Preliminary study on evaluation of the pancreatic tail observable limit of transabdominal ultrasonography using a position sensor and CT-fusion image

Hajime Sumi, Akihiro Itoh, Hiroki Kawashima, Eizaburo Ohno, Yuya Itoh, Yosuke Nakamura, Takeshi Hiramatsu, Hiroyuki Sugimoto, Daijuro Hayashi, Takamichi Kuwahara, Tomomasa Morishima, Manabu Kawai, Kazuhiro Furukawa, Kohei Funasaka, Masanao Nakamura, Ryoji Miyahara, Yoshiaki Katano, Masatoshi Ishigami, Naoki Omiya, Hidemi GotoYoshiki Hirooka

研究成果: Article

8 引用 (Scopus)

抄録

Background and aim Transabdominal ultrasonography (US) is commonly used for the initial screening of bilio-pancreatic diseases in Asian countries due to its widespread availability, the non-invasiveness and the cost-effectiveness. However, it is considered that US has limits to observe the area, namely the blind area. The observation of the pancreatic tail is particularly difficult. The goal of this study was to examine the pancreatic tail region that cannot be visualized on transverse scanning of the upper abdomen using US with spatial positional information and factors related to visualization, and observation of the tail from the splenic hilum. Methods Thirty-nine patients with pancreatic/biliary tract disease underwent CT and US with GPS-like technology and fusion imaging for measurement of the real pancreatic length and the predicted/real unobservable (PU and RU) length of the pancreatic tail. RU from US on transverse scanning and the real pancreatic length were used to determine the unobservable area (UA: RU/the real pancreatic length). Relationships of RU with physical and hematological variables that might influence visualization of the pancreatic tail were investigated. Results The real pancreatic length was 160.9 ± 16.4 mm, RU was 41.0 ± 17.8 mm, and UA was 25.3 ± 10.4%. RU was correlated with BMI (R = 0.446, P = 0.004) and waist circumferences (R = 0.354, P = 0.027), and strongly correlated with PU (R = 0.788, P < 0.001). The pancreatic tail was visible from the splenic hilum in 22 (56%) subjects and was completely identified in 13 (33%) subjects. Conclusions Combined GPS-like technology with fusion imaging was useful for the objective estimation of the pancreatic blind area.

元の言語English
ページ(範囲)1324-1331
ページ数8
ジャーナルEuropean Journal of Radiology
83
発行部数8
DOI
出版物ステータスPublished - 01-01-2014

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Ultrasonography
Observation
Biliary Tract Diseases
Technology
Pancreatic Diseases
Waist Circumference
Abdomen
Cost-Benefit Analysis

All Science Journal Classification (ASJC) codes

  • Radiology Nuclear Medicine and imaging

これを引用

Sumi, Hajime ; Itoh, Akihiro ; Kawashima, Hiroki ; Ohno, Eizaburo ; Itoh, Yuya ; Nakamura, Yosuke ; Hiramatsu, Takeshi ; Sugimoto, Hiroyuki ; Hayashi, Daijuro ; Kuwahara, Takamichi ; Morishima, Tomomasa ; Kawai, Manabu ; Furukawa, Kazuhiro ; Funasaka, Kohei ; Nakamura, Masanao ; Miyahara, Ryoji ; Katano, Yoshiaki ; Ishigami, Masatoshi ; Omiya, Naoki ; Goto, Hidemi ; Hirooka, Yoshiki. / Preliminary study on evaluation of the pancreatic tail observable limit of transabdominal ultrasonography using a position sensor and CT-fusion image. :: European Journal of Radiology. 2014 ; 巻 83, 番号 8. pp. 1324-1331.
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title = "Preliminary study on evaluation of the pancreatic tail observable limit of transabdominal ultrasonography using a position sensor and CT-fusion image",
abstract = "Background and aim Transabdominal ultrasonography (US) is commonly used for the initial screening of bilio-pancreatic diseases in Asian countries due to its widespread availability, the non-invasiveness and the cost-effectiveness. However, it is considered that US has limits to observe the area, namely the blind area. The observation of the pancreatic tail is particularly difficult. The goal of this study was to examine the pancreatic tail region that cannot be visualized on transverse scanning of the upper abdomen using US with spatial positional information and factors related to visualization, and observation of the tail from the splenic hilum. Methods Thirty-nine patients with pancreatic/biliary tract disease underwent CT and US with GPS-like technology and fusion imaging for measurement of the real pancreatic length and the predicted/real unobservable (PU and RU) length of the pancreatic tail. RU from US on transverse scanning and the real pancreatic length were used to determine the unobservable area (UA: RU/the real pancreatic length). Relationships of RU with physical and hematological variables that might influence visualization of the pancreatic tail were investigated. Results The real pancreatic length was 160.9 ± 16.4 mm, RU was 41.0 ± 17.8 mm, and UA was 25.3 ± 10.4{\%}. RU was correlated with BMI (R = 0.446, P = 0.004) and waist circumferences (R = 0.354, P = 0.027), and strongly correlated with PU (R = 0.788, P < 0.001). The pancreatic tail was visible from the splenic hilum in 22 (56{\%}) subjects and was completely identified in 13 (33{\%}) subjects. Conclusions Combined GPS-like technology with fusion imaging was useful for the objective estimation of the pancreatic blind area.",
author = "Hajime Sumi and Akihiro Itoh and Hiroki Kawashima and Eizaburo Ohno and Yuya Itoh and Yosuke Nakamura and Takeshi Hiramatsu and Hiroyuki Sugimoto and Daijuro Hayashi and Takamichi Kuwahara and Tomomasa Morishima and Manabu Kawai and Kazuhiro Furukawa and Kohei Funasaka and Masanao Nakamura and Ryoji Miyahara and Yoshiaki Katano and Masatoshi Ishigami and Naoki Omiya and Hidemi Goto and Yoshiki Hirooka",
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Sumi, H, Itoh, A, Kawashima, H, Ohno, E, Itoh, Y, Nakamura, Y, Hiramatsu, T, Sugimoto, H, Hayashi, D, Kuwahara, T, Morishima, T, Kawai, M, Furukawa, K, Funasaka, K, Nakamura, M, Miyahara, R, Katano, Y, Ishigami, M, Omiya, N, Goto, H & Hirooka, Y 2014, 'Preliminary study on evaluation of the pancreatic tail observable limit of transabdominal ultrasonography using a position sensor and CT-fusion image', European Journal of Radiology, 巻. 83, 番号 8, pp. 1324-1331. https://doi.org/10.1016/j.ejrad.2014.05.009

Preliminary study on evaluation of the pancreatic tail observable limit of transabdominal ultrasonography using a position sensor and CT-fusion image. / Sumi, Hajime; Itoh, Akihiro; Kawashima, Hiroki; Ohno, Eizaburo; Itoh, Yuya; Nakamura, Yosuke; Hiramatsu, Takeshi; Sugimoto, Hiroyuki; Hayashi, Daijuro; Kuwahara, Takamichi; Morishima, Tomomasa; Kawai, Manabu; Furukawa, Kazuhiro; Funasaka, Kohei; Nakamura, Masanao; Miyahara, Ryoji; Katano, Yoshiaki; Ishigami, Masatoshi; Omiya, Naoki; Goto, Hidemi; Hirooka, Yoshiki.

:: European Journal of Radiology, 巻 83, 番号 8, 01.01.2014, p. 1324-1331.

研究成果: Article

TY - JOUR

T1 - Preliminary study on evaluation of the pancreatic tail observable limit of transabdominal ultrasonography using a position sensor and CT-fusion image

AU - Sumi, Hajime

AU - Itoh, Akihiro

AU - Kawashima, Hiroki

AU - Ohno, Eizaburo

AU - Itoh, Yuya

AU - Nakamura, Yosuke

AU - Hiramatsu, Takeshi

AU - Sugimoto, Hiroyuki

AU - Hayashi, Daijuro

AU - Kuwahara, Takamichi

AU - Morishima, Tomomasa

AU - Kawai, Manabu

AU - Furukawa, Kazuhiro

AU - Funasaka, Kohei

AU - Nakamura, Masanao

AU - Miyahara, Ryoji

AU - Katano, Yoshiaki

AU - Ishigami, Masatoshi

AU - Omiya, Naoki

AU - Goto, Hidemi

AU - Hirooka, Yoshiki

PY - 2014/1/1

Y1 - 2014/1/1

N2 - Background and aim Transabdominal ultrasonography (US) is commonly used for the initial screening of bilio-pancreatic diseases in Asian countries due to its widespread availability, the non-invasiveness and the cost-effectiveness. However, it is considered that US has limits to observe the area, namely the blind area. The observation of the pancreatic tail is particularly difficult. The goal of this study was to examine the pancreatic tail region that cannot be visualized on transverse scanning of the upper abdomen using US with spatial positional information and factors related to visualization, and observation of the tail from the splenic hilum. Methods Thirty-nine patients with pancreatic/biliary tract disease underwent CT and US with GPS-like technology and fusion imaging for measurement of the real pancreatic length and the predicted/real unobservable (PU and RU) length of the pancreatic tail. RU from US on transverse scanning and the real pancreatic length were used to determine the unobservable area (UA: RU/the real pancreatic length). Relationships of RU with physical and hematological variables that might influence visualization of the pancreatic tail were investigated. Results The real pancreatic length was 160.9 ± 16.4 mm, RU was 41.0 ± 17.8 mm, and UA was 25.3 ± 10.4%. RU was correlated with BMI (R = 0.446, P = 0.004) and waist circumferences (R = 0.354, P = 0.027), and strongly correlated with PU (R = 0.788, P < 0.001). The pancreatic tail was visible from the splenic hilum in 22 (56%) subjects and was completely identified in 13 (33%) subjects. Conclusions Combined GPS-like technology with fusion imaging was useful for the objective estimation of the pancreatic blind area.

AB - Background and aim Transabdominal ultrasonography (US) is commonly used for the initial screening of bilio-pancreatic diseases in Asian countries due to its widespread availability, the non-invasiveness and the cost-effectiveness. However, it is considered that US has limits to observe the area, namely the blind area. The observation of the pancreatic tail is particularly difficult. The goal of this study was to examine the pancreatic tail region that cannot be visualized on transverse scanning of the upper abdomen using US with spatial positional information and factors related to visualization, and observation of the tail from the splenic hilum. Methods Thirty-nine patients with pancreatic/biliary tract disease underwent CT and US with GPS-like technology and fusion imaging for measurement of the real pancreatic length and the predicted/real unobservable (PU and RU) length of the pancreatic tail. RU from US on transverse scanning and the real pancreatic length were used to determine the unobservable area (UA: RU/the real pancreatic length). Relationships of RU with physical and hematological variables that might influence visualization of the pancreatic tail were investigated. Results The real pancreatic length was 160.9 ± 16.4 mm, RU was 41.0 ± 17.8 mm, and UA was 25.3 ± 10.4%. RU was correlated with BMI (R = 0.446, P = 0.004) and waist circumferences (R = 0.354, P = 0.027), and strongly correlated with PU (R = 0.788, P < 0.001). The pancreatic tail was visible from the splenic hilum in 22 (56%) subjects and was completely identified in 13 (33%) subjects. Conclusions Combined GPS-like technology with fusion imaging was useful for the objective estimation of the pancreatic blind area.

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U2 - 10.1016/j.ejrad.2014.05.009

DO - 10.1016/j.ejrad.2014.05.009

M3 - Article

C2 - 24906246

AN - SCOPUS:84903747792

VL - 83

SP - 1324

EP - 1331

JO - European Journal of Radiology

JF - European Journal of Radiology

SN - 0720-048X

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