliation(s)
- Daisuke Morimoto
- Radiology Center, Kindai University Hospital, 377-2 Ohno-Higashi, Osaka-Sayama, Osaka, Japan.
| | - Tomoko Hyodo
- Department of Radiology, Faculty of Medicine, Kindai University, Osaka-Sayama, Japan
| | - Ken Kamata
- Department of Gastroenterology and Hepatology, Faculty of Medicine, Kindai University, Osaka-Sayama, Japan
| | - Tomoya Kadoba
- Department of Radiology, Faculty of Medicine, Kindai University, Osaka-Sayama, Japan
| | - Makoto Itoh
- Radiology Center, Kindai University Hospital, 377-2 Ohno-Higashi, Osaka-Sayama, Osaka, Japan
| | - Hiroyuki Fukushima
- Radiology Center, Kindai University Hospital, 377-2 Ohno-Higashi, Osaka-Sayama, Osaka, Japan
| | - Yasutaka Chiba
- Clinical Research Center, Kindai University Hospital, Osaka-Sayama, Osaka, Japan
| | - Mamoru Takenaka
- Department of Gastroenterology and Hepatology, Faculty of Medicine, Kindai University, Osaka-Sayama, Japan
| | | | - Yu Ueda
- Philips Japan, Minato-ku, Tokyo, Japan
| | - Keizou Miyagoshi
- Radiology Center, Kindai University Hospital, 377-2 Ohno-Higashi, Osaka-Sayama, Osaka, Japan
| | - Masatoshi Kudo
- Department of Gastroenterology and Hepatology, Faculty of Medicine, Kindai University, Osaka-Sayama, Japan
| | - Kazunari Ishii
- Department of Radiology, Faculty of Medicine, Kindai University, Osaka-Sayama, Japan
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Kitajima Y, Urabe S, Haga S, Hyodo T. MON-PO472: Nutritional Status of Hemodialysis Outpatients with Osteosarcopenic Obesity. Clin Nutr 2019. [DOI: 10.1016/s0261-5614(19)32305-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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13
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Suzuki A, Kashiwagi N, Doi H, Ishii K, Doi K, Kitano M, Kozuka T, Hyodo T, Tsurusaki M, Yagyu Y, Nakanishi K. Patterns of bone metastases from head and neck squamous cell carcinoma. Auris Nasus Larynx 2019; 47:262-267. [PMID: 31445714 DOI: 10.1016/j.anl.2019.08.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2019] [Revised: 06/25/2019] [Accepted: 08/03/2019] [Indexed: 12/26/2022]
Abstract
OBJECTIVE To report clinical features of bone metastases (BM) from head and neck squamous cell carcinoma (HNSCC). METHODS Among 772 patients with HNSCC diagnosed at our hospital over 9 years, 30 patients (3.9%) had clinical evidence of BM (24 men and 6 women; mean age: 63 years). We assessed the time interval from the primary diagnosis to BM development, symptoms attributable to BM, presence of distant metastases to other organs, number of BM, sites of BM, morphologic changes on computed tomography (CT) images, treatment for BM, and overall survival (OS). RESULTS BM at the initial stage were found in 9 patients with HNSCC (30%), and in 21 patients (70%) with HNSCC during the course of the disease. In the later patients, the median time interval from the primary diagnosis was 11.5 months. Nineteen patients (63%) did not have BM-related symptoms, 6 (20%) had pain, 3 (10%) had neurologic symptoms resulting from vertebral or skull metastases, and 2 (7%) had hypercalcemia. Seventeen patients (57%) showed bone-exclusive metastases, and 13 (43%) had distant metastases in other organs. Eleven patients (37%) had monostotic metastases (solitary BM), and 19 patients (63%) had polyostotic metastases (multiple BM). When combined, 9 patients (30%) showed bone-exclusive and monostotic metastases. The most commonly affected site was the thoracolumbar spine, accounting for 34% of total BM, followed by the pelvis (24%), shoulder and thorax (21%), and the extremities (17%). Notably, metastases to bones above the clavicle (craniofacial bones and cervical spine) accounted for only 3% of all bone lesions. CT images showed variable morphologic patterns with osteolytic type in 17 patients (57%), intertrabecular in 7 (23%), osteoblastic in 4 (13%), and mixed in 2 (7%). Systematic chemotherapy for BM was performed in 19 patients and radiotherapy in 18. The median survival time for patients with bone-exclusive and monostotic metastases was significantly longer than that for patients with multi-organ metastases or polyostotic metastases at 18.2 months vs. 5.7 months (p=0.02). Neither chemotherapy nor radiotherapy extended OS. CONCLUSION Thirty percent of BM cases from HNSCC showed bone-exclusive and monostotic metastases. These patients tended to show a more favorable prognosis than patients with multi-organ metastases or polyostotic metastases.
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Affiliation(s)
- Ayako Suzuki
- Department of Radiology, Kindai University Faculty of Medicine, 377-2 Ohno-Higashi, Osakasayama-city, Osaka 589-8511, Japan.
| | - Nobuo Kashiwagi
- Department of Radiology, Kindai University Faculty of Medicine, 377-2 Ohno-Higashi, Osakasayama-city, Osaka 589-8511, Japan.
| | - Hiroshi Doi
- Department of Radiation Oncology, Kindai University Faculty of Medicine, 377-2 Ohno-Higashi, Osakasayama-city, Osaka 589-8511, Japan.
| | - Kazunari Ishii
- Department of Radiology, Kindai University Faculty of Medicine, 377-2 Ohno-Higashi, Osakasayama-city, Osaka 589-8511, Japan.
| | - Katsumi Doi
- Department of Otolaryngology, Kindai University Faculty of Medicine, 377-2 Ohno-Higashi, Osakasayama-city, Osaka 589-8511, Japan.
| | - Mutsukazu Kitano
- Department of Otolaryngology, Kindai University Faculty of Medicine, 377-2 Ohno-Higashi, Osakasayama-city, Osaka 589-8511, Japan.
| | - Takenori Kozuka
- Department of Radiology, Kindai University Faculty of Medicine, 377-2 Ohno-Higashi, Osakasayama-city, Osaka 589-8511, Japan.
| | - Tomoko Hyodo
- Department of Radiology, Kindai University Faculty of Medicine, 377-2 Ohno-Higashi, Osakasayama-city, Osaka 589-8511, Japan.
| | - Masakatsu Tsurusaki
- Department of Radiology, Kindai University Faculty of Medicine, 377-2 Ohno-Higashi, Osakasayama-city, Osaka 589-8511, Japan.
| | - Yukinobu Yagyu
- Department of Radiology, Kindai University Faculty of Medicine, 377-2 Ohno-Higashi, Osakasayama-city, Osaka 589-8511, Japan.
| | - Katsuyuki Nakanishi
- Department of Diagnostic and Interventional Radiology, Osaka International Cancer Institute, Japan.
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Kromrey ML, Hori M, Goshima S, Kozaka K, Hyodo T, Nakamura Y, Nishie A, Tamada T, Shimizu T, Kanki A, Motosugi U. Gadoxetate disodium-related event during image acquisition: a prospective multi-institutional study for better MR practice. Eur Radiol 2019; 30:281-290. [DOI: 10.1007/s00330-019-06358-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2019] [Revised: 06/21/2019] [Accepted: 07/03/2019] [Indexed: 12/16/2022]
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URABE S, Hyodo T, Kato M, Hiyama E, Kurii A, Kitamura M, Hida M, Kurata Y, Sakashita K, Kokubo K. MON-098 Losses of Amino Acid in the Pre- and Post-dilution of On-line HDF under the Same Reduction Rate of β2-microglobulin. Kidney Int Rep 2019. [DOI: 10.1016/j.ekir.2019.05.888] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
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Kashiwagi N, Hyodo T, Ishi K, Maenishi O, Enoki E, Chikugo T, Masakatsu T, Yagyu Y, Kitano M, Tomiyama N. Spontaneously infarcted parotid tumours: MRI findings. Dentomaxillofac Radiol 2019; 48:20180382. [PMID: 30706736 DOI: 10.1259/dmfr.20180382] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
OBJECTIVES To report MRI findings of spontaneous infarction in parotid tumours. METHODS 14 patients (13 male, 1 female; mean age 73 years) with spontaneously infarcted parotid tumours were reviewed retrospectively. MR images were assessed for the location, the presence of synchronous parotid masses, margin characteristics, signal intensity on T 1 and T 2 weighted images, and internal architecture according to the distribution of T 2 signal hyperintensity. RESULTS 12 tumours were located in the parotid tail and 2 in the superficial lobe. Synchronous parotid masses were seen in four tumours, three of which were located in the ipsilateral parotid tail and one in the contralateral parotid tail. Seven tumours had well-defined margins and seven had ill-defined margins. The signal intensities on T 1 weighted images were a mixture of high and intermediate in all cases; in 11 tumours, hyperintense areas were dominant. On T 2 weighted images, all tumours also showed a mixture of high and intermediate signal intensities. Internal architectures on T 2 weighted images were mosaic hyperintensity in three tumours, central hyperintensity in five, and multiseparated hyperintensity in six. CONCLUSIONS Spontaneously infarcted parotid tumours were mostly located in the parotid tail and showed mixed signal intensities with predominant hyperintensity on T 1 weighted images. Half of the tumours had ill-defined margins, and the internal architectures varied.
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Affiliation(s)
- Nobuo Kashiwagi
- 1 Department of Radiology, Kindai University Faculty of Medicine , Osaka-sayama, Osaka , Japan
| | - Tomoko Hyodo
- 1 Department of Radiology, Kindai University Faculty of Medicine , Osaka-sayama, Osaka , Japan
| | - Kazunari Ishi
- 1 Department of Radiology, Kindai University Faculty of Medicine , Osaka-sayama, Osaka , Japan
| | - Osamu Maenishi
- 2 Department of Pathology, Kindai University Faculty of Medicine , Osaka-sayama, Osaka , Japan
| | - Eisuke Enoki
- 2 Department of Pathology, Kindai University Faculty of Medicine , Osaka-sayama, Osaka , Japan
| | - Takaaki Chikugo
- 2 Department of Pathology, Kindai University Faculty of Medicine , Osaka-sayama, Osaka , Japan
| | - Tsurusaki Masakatsu
- 1 Department of Radiology, Kindai University Faculty of Medicine , Osaka-sayama, Osaka , Japan
| | - Yukinobu Yagyu
- 1 Department of Radiology, Kindai University Faculty of Medicine , Osaka-sayama, Osaka , Japan
| | - Mutsukazu Kitano
- 3 Department of Otolaryngology, Kindai University Faculty of Medicine , Osaka-sayama, Osaka , Japan
| | - Noriyuki Tomiyama
- 4 Department of Radiology, Osaka University Graduate School of Medicine , Osaka-sayama, Osaka , Japan
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Sofue K, Tsurusaki M, Mileto A, Hyodo T, Sasaki K, Nishii T, Chikugo T, Yada N, Kudo M, Sugimura K, Murakami T. Dual-energy computed tomography for non-invasive staging of liver fibrosis: Accuracy of iodine density measurements from contrast-enhanced data. Hepatol Res 2018; 48:1008-1019. [PMID: 29908040 DOI: 10.1111/hepr.13205] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/12/2018] [Revised: 06/07/2018] [Accepted: 07/06/2018] [Indexed: 02/08/2023]
Abstract
AIM To investigate whether iodine density measurements from contrast-enhanced dual-energy computed tomography (CT) data can non-invasively stage liver fibrosis. METHODS This single-center, prospective study was approved by our IRB with written informed consent. Forty-seven consecutive patients (26 men and 21 women; mean age, 63.1 years) with chronic liver disease underwent contrast-enhanced dual-energy CT of the liver (non-contrast, arterial, portal venous, and equilibrium phase images), followed by liver biopsy. Iodine density of liver and aorta were obtained by two independent observers. Iodine uptake of the liver (Δ Liver), representing the difference in iodine density between equilibrium phase and non-contrast images, was calculated and normalized by aorta (Δ Liver/Aorta). We accounted for contrast agent distribution volume by using hematocrit level. Accuracy of iodine density measurements for staging liver fibrosis was assessed by using receiver operating characteristic (ROC) curves. Multivariate linear regression analysis was used to assess the impact of independent variables (liver fibrosis stage and patient-related confounders) on iodine uptake. RESULTS The Δ Liver/Aorta significantly increased and moderately correlated with METAVIR liver fibrosis stage (ρ = 0.645, P < 0.001). Areas under the ROC curve ranged from 0.795 to 0.855 for discriminating each liver fibrosis score (≥F1-F4). METAVIR fibrosis stage was the most significant independent factor associated with Δ Liver (P = 0.005) and Δ Liver/Aorta (P < 0.001). CONCLUSION Hepatic extracellular volume fraction with contrast-enhanced dual-energy CT can non-invasively stage liver fibrosis in chronic liver diseases. This technique could prove useful for monitoring disease progression and treatment response, potentially reducing the need for liver biopsy.
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Affiliation(s)
- Keitaro Sofue
- Department of Radiology, Kindai University Faculty of Medicine, Osaka-Sayama, Japan.,Department of Radiology, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Masakatsu Tsurusaki
- Department of Radiology, Kindai University Faculty of Medicine, Osaka-Sayama, Japan
| | - Achille Mileto
- Department of Radiology, University of Washington School of Medicine, Seattle, Washington, USA
| | - Tomoko Hyodo
- Department of Radiology, Kindai University Faculty of Medicine, Osaka-Sayama, Japan
| | | | - Tatsuya Nishii
- Department of Radiology, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Takaaki Chikugo
- Department of Pathology, Kindai University Faculty of Medicine, Osaka-Sayama, Japan
| | - Norihisa Yada
- Department of Gastroenterology and Hepatology, Kindai University Faculty of Medicine, Osaka, Japan
| | - Masatoshi Kudo
- Department of Gastroenterology and Hepatology, Kindai University Faculty of Medicine, Osaka, Japan
| | - Kazuro Sugimura
- Department of Radiology, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Takamichi Murakami
- Department of Radiology, Kindai University Faculty of Medicine, Osaka-Sayama, Japan
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Kashiwagi N, Nakatsuka SI, Murakami T, Enoki E, Yamamoto K, Nakanishi K, Chikugo T, Kurisu Y, Kimura M, Hyodo T, Tsukabe A, Kakigi T, Tomita Y, Ishii K, Narumi Y, Yagyu Y, Tomiyama N. MR imaging features of mammary analogue secretory carcinoma and acinic cell carcinoma of the salivary gland: a preliminary report. Dentomaxillofac Radiol 2018; 47:20170218. [PMID: 29493279 DOI: 10.1259/dmfr.20170218] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
OBJECTIVES To report MR imaging features of mammary analogue secretory carcinoma (MASC) and acinic cell carcinoma (AciCC) of the salivary gland based on the latest version of the World Health Organization (WHO) 2017 classification of head and neck tumours. METHODS MR images in 4 patients with MASC and 4 with AciCC were reviewed for margin characteristics, the presence of pathological cervical nodes, the presence of a cystic component and interface between cystic and solid component, signal intensity of the cystic components on T1 weighted images, and signal intensity of the solid component on T1 and T2 weighted images. RESULTS All the MASCs and AciCCs had well-defined boundaries, and 1 AciCC had pathological nodes. All 4 MASCs presented as predominantly cystic tumours with papillary projection of the solid component. All 4 AciCCs presented as solid tumours. The signal intensity of the cystic components on T1 weighted images was entirely hyperintense in 2, and partly hyperintense demonstrating fluid-fluid level in 2. In all the MASCs, the signal intensity of the solid components on T1 weighted images was intermediate. In the AciCCs, the signal intensity of the solid components on T1 weighted images was high in 2 tumours and intermediate in 2. The signal intensity of the solid components on T2 weighted images varied from low to high in both MSACs and AciCCs. CONCLUSIONS All 4 MASCs had a large cystic component, including areas of high signal intensity on T1 weighted images. The solid component appeared as a papillary projection into the cystic component. All 4 AciCCs presented as solid tumours, 2 of which showed high signal intensity on T1 weighted images.
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Affiliation(s)
- Nobuo Kashiwagi
- 1 Department of Radiology, Kindai University Faculty of Medicine , Osaka-Sayama , Japan
| | - Shin Ichi Nakatsuka
- 2 Department of Diagnostic Pathology and Cytology, Osaka International Cancer Institute , Osaka , Japan
| | - Takamichi Murakami
- 1 Department of Radiology, Kindai University Faculty of Medicine , Osaka-Sayama , Japan
| | - Eisuke Enoki
- 3 Department of Pathology, Kindai University Faculty of Medicine , Osaka-Sayama , Japan
| | - Kazuhiro Yamamoto
- 4 Department of Radioligy, Osaka Medical College , Takatsuki , Japan
| | - Katsuyuki Nakanishi
- 5 Department of Diagnostic and Interventional Radiology, Osaka International Cancer Institute , Osaka , Japan
| | - Takaaki Chikugo
- 3 Department of Pathology, Kindai University Faculty of Medicine , Osaka-Sayama , Japan
| | - Yoshitaka Kurisu
- 6 Department of Pathology, Osaka Medical College , Takatsuki , Japan
| | - Masatomo Kimura
- 3 Department of Pathology, Kindai University Faculty of Medicine , Osaka-Sayama , Japan
| | - Tomoko Hyodo
- 1 Department of Radiology, Kindai University Faculty of Medicine , Osaka-Sayama , Japan
| | - Akio Tsukabe
- 5 Department of Diagnostic and Interventional Radiology, Osaka International Cancer Institute , Osaka , Japan
| | - Takahide Kakigi
- 7 Department of Radiology, Yamatotakada Municipal Hospital , Yamatotakada , Japan
| | - Yasuhiko Tomita
- 8 Department of pathology, International University of Health and Welfare, School of Medicine , Otawara , Japan
| | - Kazunari Ishii
- 1 Department of Radiology, Kindai University Faculty of Medicine , Osaka-Sayama , Japan
| | - Yoshifumi Narumi
- 4 Department of Radioligy, Osaka Medical College , Takatsuki , Japan
| | - Yukinobu Yagyu
- 1 Department of Radiology, Kindai University Faculty of Medicine , Osaka-Sayama , Japan
| | - Noriyuki Tomiyama
- 9 Department of Radiology, Osaka University Graduate School of Medicine , Suita , Japan
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Shimomura K, Araki F, Kono Y, Asai Y, Murakami T, Hyodo T, Okumura M, Matsumoto K, Monzen H, Nishimura Y. Identification of elemental weight fraction and mass density of humanoid tissue-equivalent materials using dual energy computed tomography. Phys Med 2017. [DOI: 10.1016/j.ejmp.2017.05.060] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
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Fukui H, Kashiwagi N, Murakami T, Watanabe Y, Hyodo T, Ishi K, Yamakawa M, Takahashi H, Tomiyama N. Enlargement of the infraorbital canal following Caldwell-Luc surgery. Jpn J Radiol 2017; 35:532-538. [PMID: 28653228 DOI: 10.1007/s11604-017-0663-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2017] [Accepted: 06/15/2017] [Indexed: 10/19/2022]
Abstract
OBJECTIVES The infraorbital canal (IOC), which runs in the roof of the maxillary sinus, is a useful anatomical landmark for the infraorbital nerve (ION) on computed tomography (CT) images. Enlargement of the IOC on CT images is thought to be a pathological state that usually affects the ION. However, we have frequently observed enlargement of the IOC in patients with a history of radical surgery of the maxillary sinus: so-called Caldwell-Luc (CL) surgery. In this study, the size of the IOC of the maxillary sinus was compared between patients with a history of CL surgery (post-CL IOCs) and those with no history of CL surgery (control IOCs). METHODS A total of 347 consecutive patients who underwent facial CT from January 2014 to October 2014 for various indications were evaluated. After excluding groove-type IOCs and IOCs with pathological lesions that could affect their diameters, 47 post-CL IOCs in 26 patients were finally compared with 504 control IOCs in 252 patients. To evaluate IOC size, the short-axis diameter of the IOC was measured on a reconstructed coronal image at the level of the posterior pole of the eyeball. RESULTS The short-axis diameters of the post-CL IOCs and control IOCs were 3.0 ± 0.6 and 1.4 ± 0.3 mm, respectively (p < 0.005). CONCLUSIONS The short-axis diameters of post-CL IOCs are significantly enlarged (approximately double the diameter) compared to those of control IOCs.
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Affiliation(s)
- Hideyuki Fukui
- Faculty of Medicine, Department of Radiology, Kindai University, 377-2 Ohno-Higashi, Osakasayama City, Osaka, 589-8511, Japan.
| | - Nobuo Kashiwagi
- Faculty of Medicine, Department of Radiology, Kindai University, 377-2 Ohno-Higashi, Osakasayama City, Osaka, 589-8511, Japan
| | - Takamichi Murakami
- Faculty of Medicine, Department of Radiology, Kindai University, 377-2 Ohno-Higashi, Osakasayama City, Osaka, 589-8511, Japan
| | - Yoshiyuki Watanabe
- Department of Radiology, Graduate School of Medicine, Osaka University, 2-2 Yamadaoka, Suita City, Osaka, 565-0825, Japan
| | - Tomoko Hyodo
- Faculty of Medicine, Department of Radiology, Kindai University, 377-2 Ohno-Higashi, Osakasayama City, Osaka, 589-8511, Japan
| | - Kazunari Ishi
- Faculty of Medicine, Department of Radiology, Kindai University, 377-2 Ohno-Higashi, Osakasayama City, Osaka, 589-8511, Japan
| | - Miho Yamakawa
- Faculty of Medicine, Department of Radiology, Kindai University, 377-2 Ohno-Higashi, Osakasayama City, Osaka, 589-8511, Japan
| | - Hirito Takahashi
- Department of Radiology, Graduate School of Medicine, Osaka University, 2-2 Yamadaoka, Suita City, Osaka, 565-0825, Japan
| | - Noriyuki Tomiyama
- Department of Radiology, Graduate School of Medicine, Osaka University, 2-2 Yamadaoka, Suita City, Osaka, 565-0825, Japan
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Toguchi M, Tsurusaki M, Yada N, Sofue K, Hyodo T, Onoda M, Numoto I, Matsuki M, Imaoka I, Kudo M, Murakami T. Magnetic resonance elastography in the assessment of hepatic fibrosis: a study comparing transient elastography and histological data in the same patients. Abdom Radiol (NY) 2017; 42:1659-1666. [PMID: 28144720 DOI: 10.1007/s00261-017-1045-3] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
PURPOSE To evaluate the quantitative measurement of liver stiffness (LS), compare the diagnostic performance of magnetic resonance elastography (MRE) and ultrasound-based transient elastography (TE), and evaluate two different MRE-based LS measurement methods. METHODS Between October 2013 and January 2015, 116 consecutive patients with chronic liver disease underwent MRE to measure LS (kilopascals; kPa). Of the 116 patients, 51 patients underwent both TE and liver biopsy, and the interval between the liver biopsy and both the MRE and TE was less than 90 days. MRE-derived LS values were measured on the anterior segment of the right lobe (single small round regions of interest per slice; srROIs) and whole right lobe of the liver (free hand region of interest; fhROI), and these values were correlated with pathological fibrosis grades and diagnostic performance. RESULTS Pathological fibrosis stage was significantly correlated with srROIs (r = 0.87, p < 0.001), fhROI (r = 0.80, p < 0.001), and TE (r = 0.73, p < 0.001). For detection of significant fibrosis (≥F2), advanced fibrosis (≥F3), and cirrhosis, the area under the curve (AUC) associated with the srROIs was largest, and there was a significant difference between srROIs and TE (0.93 vs. 0.82, p = 0.006), srROIs and fhROI (0.93 vs. 0.89, p = 0.04) for detection of ≥F2. For advanced fibrosis and cirrhosis detection, AUCs were not significant (0.92-0.96). CONCLUSIONS MRE and TE detected liver fibrosis with comparable accuracy. In particular, the srROIs method was effective for detecting of significant fibrosis.
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Hyodo T, Yada N, Hori M, Maenishi O, Lamb P, Sasaki K, Onoda M, Kudo M, Mochizuki T, Murakami T. Multimaterial Decomposition Algorithm for the Quantification of Liver Fat Content by Using Fast-Kilovolt-Peak Switching Dual-Energy CT: Clinical Evaluation. Radiology 2017; 283:108-118. [PMID: 28212047 DOI: 10.1148/radiol.2017160130] [Citation(s) in RCA: 62] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Purpose To assess the clinical accuracy and reproducibility of liver fat quantification with the multimaterial decomposition (MMD) algorithm, comparing the performance of MMD with that of magnetic resonance (MR) spectroscopy by using liver biopsy as the reference standard. Materials and Methods This prospective study was approved by the institutional ethics committee, and patients provided written informed consent. Thirty-three patients suspected of having hepatic steatosis underwent non-contrast material-enhanced and triple-phase dynamic contrast-enhanced dual-energy computed tomography (CT) (80 and 140 kVp) and single-voxel proton MR spectroscopy within 30 days before liver biopsy. Percentage fat volume fraction (FVF) images were generated by using the MMD algorithm on dual-energy CT data to measure hepatic fat content. FVFs determined by using dual-energy CT and percentage fat fractions (FFs) determined by using MR spectroscopy were compared with histologic steatosis grade (0-3, as defined by the nonalcoholic fatty liver disease activity score system) by using Jonckheere-Terpstra trend tests and were compared with each other by using Bland-Altman analysis. Real non-contrast-enhanced FVFs were compared with triple-phase contrast-enhanced FVFs to determine the reproducibility of MMD by using Bland-Altman analyses. Results Both dual-energy CT FVF and MR spectroscopy FF increased with increasing histologic steatosis grade (trend test, P < .001 for each). The Bland-Altman plot of dual-energy CT FVF and MR spectroscopy FF revealed a proportional bias, as indicated by the significant positive slope of the line regressing the difference on the average (P < .001). The 95% limits of agreement for the differences between real non-contrast-enhanced and contrast-enhanced FVFs were not greater than about 2%. Conclusion The MMD algorithm quantifying hepatic fat in dual-energy CT images is accurate and reproducible across imaging phases. © RSNA, 2017 Online supplemental material is available for this article.
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Affiliation(s)
- Tomoko Hyodo
- From the Departments of Radiology (T.H., T. Murakami), Gastroenterology and Hepatology (N.Y., M.K.), and Pathology (O.M.), Kindai University Faculty of Medicine, 377-2 Ohno-Higashi, Osaka-Sayama, Osaka 589-8511, Japan; Department of Radiology, Osaka University Graduate School of Medicine, Suita, Japan (M.H.); GE Healthcare Japan CT Research Group, Hino, Japan (K.S.); GE Global Research, Niskayuna, NY (P.L.); Department of Radiological Technology, Kanazawa University Hospital, Kanazawa, Japan (M.O.); and Department of Diagnostic and Therapeutic Radiology, Ehime University Graduate School of Medicine, Toon, Japan (T.H., T. Mochizuki)
| | - Norihisa Yada
- From the Departments of Radiology (T.H., T. Murakami), Gastroenterology and Hepatology (N.Y., M.K.), and Pathology (O.M.), Kindai University Faculty of Medicine, 377-2 Ohno-Higashi, Osaka-Sayama, Osaka 589-8511, Japan; Department of Radiology, Osaka University Graduate School of Medicine, Suita, Japan (M.H.); GE Healthcare Japan CT Research Group, Hino, Japan (K.S.); GE Global Research, Niskayuna, NY (P.L.); Department of Radiological Technology, Kanazawa University Hospital, Kanazawa, Japan (M.O.); and Department of Diagnostic and Therapeutic Radiology, Ehime University Graduate School of Medicine, Toon, Japan (T.H., T. Mochizuki)
| | - Masatoshi Hori
- From the Departments of Radiology (T.H., T. Murakami), Gastroenterology and Hepatology (N.Y., M.K.), and Pathology (O.M.), Kindai University Faculty of Medicine, 377-2 Ohno-Higashi, Osaka-Sayama, Osaka 589-8511, Japan; Department of Radiology, Osaka University Graduate School of Medicine, Suita, Japan (M.H.); GE Healthcare Japan CT Research Group, Hino, Japan (K.S.); GE Global Research, Niskayuna, NY (P.L.); Department of Radiological Technology, Kanazawa University Hospital, Kanazawa, Japan (M.O.); and Department of Diagnostic and Therapeutic Radiology, Ehime University Graduate School of Medicine, Toon, Japan (T.H., T. Mochizuki)
| | - Osamu Maenishi
- From the Departments of Radiology (T.H., T. Murakami), Gastroenterology and Hepatology (N.Y., M.K.), and Pathology (O.M.), Kindai University Faculty of Medicine, 377-2 Ohno-Higashi, Osaka-Sayama, Osaka 589-8511, Japan; Department of Radiology, Osaka University Graduate School of Medicine, Suita, Japan (M.H.); GE Healthcare Japan CT Research Group, Hino, Japan (K.S.); GE Global Research, Niskayuna, NY (P.L.); Department of Radiological Technology, Kanazawa University Hospital, Kanazawa, Japan (M.O.); and Department of Diagnostic and Therapeutic Radiology, Ehime University Graduate School of Medicine, Toon, Japan (T.H., T. Mochizuki)
| | - Peter Lamb
- From the Departments of Radiology (T.H., T. Murakami), Gastroenterology and Hepatology (N.Y., M.K.), and Pathology (O.M.), Kindai University Faculty of Medicine, 377-2 Ohno-Higashi, Osaka-Sayama, Osaka 589-8511, Japan; Department of Radiology, Osaka University Graduate School of Medicine, Suita, Japan (M.H.); GE Healthcare Japan CT Research Group, Hino, Japan (K.S.); GE Global Research, Niskayuna, NY (P.L.); Department of Radiological Technology, Kanazawa University Hospital, Kanazawa, Japan (M.O.); and Department of Diagnostic and Therapeutic Radiology, Ehime University Graduate School of Medicine, Toon, Japan (T.H., T. Mochizuki)
| | - Kosuke Sasaki
- From the Departments of Radiology (T.H., T. Murakami), Gastroenterology and Hepatology (N.Y., M.K.), and Pathology (O.M.), Kindai University Faculty of Medicine, 377-2 Ohno-Higashi, Osaka-Sayama, Osaka 589-8511, Japan; Department of Radiology, Osaka University Graduate School of Medicine, Suita, Japan (M.H.); GE Healthcare Japan CT Research Group, Hino, Japan (K.S.); GE Global Research, Niskayuna, NY (P.L.); Department of Radiological Technology, Kanazawa University Hospital, Kanazawa, Japan (M.O.); and Department of Diagnostic and Therapeutic Radiology, Ehime University Graduate School of Medicine, Toon, Japan (T.H., T. Mochizuki)
| | - Minori Onoda
- From the Departments of Radiology (T.H., T. Murakami), Gastroenterology and Hepatology (N.Y., M.K.), and Pathology (O.M.), Kindai University Faculty of Medicine, 377-2 Ohno-Higashi, Osaka-Sayama, Osaka 589-8511, Japan; Department of Radiology, Osaka University Graduate School of Medicine, Suita, Japan (M.H.); GE Healthcare Japan CT Research Group, Hino, Japan (K.S.); GE Global Research, Niskayuna, NY (P.L.); Department of Radiological Technology, Kanazawa University Hospital, Kanazawa, Japan (M.O.); and Department of Diagnostic and Therapeutic Radiology, Ehime University Graduate School of Medicine, Toon, Japan (T.H., T. Mochizuki)
| | - Masatoshi Kudo
- From the Departments of Radiology (T.H., T. Murakami), Gastroenterology and Hepatology (N.Y., M.K.), and Pathology (O.M.), Kindai University Faculty of Medicine, 377-2 Ohno-Higashi, Osaka-Sayama, Osaka 589-8511, Japan; Department of Radiology, Osaka University Graduate School of Medicine, Suita, Japan (M.H.); GE Healthcare Japan CT Research Group, Hino, Japan (K.S.); GE Global Research, Niskayuna, NY (P.L.); Department of Radiological Technology, Kanazawa University Hospital, Kanazawa, Japan (M.O.); and Department of Diagnostic and Therapeutic Radiology, Ehime University Graduate School of Medicine, Toon, Japan (T.H., T. Mochizuki)
| | - Teruhito Mochizuki
- From the Departments of Radiology (T.H., T. Murakami), Gastroenterology and Hepatology (N.Y., M.K.), and Pathology (O.M.), Kindai University Faculty of Medicine, 377-2 Ohno-Higashi, Osaka-Sayama, Osaka 589-8511, Japan; Department of Radiology, Osaka University Graduate School of Medicine, Suita, Japan (M.H.); GE Healthcare Japan CT Research Group, Hino, Japan (K.S.); GE Global Research, Niskayuna, NY (P.L.); Department of Radiological Technology, Kanazawa University Hospital, Kanazawa, Japan (M.O.); and Department of Diagnostic and Therapeutic Radiology, Ehime University Graduate School of Medicine, Toon, Japan (T.H., T. Mochizuki)
| | - Takamichi Murakami
- From the Departments of Radiology (T.H., T. Murakami), Gastroenterology and Hepatology (N.Y., M.K.), and Pathology (O.M.), Kindai University Faculty of Medicine, 377-2 Ohno-Higashi, Osaka-Sayama, Osaka 589-8511, Japan; Department of Radiology, Osaka University Graduate School of Medicine, Suita, Japan (M.H.); GE Healthcare Japan CT Research Group, Hino, Japan (K.S.); GE Global Research, Niskayuna, NY (P.L.); Department of Radiological Technology, Kanazawa University Hospital, Kanazawa, Japan (M.O.); and Department of Diagnostic and Therapeutic Radiology, Ehime University Graduate School of Medicine, Toon, Japan (T.H., T. Mochizuki)
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Hyodo T, Hori M, Lamb P, Sasaki K, Wakayama T, Chiba Y, Mochizuki T, Murakami T. Multimaterial Decomposition Algorithm for the Quantification of Liver Fat Content by Using Fast-Kilovolt-Peak Switching Dual-Energy CT: Experimental Validation. Radiology 2017; 282:381-389. [DOI: 10.1148/radiol.2016160129] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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Scheiwein FT, Ishii K, Hosokawa C, Kaida H, Hyodo T, Hanaoka K, Brendel M, Bartenstein P, Rominger A, Murakami T. Regional Differences in Amyloid Deposition between 11C-Pib PET Positive Patients with and without Elevated Striatal Amyloid Uptake. ACTA ACUST UNITED AC 2017. [DOI: 10.4172/2161-0460.1000317] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Iida S, Wada K, Mochizuki I, Tachibana T, Yamashita T, Hyodo T, Nagashima Y. Emission of low-energy positronium from alkali-metal coated single-crystal tungsten surfaces. J Phys Condens Matter 2016; 28:475002. [PMID: 27662111 DOI: 10.1088/0953-8984/28/47/475002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
We have measured the time-of-flight of ortho-positronium emitted from Cs-, Na- and Li-coated single-crystal tungsten surfaces. The data obtained after the coating show a new positronium energy component with a specific energy loss in addition to the component whose emission energy is simply determined by the positron and the electron work functions. We suggest that this new component is attributed to the formation of positronium accompanied by inter-band transition and/or surface plasmon excitation at the surfaces.
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Affiliation(s)
- S Iida
- Department of Physics, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku, Tokyo, 162-8601, Japan
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Kitajima Y, Haga S, Mikami N, Hyodo T. MON-P113: The Feedback Method on Pre-Dialysis Blood Glucose Level and the Basic Carbohydrate Counting for Diabetic Hemodialysis Patients. Clin Nutr 2016. [DOI: 10.1016/s0261-5614(16)30747-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Inoue T, Hyodo T, Korenaga K, Murakami T, Imai Y, Higaki A, Suda T, Takano T, Miyoshi K, Koda M, Tanaka H, Iijima H, Ochi H, Hirooka M, Numata K, Kudo M. Kupffer phase image of Sonazoid-enhanced US is useful in predicting a hypervascularization of non-hypervascular hypointense hepatic lesions detected on Gd-EOB-DTPA-enhanced MRI: a multicenter retrospective study. J Gastroenterol 2016; 51:144-52. [PMID: 26373860 DOI: 10.1007/s00535-015-1094-8] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/26/2014] [Accepted: 06/06/2015] [Indexed: 02/07/2023]
Abstract
BACKGROUND It remains unknown whether Kupffer-phase images in Sonazoid-enhanced ultrasonography (US) can be used to predict hypervascularization of borderline lesions. Therefore, we aimed to clarify whether Kupffer-phase images in Sonazoid-enhanced ultrasonography can predict subsequent hypervascularization in hypovascular borderline lesions detected on hepatobiliary-phase gadolinium-ethoxybenzyl-diethylenetriamine pentaacetic acid (Gd-EOB-DTPA)-enhanced magnetic resonance imaging. METHODS From January 2008 to March 2012, 616 low-intensity hypovascular nodules were detected in hepatobiliary-phase images of Gd-EOB-DTPA-enhanced MRI at nine institutions. Among these, 167 nodules, which were confirmed as hypovascular by Gd-EOB-DTPA-enhanced MRI and Sonazoid-enhanced US, were evaluated in this study. Potential hypervascularization factors were selected based on their clinical significance and the results of previous reports. The Kaplan-Meier model and log-rank test were used for univariate analysis and the Cox regression model was used for multivariate analysis. RESULTS The cumulative incidence of hypervascularization of borderline lesions was 18, 37, and 43 % at 1, 2, and 3 years, respectively. Univariate analyses showed that tumor size (p = 0.0012) and hypoperfusion on Kupffer-phase images in Sonazoid-enhanced US (p = 0.004) were associated with hypervascularization of the tumor. Multivariate analysis showed that tumor size [HR: 1.086, 95 % confidence interval = 1.027-1.148, p = 0.004] and hypo perfusion on Kupffer-phase images [HR: 3.684, 95 % confidence interval = 1.798-7.546, p = 0.0004] were significantly different. CONCLUSIONS Kupffer-phase images in Sonazoid-enhanced US and tumor diameter can predict hypervascularization of hypointense borderline lesions detected on hepatobiliary-phase Gd-EOB-DTPA-enhanced MRI.
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Affiliation(s)
- Tatsuo Inoue
- Department of Gastroenterology and Hepatology, Kinki University School of Medicine, 377-2, Ohno-Higashi, Osaka-Sayama, 589-8511, Osaka, Japan.
| | - Tomoko Hyodo
- Department of Diagnostic Radiology, Kinki University School of Medicine, 377-2, Ohno-Higashi, Osaka-Sayama, 589-8511, Osaka, Japan
| | - Keiko Korenaga
- Department of Hepatology and Pancreatology, Kawasaki Medical School, Kurashiki, Japan
- Department of Gastroenterology and Hepatology, Kohnodai Hospital, National Center for Global Health and Medicine, Chiba, Japan
| | - Takamichi Murakami
- Department of Diagnostic Radiology, Kinki University School of Medicine, 377-2, Ohno-Higashi, Osaka-Sayama, 589-8511, Osaka, Japan
| | - Yasuharu Imai
- Department of Gastroenterology, Ikeda Municipal Hospital, Osaka, Japan
| | - Atsushi Higaki
- Department of Hepatology and Pancreatology, Kawasaki Medical School, Kurashiki, Japan
| | - Takeshi Suda
- Division of Gastroenterology and Hepatology, Graduate School of Medical and Dental Sciences, Niigata University, Niigata, Japan
| | - Toru Takano
- Division of Radiation Oncology, Graduate School of Medical and Dental Sciences, Niigata University, Niigata, Japan
| | - Kennichi Miyoshi
- Division of Medicine and Clinical Science, Department of Multidisciplinary Internal Medicine, Tottori University, Tottori, Japan
| | - Masahiko Koda
- Division of Medicine and Clinical Science, Department of Multidisciplinary Internal Medicine, Tottori University, Tottori, Japan
| | - Hironori Tanaka
- Ultrasound Imaging Center, Hyogo College of Medicine, Nishinomiya, Japan
- Division of Hepatobiliary and Pancreatic Disease, Department of Internal Medicine, Hyogo College of Medicine, Nishinomiya, Japan
| | - Hiroko Iijima
- Ultrasound Imaging Center, Hyogo College of Medicine, Nishinomiya, Japan
| | - Hironori Ochi
- Department of Gastroenterology and Metabology, Ehime University Graduate School of Medicine, Matsuyama, Japan
| | - Masashi Hirooka
- Department of Gastroenterology and Metabology, Ehime University Graduate School of Medicine, Matsuyama, Japan
| | - Kazushi Numata
- Gastroenterological Center, Yokohama City University Medical Center, Yokohama, Japan
| | - Masatoshi Kudo
- Department of Gastroenterology and Hepatology, Kinki University School of Medicine, 377-2, Ohno-Higashi, Osaka-Sayama, 589-8511, Osaka, Japan.
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Mochizuki I, Ariga H, Fukaya Y, Wada K, Maekawa M, Kawasuso A, Shidara T, Asakura K, Hyodo T. Structure determination of the rutile-TiO2(110)-(1 × 2) surface using total-reflection high-energy positron diffraction (TRHEPD). Phys Chem Chem Phys 2016; 18:7085-92. [DOI: 10.1039/c5cp07892j] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
Detailed structure of the rutile-TiO2(110)-(1 × 2) has been determined using the newly developed technique of total-reflection high-energy positron diffraction (TRHEPD).
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Affiliation(s)
- I. Mochizuki
- Institute of Materials Structure Science
- High Energy Accelerator Research Organization (KEK)
- Ibaraki 305-0801
- Japan
| | - H. Ariga
- Institute for Catalysis
- Hokkaido University
- Sapporo
- Japan
| | - Y. Fukaya
- Advanced Science Research Center
- Japan Atomic Energy Agency
- Naka
- Japan
| | - K. Wada
- Institute of Materials Structure Science
- High Energy Accelerator Research Organization (KEK)
- Ibaraki 305-0801
- Japan
| | - M. Maekawa
- Quantum Beam Science Directorate
- Japan Atomic Energy Agency
- Takasaki
- Japan
| | - A. Kawasuso
- Quantum Beam Science Directorate
- Japan Atomic Energy Agency
- Takasaki
- Japan
| | - T. Shidara
- Accelerator Laboratory
- High Energy Accelerator Research Organization (KEK)
- Tsukuba
- Japan
| | - K. Asakura
- Institute for Catalysis
- Hokkaido University
- Sapporo
- Japan
| | - T. Hyodo
- Institute of Materials Structure Science
- High Energy Accelerator Research Organization (KEK)
- Ibaraki 305-0801
- Japan
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Hosokawa C, Ishii K, Kimura Y, Hyodo T, Hosono M, Sakaguchi K, Usami K, Shimamoto K, Yamazoe Y, Murakami T. Performance of 11C-Pittsburgh Compound B PET Binding Potential Images in the Detection of Amyloid Deposits on Equivocal Static Images. J Nucl Med 2015; 56:1910-5. [DOI: 10.2967/jnumed.115.156414] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2015] [Accepted: 08/31/2015] [Indexed: 11/16/2022] Open
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Kitajima Y, Mikami N, Hida M, Hyodo T. MON-PP131: The Effect of Basic Carbohydrate Counting for Diabetic Dialysis Patients in Japan; Including Investigation on the Awareness of Nutrients that Affect Blood Glucose Levels by Dialysis Staff and Diabetic Dialysis Patients. Clin Nutr 2015. [DOI: 10.1016/s0261-5614(15)30563-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Im S, Ashikaga R, Yagyu Y, Wakayama T, Miyoshi M, Hyodo T, Imaoka I, Kumano S, Ishii K, Murakami T. Contrast enhancement of intracranial lesions at 1.5 T: comparison among 2D spin echo, black-blood (BB) Cube, and BB Cube-FLAIR sequences. Eur Radiol 2015; 25:3175-86. [PMID: 25929942 DOI: 10.1007/s00330-015-3757-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2014] [Revised: 03/02/2015] [Accepted: 03/31/2015] [Indexed: 10/23/2022]
Abstract
OBJECTIVES The purpose of this study was to investigate the usefulness of T1W black-blood Cube (BB Cube) and T1W BB Cube fluid-attenuated inversion recovery (BB Cube-FLAIR) sequences for contrast-enhanced brain imaging, by evaluating flow-related artefacts, detectability, and contrast ratio (CR) of intracranial lesions among these sequences and T1W-SE. METHODS Phantom studies were performed to determine the optimal parameters of BB Cube and BB Cube-FLAIR. A clinical study in 23 patients with intracranial lesions was performed to evaluate the usefulness of these two sequences for the diagnosis of intracranial lesions compared with the conventional 2D T1W-SE sequence. RESULTS The phantom study revealed that the optimal parameters for contrast-enhanced T1W imaging were TR/TE = 500 ms/minimum in BB Cube and TR/TE/TI = 600 ms/minimum/300 ms in BB Cube-FLAIR imaging. In the clinical study, the degree of flow-related artefacts was significantly lower in BB Cube and BB Cube-FLAIR than in T1W-SE. Regarding tumour detection, BB Cube showed the best detectability; however, there were no significant differences in CR among the sequences. CONCLUSIONS At 1.5 T, contrast-enhanced BB Cube was a better imaging sequence for detecting brain lesions than T1W-SE or BB Cube-FLAIR. KEY POINTS • Cube is a single-slab 3D FSE imaging sequence. • We applied a black-blood (BB) imaging technique to T1W Cube. • At 1.5 T, contrast-enhanced T1W BB Cube was valuable for detecting brain lesions.
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Affiliation(s)
- SungWoon Im
- Department of Radiology, Kinki University Faculty of Medicine, 377-2 Ohno-Higashi, Osaka-Sayama, Osaka, 589-8511, Japan.
| | - Ryuichiro Ashikaga
- Department of Radiology, Kinki University Faculty of Medicine, 377-2 Ohno-Higashi, Osaka-Sayama, Osaka, 589-8511, Japan
| | - Yukinobu Yagyu
- Department of Radiology, Kinki University Faculty of Medicine, 377-2 Ohno-Higashi, Osaka-Sayama, Osaka, 589-8511, Japan
| | - Tetsuya Wakayama
- MR Applications and Workflow, Asia Pacific, GE Healthcare Japan, 4-7-127, Asahigaoka, Hino, 191-8503, Tokyo, Japan
| | - Mitsuharu Miyoshi
- MR Applications and Workflow, Asia Pacific, GE Healthcare Japan, 4-7-127, Asahigaoka, Hino, 191-8503, Tokyo, Japan
| | - Tomoko Hyodo
- Department of Radiology, Kinki University Faculty of Medicine, 377-2 Ohno-Higashi, Osaka-Sayama, Osaka, 589-8511, Japan
| | - Izumi Imaoka
- Department of Radiology, Kinki University Faculty of Medicine, 377-2 Ohno-Higashi, Osaka-Sayama, Osaka, 589-8511, Japan
| | - Seishi Kumano
- Department of Radiology, Kinki University Faculty of Medicine, 377-2 Ohno-Higashi, Osaka-Sayama, Osaka, 589-8511, Japan
| | - Kazunari Ishii
- Department of Radiology, Kinki University Faculty of Medicine, 377-2 Ohno-Higashi, Osaka-Sayama, Osaka, 589-8511, Japan
| | - Takamichi Murakami
- Department of Radiology, Kinki University Faculty of Medicine, 377-2 Ohno-Higashi, Osaka-Sayama, Osaka, 589-8511, Japan
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Onoda M, Hyodo T, Murakami T, Okada M, Uto T, Hori M, Miyati T. Optimizing signal intensity correction during evaluation of hepatic parenchymal enhancement on gadoxetate disodium-enhanced MRI: Comparison of three methods. Eur J Radiol 2015; 84:339-345. [DOI: 10.1016/j.ejrad.2014.11.014] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2014] [Revised: 11/08/2014] [Accepted: 11/18/2014] [Indexed: 10/24/2022]
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Koiwahara G, Tsuda T, Matsuda M, Hirata M, Tanaka H, Hyodo T, Kido T, Mochizuki T. Different enhancement of the hepatic parenchyma in dynamic CT for patients with normal liver and chronic liver diseases and with the dose of contrast medium based on body surface area. Jpn J Radiol 2015; 33:194-200. [PMID: 25673431 DOI: 10.1007/s11604-015-0398-1] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2014] [Accepted: 01/26/2015] [Indexed: 12/11/2022]
Abstract
PURPOSE The purpose of this study was to characterize hepatic parenchymal enhancement for normal and diseased liver in dynamic computed tomography (CT) with the dose of contrast medium calculated on the basis of body surface area (BSA). MATERIALS AND METHODS The records of 328 consecutive patients who underwent triple-phase contrast-enhanced CT were retrospectively reviewed. The patients were divided into four groups: normal liver (n = 125), chronic hepatitis (CH) (n = 92), Child-Pugh grade A liver cirrhosis (LC-A) (n = 78), and Child-Pugh grade B liver cirrhosis (LC-B) (n = 33). All patients received 22 g I m(-2) as contrast material, calculated on the basis of BSA. CT values were measured in the region of interest during the pre-contrast, arterial, and portal phases, and the change in the CT value (ΔHU, where HU is Hounsfield units) compared with pre-contrast images was calculated. RESULTS Mean ΔHU for the hepatic parenchyma for the normal liver, CH, LC-A, and LC-B groups during the portal phase was 55.5 ± 11.8 HU, 55.2 ± 12.5 HU, 50.0 ± 13.0 HU, and 43.0 ± 12.7 HU, respectively; generalized estimating equation analysis showed the differences were significant (p < 0.01). CONCLUSION Hepatic parenchymal enhancement during the portal phase decreased as the severity of chronic liver damage increased.
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Affiliation(s)
- Gen Koiwahara
- Department of Radiology, Ehime University Graduate School of Medicine, 454 Shitukawa, Toon, Ehime, 791-0925, Japan,
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Saito F, Yotoriyama T, Nishiyama I, Suzuki Y, Goto A, Nagashima Y, Hyodo T. Characterization of ion-irradiated poly-L-lactic acid using nano-cutting. Phys Chem Chem Phys 2014; 16:26991-6. [PMID: 25380102 DOI: 10.1039/c4cp02763a] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Effects on the mechanical strength of poly-L-lactic acid (PLLA) upon irradiation with 150 keV He(+) ion were studied. Changes in the irradiated surface were investigated using a surface texture and contour measuring instrument and an atomic force microscope. Observations made with the atomic force microscope revealed that the irradiated surface subsided significantly as the fluence increased. In order to investigate the dependence on fluence of the depth of the Bragg peak for the ion implantation, the cutting strength, Σ, was analysed [F. Saito, I. Nishiyama and T. Hyodo, Mater. Lett., 2012, 66, 144-146]; this value is an indicator of the strength of a material against cutting, and is obtained from the cutting resistance. The averaged ion projected range increased from about 1.1 μm for a fluence of 1 × 10(15) He(+)/cm(2) to about 4 μm for a fluence of 1 × 10(16) He(+)/cm(2). The density of the region following irradiation was estimated using a combination of cutting resistance measurements and positron annihilation γ ray Doppler broadening measurements made with an energy-variable positron beam. The density decreased from the value of 1.27 g cm(-3) to about 0.6 g cm(-3) after irradiation with a fluence of 3 × 10(15) He(+)/cm(2). By considering the decrease in the density and the subsidence of the surface, it is concluded that only 30% of the original weight remained in the irradiated region after exposure to the He(+) ions. Anisotropic change in the cutting resistance suggests that mechanical strength in the direction normal to the surface increased while that in the lateral direction decreased.
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Affiliation(s)
- F Saito
- Graduate School of Arts and Sciences, The University of Tokyo, 3-8-1 Komaba, Meguro, Tokyo 153-8902, Japan
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Ishii K, Hosokawa C, Hyodo T, Sakaguchi K, Usami K, Shimamoto K, Hosono M, Yamazoe Y, Murakami T. Regional glucose metabolic reduction in dementia with Lewy bodies is independent of amyloid deposition. Ann Nucl Med 2014; 29:78-83. [PMID: 25270712 PMCID: PMC4835511 DOI: 10.1007/s12149-014-0911-0] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2014] [Accepted: 09/21/2014] [Indexed: 11/29/2022]
Abstract
Purpose There is evidence that some cases of patients with dementia with Lewy bodies (DLB) can demonstrate Alzheimer disease (AD) like reduced glucose metabolism without amyloid deposition. The aim of this study was to clarify whether regional hypometabolism is related to amyloid deposits in the DLB brain and measure the degree of regional hypometabolism. Methods Ten consecutive subjects with DLB and 10 AD patients who underwent both Pittsburgh compound B (PiB)-PET and 18F-fluoro-2-deoxyglucose (FDG)-PET were included in this study. Regional standardized uptake value ratio (SUVR)s normalised to cerebellar cortices were calculated in the FDG- and PiB-PET images. Results All AD patients and five DLB patients showed amyloid deposits (PiB positive). In the DLB group the parietotemporal and occipital metabolism were significantly lower than those in the AD group but there was no difference between the posterior cingulate hypometabolism between DLB and AD groups. There were no differences in regional glucose metabolism between PiB positive and negative DLB patients. Conclusions In the DLB brain, it is suggested that decreased regional glucose metabolism is unrelated to amyloid deposits, although the hypometabolic area overlaps with the AD hypometabolic area and the degree of parietotemporal and occipital hypometabolism in DLB brain is much larger than that in AD brain.
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Affiliation(s)
- Kazunari Ishii
- Neurocognitive Disorders Center, Kinki University Hospital, 377-2 Ohnohigashi, Osakasayama, Osaka, 589-8511, Japan,
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Fukaya Y, Maekawa M, Mochizuki I, Wada K, Hyodo T, Kawasuso A. Reflection high-energy positron diffraction study on the first surface layer. ACTA ACUST UNITED AC 2014. [DOI: 10.1088/1742-6596/505/1/012005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Hyodo T, Fukaya Y, Maekawa M, Mochizuki I, Wada K, Shidara T, Ichimiya A, Kawasuso A. Total reflection high-energy positron diffraction (TRHEPD). ACTA ACUST UNITED AC 2014. [DOI: 10.1088/1742-6596/505/1/012001] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Takahashi H, Okada M, Hyodo T, Hidaka S, Kagawa Y, Matsuki M, Tsurusaki M, Murakami T. Can low-dose CT with iterative reconstruction reduce both the radiation dose and the amount of iodine contrast medium in a dynamic CT study of the liver? Eur J Radiol 2014; 83:684-91. [DOI: 10.1016/j.ejrad.2013.12.014] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2013] [Revised: 11/11/2013] [Accepted: 12/13/2013] [Indexed: 11/16/2022]
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Okada M, Wakayama T, Yada N, Hyodo T, Numata K, Kagawa Y, Nishiyama D, Miyakoshi K, Murakami T. Optimal flip angle of Gd-EOB-DTPA-enhanced MRI in patients with hepatocellular carcinoma and liver metastasis. ACTA ACUST UNITED AC 2014; 39:694-701. [DOI: 10.1007/s00261-014-0096-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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Kamata K, Kitano M, Kudo M, Sakamoto H, Kadosaka K, Miyata T, Imai H, Maekawa K, Chikugo T, Kumano M, Hyodo T, Murakami T, Chiba Y, Takeyama Y. Value of EUS in early detection of pancreatic ductal adenocarcinomas in patients with intraductal papillary mucinous neoplasms. Endoscopy 2014; 46:22-9. [PMID: 24218310 DOI: 10.1055/s-0033-1353603] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
BACKGROUND AND STUDY AIMS Pancreatic ductal adenocarcinomas (PDAC) sometimes arise in patients with intraductal papillary mucinous neoplasms (IPMNs). This study examined the incidence of PDACs concomitant to or derived from branch duct IPMNs. The usefulness of endoscopic ultrasonography (EUS) relative to other imaging methods for detecting these tumors was also assessed. PATIENTS AND METHODS This retrospective study used data from clinical records and imaging studies that were collected prospectively. During 2001-2009, 167 consecutive patients with IPMNs underwent EUS, ultrasonography, computed tomography (CT), and magnetic resonance imaging (MRI). The 102 patients whose branch duct IPMNs lacked mural nodules/symptoms and thus did not qualify for resection were followed up by semiannual EUS and annual ultrasonography, CT, and MRI. The sensitivity and specificity with which the four modalities detected IPMN-derived and -concomitant PDACs at the first examination and throughout the study period were evaluated. The rate of PDAC development during follow-up was analyzed by the Kaplan-Meier method. RESULTS A total of 17 IPMN-derived and 11 IPMN-concomitant PDACs were diagnosed at the first examination. Lesions that did not qualify for resection or chemotherapy were followed up for a median of 42 months. Seven IPMN-concomitant PDACs and no IPMN-derived PDACs were detected during follow-up. The 3- and 5-year rates of IPMN-concomitant PDAC development were 4.0% and 8.8%, respectively. At the first examination, EUS was superior to other imaging modalities in terms of IPMN-derived and -concomitant PDAC detection. Throughout the study period, including follow-up, EUS was significantly better at detecting IPMN-concomitant PDACs than the other modalities. CONCLUSIONS IPMN-concomitant PDACs are quite often found at diagnosis and during follow-up. EUS examination of the whole pancreas plays an important role in the management of IPMNs as it allows the early detection of these small invasive carcinomas.
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MESH Headings
- Adenocarcinoma/diagnostic imaging
- Adenocarcinoma/pathology
- Adenocarcinoma, Mucinous/diagnostic imaging
- Adenocarcinoma, Mucinous/pathology
- Adenocarcinoma, Papillary/diagnostic imaging
- Adenocarcinoma, Papillary/pathology
- Adult
- Aged
- Aged, 80 and over
- Carcinoma, Pancreatic Ductal/diagnostic imaging
- Carcinoma, Pancreatic Ductal/pathology
- Early Detection of Cancer/methods
- Endosonography
- Female
- Humans
- Magnetic Resonance Imaging
- Male
- Middle Aged
- Neoplasms, Multiple Primary/diagnostic imaging
- Neoplasms, Multiple Primary/pathology
- Pancreatic Neoplasms/diagnostic imaging
- Pancreatic Neoplasms/pathology
- Retrospective Studies
- Sensitivity and Specificity
- Tomography, X-Ray Computed
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Affiliation(s)
- Ken Kamata
- Department of Gastroenterology and Hepatology, Kinki University Faculty of Medicine, Osaka-sayama, Japan
| | - Masayuki Kitano
- Department of Gastroenterology and Hepatology, Kinki University Faculty of Medicine, Osaka-sayama, Japan
| | - Masatoshi Kudo
- Department of Gastroenterology and Hepatology, Kinki University Faculty of Medicine, Osaka-sayama, Japan
| | - Hiroki Sakamoto
- Department of Gastroenterology and Hepatology, Kinki University Faculty of Medicine, Osaka-sayama, Japan
| | - Kumpei Kadosaka
- Department of Gastroenterology and Hepatology, Kinki University Faculty of Medicine, Osaka-sayama, Japan
| | - Takeshi Miyata
- Department of Gastroenterology and Hepatology, Kinki University Faculty of Medicine, Osaka-sayama, Japan
| | - Hajime Imai
- Department of Gastroenterology and Hepatology, Kinki University Faculty of Medicine, Osaka-sayama, Japan
| | - Kiyoshi Maekawa
- Section of Abdominal Ultrasound, Kinki University Faculty of Medicine, Osaka-sayama, Japan
| | - Takaaki Chikugo
- Department of Pathology, Kinki University Faculty of Medicine, Osaka-sayama, Japan
| | - Masashi Kumano
- Department of Radiology, Kinki University Faculty of Medicine, Osaka-sayama, Japan
| | - Tomoko Hyodo
- Department of Radiology, Kinki University Faculty of Medicine, Osaka-sayama, Japan
| | - Takamichi Murakami
- Department of Radiology, Kinki University Faculty of Medicine, Osaka-sayama, Japan
| | - Yasutaka Chiba
- Division of Biostatistics, Clinical Research Center, Kinki University Faculty of Medicine, Osaka-sayama, Japan
| | - Yoshifumi Takeyama
- Department of Surgery, Kinki University Faculty of Medicine, Osaka-sayama, Japan
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Murakami T, Tsurusaki M, Hyodo T, Imai Y. Clinical utility of imaging for evaluation of hepatocellular carcinoma. J Hepatocell Carcinoma 2014; 1:101-8. [PMID: 27508179 PMCID: PMC4918268 DOI: 10.2147/jhc.s48602] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
The hemodynamics of a hepatocellular nodule is the most important imaging parameter used to characterize various hepatocellular nodules in liver cirrhosis, because sequential changes occur in the feeding vessels and hemodynamic status during hepatocarcinogenesis. Therefore, the imaging criteria for hepatocellular carcinoma (HCC) are also usually based on vascular findings, eg, early arterial uptake followed by washout in the portal venous and equilibrium phases. Contrast-enhanced ultrasonography, dynamic multidetector-row computed tomography (MDCT), and dynamic magnetic resonance (MR) imaging with gadopentetate dimeglumine (Gd-DTPA) are useful for detecting hypervascular HCC on the basis of vascular criteria but are not as useful for hypovascular HCC. Contrast-enhanced MR imaging with gadolinium ethoxybenzyl diethylenetriamine pentaacetic acid (Gd-EOB-DTPA), a hepatocyte-specific MR contrast agent, is superior to dynamic MDCT and dynamic MR imaging with Gd-DTPA in detecting both hypervascular and hypovascular HCC. Moreover, Gd-EOB-DTPA-enhanced MR imaging can display each histologically differentiated HCC as hypointense relative to the liver parenchyma. 18F-fluorodeoxyglucose positron emission tomography imaging might not be suitable for the screening and detection of HCC, given its lower diagnostic performance. However, this technique plays an important role in determining whether HCC has spread beyond the liver.
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Affiliation(s)
- Takamichi Murakami
- Department of Radiology, Kinki University Faculty of Medicine, Osaka, Japan
| | | | - Tomoko Hyodo
- Department of Radiology, Kinki University Faculty of Medicine, Osaka, Japan
| | - Yasuharu Imai
- Department of Hepatology and Gastroenterology, Ikeda Municipal Hospital, Osaka, Japan
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Okada M, Murakami T, Yada N, Numata K, Onoda M, Hyodo T, Inoue T, Ishii K, Kudo M. Comparison between T1 relaxation time of Gd-EOB-DTPA-enhanced MRI and liver stiffness measurement of ultrasound elastography in the evaluation of cirrhotic liver. J Magn Reson Imaging 2013; 41:329-38. [DOI: 10.1002/jmri.24529] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2013] [Accepted: 11/18/2013] [Indexed: 01/22/2023] Open
Affiliation(s)
- Masahiro Okada
- Department of Radiology; Kinki University Faculty of Medicine; Osaka Japan
| | - Takamichi Murakami
- Department of Radiology; Kinki University Faculty of Medicine; Osaka Japan
| | - Norihisa Yada
- Department of Gastroenterology and Hepatology; Kinki University Faculty of Medicine; Osaka Japan
| | - Kazushi Numata
- Gastroenterological Center; Yokohama City University Medical Center; Yokohama Japan
| | - Minori Onoda
- Department of Radiology; Kinki University Faculty of Medicine; Osaka Japan
| | - Tomoko Hyodo
- Department of Radiology; Kinki University Faculty of Medicine; Osaka Japan
| | - Tatsuo Inoue
- Department of Gastroenterology and Hepatology; Kinki University Faculty of Medicine; Osaka Japan
| | - Kazunari Ishii
- Department of Radiology; Kinki University Faculty of Medicine; Osaka Japan
| | - Masatoshi Kudo
- Department of Gastroenterology and Hepatology; Kinki University Faculty of Medicine; Osaka Japan
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Takahashi H, Ishii K, Hosokawa C, Hyodo T, Kashiwagi N, Matsuki M, Ashikaga R, Murakami T. Clinical application of 3D arterial spin-labeled brain perfusion imaging for Alzheimer disease: comparison with brain perfusion SPECT. AJNR Am J Neuroradiol 2013; 35:906-11. [PMID: 24263694 DOI: 10.3174/ajnr.a3780] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE Alzheimer disease is the most common neurodegenerative disorder with dementia, and a practical and economic biomarker for diagnosis of Alzheimer disease is needed. Three-dimensional arterial spin-labeling, with its high signal-to-noise ratio, enables measurement of cerebral blood flow precisely without any extrinsic tracers. We evaluated the performance of 3D arterial spin-labeling compared with SPECT, and demonstrated the 3D arterial spin-labeled imaging characteristics in the diagnosis of Alzheimer disease. MATERIALS AND METHODS This study included 68 patients with clinically suspected Alzheimer disease who underwent both 3D arterial spin-labeling and SPECT imaging. Two readers independently assessed both images. Kendall W coefficients of concordance (K) were computed, and receiver operating characteristic analyses were performed for each reader. The differences between the images in regional perfusion distribution were evaluated by means of statistical parametric mapping, and the incidence of hypoperfusion of the cerebral watershed area, referred to as "borderzone sign" in the 3D arterial spin-labeled images, was determined. RESULTS Readers showed K = 0.82/0.73 for SPECT/3D arterial spin-labeled imaging, and the respective areas under the receiver operating characteristic curve were 0.82/0.69 for reader 1 and 0.80/0.69 for reader 2. Statistical parametric mapping showed that the perisylvian and medial parieto-occipital perfusion in the arterial spin-labeled images was significantly higher than that in the SPECT images. Borderzone sign was observed on 3D arterial spin-labeling in 70% of patients misdiagnosed with Alzheimer disease. CONCLUSIONS The diagnostic performance of 3D arterial spin-labeling and SPECT for Alzheimer disease was almost equivalent. Three-dimensional arterial spin-labeled imaging was more influenced by hemodynamic factors than was SPECT imaging.
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Affiliation(s)
- H Takahashi
- From the Department of Radiology, Kinki University Faculty of Medicine, Osaka-Sayama, Japan.
| | - K Ishii
- From the Department of Radiology, Kinki University Faculty of Medicine, Osaka-Sayama, Japan
| | - C Hosokawa
- From the Department of Radiology, Kinki University Faculty of Medicine, Osaka-Sayama, Japan
| | - T Hyodo
- From the Department of Radiology, Kinki University Faculty of Medicine, Osaka-Sayama, Japan
| | - N Kashiwagi
- From the Department of Radiology, Kinki University Faculty of Medicine, Osaka-Sayama, Japan
| | - M Matsuki
- From the Department of Radiology, Kinki University Faculty of Medicine, Osaka-Sayama, Japan
| | - R Ashikaga
- From the Department of Radiology, Kinki University Faculty of Medicine, Osaka-Sayama, Japan
| | - T Murakami
- From the Department of Radiology, Kinki University Faculty of Medicine, Osaka-Sayama, Japan
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Matsukubo Y, Kashiwagi N, Uemura M, Tatsumi S, Takahashi H, Hyodo T, Tomiyama N, Ashikaga R, Ishii K, Murakami T. Intravertebral pneumatocysts of the cervical spine. Neuroradiology 2013; 55:1341-4. [DOI: 10.1007/s00234-013-1279-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2013] [Accepted: 08/28/2013] [Indexed: 10/26/2022]
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Wada K, Hyodo T, Kosuge T, Saito Y, Ikeda M, Ohsawa S, Shidara T, Michishio K, Tachibana T, Terabe H, Suzuki RH, Nagashima Y, Fukaya Y, Maekawa M, Mochizuki I, Kawasuso A. New experiment stations at KEK Slow Positron Facility. ACTA ACUST UNITED AC 2013. [DOI: 10.1088/1742-6596/443/1/012082] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Hyodo T, Murakami T, Imai Y, Okada M, Hori M, Kagawa Y, Kogita S, Kumano S, Kudo M, Mochizuki T. Hypovascular nodules in patients with chronic liver disease: risk factors for development of hypervascular hepatocellular carcinoma. Radiology 2013; 266:480-90. [PMID: 23362095 DOI: 10.1148/radiol.12112677] [Citation(s) in RCA: 112] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
PURPOSE To identify patient characteristics and magnetic resonance (MR) imaging findings associated with subsequent hypervascularization in hypovascular nodules that show hypointensity on hepatobiliary phase gadoxetic acid-enhanced MR images in patients with chronic liver diseases. MATERIALS AND METHODS Institutional review board approval was obtained, and informed consent was waived. At multiple follow-up gadoxetic acid-enhanced MR imaging examinations of 68 patients, 160 hypovascular nodules were retrospectively reviewed. A Cox regression model for hypervascularization was developed to explore the association of baseline characteristics, including patient factors (Child-Pugh classification, etiology of liver disease, history of local therapy for hepatocellular carcinoma [HCC], and coexistence of hypervascular HCC) and MR imaging findings (fat content, signal intensity on T2-weighted images, and nodule size). In addition, the growth rate was calculated as the reciprocal of tumor volume doubling time to investigate its relationship with subsequent hypervascularization by using receiver operating characteristic and Kaplan-Meier analyses. RESULTS The prevalence of subsequent hypervascularization was 31% (50 of 160 nodules). Independent Cox multivariable predictors of increased risk of hypervascularization were hyperintensity on T2-weighted images (hazard ratio [HR] = 8.7; 95% confidence interval [CI]: 3.6, 20.8), previous local therapy for hypervascular HCC (HR = 5.0; 95% CI: 1.8, 13.6), Child-Pugh B cirrhosis (HR = 3.6; 95% CI: 1.4, 9.5) and coexistence of hypervascular HCC (HR = 2.0; 95% CI: 1.0, 3.8). The mean growth rate was significantly higher in nodules that showed subsequent hypervascularization than in those without hypervascularization. Kaplan-Meier analysis based on the receiver operating characteristic cutoff level (1.8 × 10(-3)/day [tumor volume doubling time, 542 days]) showed that nodules with a higher growth rate had a significantly higher incidence of hypervascularization (P = 5.2 × 10(-8), log-rank test). CONCLUSION Hyperintensity on T2-weighted images is an independent and strong risk factor at baseline for subsequent hypervascularization in hypovascular nodules in patients with chronic liver disease. Tumor volume doubling time of less than 542 days was associated with a high rate of subsequent hypervascularization.
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Affiliation(s)
- Tomoko Hyodo
- Department of Radiology and Internal Medicine, Kinki University Faculty of Medicine, 377-2 Ohno-Higashi, Osaka-Sayama, Osaka 589-8511, Japan
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Inoue T, Hyodo T, Murakami T, Takayama Y, Nishie A, Higaki A, Korenaga K, Sakamoto A, Osaki Y, Aikata H, Chayama K, Suda T, Takano T, Miyoshi K, Koda M, Numata K, Tanaka H, Iijima H, Ochi H, Hirooka M, Imai Y, Kudo M. Hypovascular hepatic nodules showing hypointense on the hepatobiliary-phase image of Gd-EOB-DTPA-enhanced MRI to develop a hypervascular hepatocellular carcinoma: a nationwide retrospective study on their natural course and risk factors. Dig Dis 2013; 31:472-9. [PMID: 24281023 DOI: 10.1159/000355248] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
OBJECTIVE We aimed to investigate the natural outcome of nonhypervascular lesions detected in the hepatobiliary phase of gadolinium ethoxybenzyl diethylenetriamine pentaacetic acid (Gd-EOB-DTPA)-enhanced MRI by performing a longitudinal study retrospectively enrolled in a nationwide manner. METHODS Between February 2008 and March 2011, 224 patients with 504 nodules that were diagnosed as nonhypervascular by imaging were recruited from institutions that participated in the present study. We examined the natural outcome of nonhypervascular lesions and evaluated the risk factors. RESULTS Of the 504 nodules, 173 (34.3%) showed hypervascular transformation. The overall cumulative incidence of hypervascular transformation was 14.9% at 12 months and 45.8% at 24 months. Multivariate analysis using the Cox regression model revealed previous treatment history for hepatocellular carcinoma (HCC; relative risk = 1.498; p = 0.036, 95% CI 1.03-2.19) and hyperintensity on T2-weighted images (relative risk = 1.724; p = 0.015, 95% CI 1.11-2.67) were identified as independent factors for hypervascular transformation. CONCLUSIONS Patients who have a previous treatment history for HCC and with hypointense nodules showing hyperintensity on T2-weighted images need careful follow-up because of the high incidence of hypervascular transformation.
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Affiliation(s)
- Tatsuo Inoue
- Department of Gastroenterology and Hepatology, Kinki University, Osakasayama, Japan
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Inoue T, Kudo M, Komuta M, Hayaishi S, Ueda T, Takita M, Kitai S, Hatanaka K, Yada N, Hagiwara S, Chung H, Sakurai T, Ueshima K, Sakamoto M, Maenishi O, Hyodo T, Okada M, Kumano S, Murakami T. Assessment of Gd-EOB-DTPA-enhanced MRI for HCC and dysplastic nodules and comparison of detection sensitivity versus MDCT. J Gastroenterol 2012; 47:1036-47. [PMID: 22526270 DOI: 10.1007/s00535-012-0571-6] [Citation(s) in RCA: 73] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/14/2011] [Accepted: 02/13/2012] [Indexed: 02/04/2023]
Abstract
BACKGROUND We aimed to evaluate gadolinium ethoxybenzyl diethylenetriamine pentaacetic acid (Gd-EOB-DTPA)-enhanced magnetic resonance imaging (MRI) for the detection of hepatocellular carcinomas (HCCs) and dysplastic nodules (DNs) compared with dynamic multi-detector row computed tomography (MDCT), and to discriminate between HCCs and DNs. METHODS Eighty-six nodules diagnosed as HCC or DNs were retrospectively investigated. Gd-EOB-DTPA-enhanced MRI and dynamic MDCT were compared with respect to their diagnostic ability for hypervascular HCCs and detection sensitivity for hypovascular tumors. The ability of hepatobiliary images of Gd-EOB-DTPA-enhanced MRI to discriminate between these nodules was assessed. We also calculated the EOB enhancement ratio of the tumors. RESULTS For hypervascular HCCs, the diagnostic ability of Gd-EOB-DTPA-enhanced MRI was significantly higher than that of MDCT for tumors less than 2 cm (p = 0.048). There was no difference in the detection of hypervascular HCCs between hepatobiliary phase images of Gd-EOB-DTPA-enhanced MRI (43/45: 96%) and dynamic MDCT (40/45: 89%), whereas the detection sensitivity of hypovascular tumors by Gd-EOB-DTPA-enhanced MRI was significantly higher than that by dynamic MDCT (39/41: 95% vs. 25/41: 61%, p = 0.001). EOB enhancement ratios were decreased in parallel with the degree of differentiation in DNs and HCCs, although there was no difference between DNs and hypovascular well-differentiated HCCs. CONCLUSION The diagnostic ability of Gd-EOB-DTPA-enhanced MRI for hypervascular HCCs less than 2 cm was significantly higher than that of MDCT. For hypovascular tumors, the detection sensitivity of hepatobiliary phase images of Gd-EOB-DTPA-enhanced MRI was significantly higher than that of dynamic Gd-EOB-DTPA-enhanced MRI and dynamic MDCT. It was difficult to distinguish between DNs and hypovascular well-differentiated HCCs based on the EOB enhancement ratio.
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Affiliation(s)
- Tatsuo Inoue
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Kinki University Faculty of Medicine, 377-2 Ohno-Higashi, Osaka-Sayama, Osaka 589-8511, Japan
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Cardiovascular complications in CKD 5D. Nephrol Dial Transplant 2012. [DOI: 10.1093/ndt/gfs225] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Hyodo T, Kumano S, Kushihata F, Okada M, Hirata M, Tsuda T, Takada Y, Mochizuki T, Murakami T. CT and MR cholangiography: advantages and pitfalls in perioperative evaluation of biliary tree. Br J Radiol 2012; 85:887-96. [PMID: 22422383 DOI: 10.1259/bjr/21209407] [Citation(s) in RCA: 82] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Recent developments in imaging technology have enabled CT and MR cholangiopancreatography (MRCP) to provide minimally invasive alternatives to endoscopic retrograde cholangiopancreatography for the pre- and post-operative assessment of biliary disease. This article describes anatomical variants of the biliary tree with surgical significance, followed by comparison of CT and MR cholangiographies. Drip infusion cholangiography with CT (DIC-CT) enables high-resolution three-dimensional anatomical representation of very small bile ducts (e.g. aberrant branches, the caudate branch and the cystic duct), which are potential causes of surgical complications. The disadvantages of DIC-CT include the possibility of adverse reactions to biliary contrast media and insufficient depiction of bile ducts caused by liver dysfunction or obstructive jaundice. Conventional MRCP is a standard, non-invasive method for evaluating the biliary tree. MRCP provides useful information, especially regarding the extrahepatic bile ducts and dilated intrahepatic bile ducts. Gadolinium ethoxybenzyl diethylenetriamine pentaacetic acid-enhanced MRCP may facilitate the evaluation of biliary structure and excretory function. Understanding the characteristics of each type of cholangiography is important to ensure sufficient perioperative evaluation of the biliary system.
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Affiliation(s)
- T Hyodo
- Department of Radiology, Kinki University Faculty of Medicine, Osaka-Sayama, Osaka, Japan.
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