잠시만 기다려 주세요. 로딩중입니다.

The semi-erect position for better visualization of subphrenic hepatocellular carcinoma during ultrasonography examinations

Ultrasonography 2021년 40권 2호 p.274 ~ 280
고성은, 이민우, 임효근, 민지혜, 차동익, 강태욱, 송경두, 김민주, 임현철,
소속 상세정보
고성은 ( Ko Seong-eun ) - Sungkyunkwan University School of Medicine Samsung Medical Center Department of Radiology
이민우 ( Lee Min-Woo ) - Sungkyunkwan University School of Medicine Samsung Medical Center Department of Radiology
임효근 ( Lim Hyo-Keun ) - Sungkyunkwan University School of Medicine Samsung Medical Center Department of Radiology
민지혜 ( Min Ji-Hye ) - Sungkyunkwan University School of Medicine Samsung Medical Center Department of Radiology
차동익 ( Cha Dong-Ik ) - Sungkyunkwan University School of Medicine Samsung Medical Center Department of Radiology
강태욱 ( Kang Tae-Wook ) - Sungkyunkwan University School of Medicine Samsung Medical Center Department of Radiology
송경두 ( Song Kyoung-Doo ) - Sungkyunkwan University School of Medicine Samsung Medical Center Department of Radiology
김민주 ( Kim Min-Ju ) - Sungkyunkwan University School of Medicine Samsung Medical Center Department of Radiology
임현철 ( Rhim Hyun-Chul ) - Sungkyunkwan University School of Medicine Samsung Medical Center Department of Radiology

Abstract


Purpose: This study investigated which body position is more useful for visualizing subphrenic hepatocellular carcinomas (HCCs) during ultrasonography (US) examinations.

Methods: This prospective study was approved by the institutional review board and written informed consent was obtained from all patients. Twenty consecutive patients with a single subphrenic HCC (treatment-naive, 1 to 3 cm) underwent a US examination for planning radiofrequency ablation. The examinations were done by one of three radiologists and the patients were examined in four different body positions-supine, right posterior oblique (RPO), left lateral decubitus (LLD), and semi-erect-by being positioned on a tilted table. The visibility of the index tumor was prospectively assessed using a 4-point scale. Needle insertion was considered to be technically feasible if the visibility score was lower than 2. The visibility score and technical feasibility were compared using the Wilcoxon signed rank test and the McNemar test, respectively, for pairwise comparisons between different body positions.

Results: The visibility score was significantly lower in the semi-erect position (median, 2; interquartile range, 1 to 2.75) than in the supine (3, 2 to 4), RPO (3, 2 to 4), and LLD (4, 3.25 to 4) positions (P=0.007, P=0.005, and P=0.001, respectively). The technical feasibility of needle insertion was also significantly higher in the semi-erect position (75%, 15/20) than in the supine (45%, 9/45), RPO (35%, 7/20), and LLD (20%, 4/20) positions (P=0.031, P=0.021, and P=0.001, respectively).

Conclusion: The semi-erect position is more useful for the visualization of subphrenic HCCs than the supine, RPO, or LLD positions.

키워드

Liver; Ultrasound; Surveillance; Position; Hepatocellular carcinoma

원문 및 링크아웃 정보

등재저널 정보