|
1
|
Fang X, Jiang H, Cao K, Li J, Liu F, Wang L, Lu J, Shao C, Bian Y. Distinguishing pancreatic solid serous cystadenomas from nonfunctional pancreatic neuroendocrine tumors by computed tomography: A propensity score analysis. Medicine (Baltimore) 2022; 101:e30523. [PMID: 36123910 PMCID: PMC9478255 DOI: 10.1097/md.0000000000030523] [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] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
This study aims to evaluate the utility of calculated computed tomography (CT) attenuation value ratio (AVR) and enhancement pattern in distinguishing pancreatic solid serous cystadenomas (SCAs) from nonfunctional pancreatic neuroendocrine tumors (NF-pNETs). A total of 142 consecutive patients with 22 solid SCAs and 120 NF-pNETs confirmed by pathology were included in this retrospective study. All patients underwent preoperative contrast-enhanced CT and were categorized into 2 groups, solid SCA and NF-pNET groups. Patients with NF-pNETs were matched to patients with solid SCAs via propensity scores. AVR was measured and defined as: attenuation value of tumor/attenuation value of normal pancreas. AVR and enhancement pattern performance were assessed according to the discriminative abilities of patients. After matching, 29 patients were allocated to the NF-pNET group. Before matching, sex, age, and the peak enhanced value phase were significantly different between solid SCA and NF-pNET patients (P < .05). After matching, no significant difference was observed between both groups (P > .05). Solid SCAs AVRs were significantly smaller than NF-pNETs AVRs in all unenhanced, arterial, portal venous, and delayed phases (P < .05). Solid SCAs showed significantly more wash-in and wash-out enhancement patterns than NF-pNETs (P < .05). For unenhanced, arterial, portal venous, and delayed phases, and enhancement pattern, the area under the curve (AUC) values were 0.96, 0.72, 0.80, 0.85, and 0.86, respectively. Low AVR on unenhanced CT and wash-in and wash-out enhancement patterns were useful for differentiating solid SCAs from NF-pNETs and may be useful for clinical decisions, a clearer opinion will be formed with further studies to be conducted with larger patient numbers.
Collapse
Affiliation(s)
- Xu Fang
- Department of Radiology, Changhai Hospital of Shanghai, Naval Medical University, Shanghai, China
| | - Hui Jiang
- Department of Pathology, Changhai Hospital of Shanghai, Naval Medical University, Shanghai, China
| | - Kai Cao
- Department of Radiology, Changhai Hospital of Shanghai, Naval Medical University, Shanghai, China
| | - Jing Li
- Department of Radiology, Changhai Hospital of Shanghai, Naval Medical University, Shanghai, China
| | - Fang Liu
- Department of Radiology, Changhai Hospital of Shanghai, Naval Medical University, Shanghai, China
| | - Li Wang
- Department of Radiology, Changhai Hospital of Shanghai, Naval Medical University, Shanghai, China
| | - Jianping Lu
- Department of Radiology, Changhai Hospital of Shanghai, Naval Medical University, Shanghai, China
| | - Chengwei Shao
- Department of Radiology, Changhai Hospital of Shanghai, Naval Medical University, Shanghai, China
| | - Yun Bian
- Department of Radiology, Changhai Hospital of Shanghai, Naval Medical University, Shanghai, China
- *Correspondence: Yun Bian, Department of Radiology, Changhai Hospital of Shanghai, Naval Medical University, Changhai Road 168, Shanghai 200434, China (e-mail: )
| |
Collapse
|