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Tan X, Li D, Jeong M, Yu T, Ma Z, Afat S, Grund KE, Qiu T. Soft Liver Phantom with a Hollow Biliary System. Ann Biomed Eng 2021; 49:2139-2149. [PMID: 33594636 PMCID: PMC8455397 DOI: 10.1007/s10439-021-02726-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Accepted: 01/05/2021] [Indexed: 02/07/2023]
Abstract
Hepatobiliary interventions are regarded as difficult minimally-invasive procedures that require experience and skills of physicians. To facilitate the surgical training, we develop a soft, high-fidelity and durable liver phantom with detailed morphology. The phantom is anatomically accurate and feasible for the multi-modality medical imaging, including computer tomography (CT), ultrasound, and endoscopy. The CT results show that the phantom resembles the detailed anatomy of real livers including the biliary ducts, with a spatial root mean square error (RMSE) of 1.7 ± 0.7 mm and 0.9 ± 0.2 mm for the biliary duct and the liver outer shape, respectively. The sonographic signals and the endoscopic appearance highly mimic those of the real organ. An electric sensing system was developed for the real-time quantitative tracking of the transhepatic puncturing needle. The fabrication method herein is accurate and reproducible, and the needle tracking system offers a robust and general approach to evaluate the centesis outcome.
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Affiliation(s)
- Xiangzhou Tan
- Cyber Valley Research Group, Institute of Physical Chemistry, University of Stuttgart, Pfaffenwaldring 55, 70569, Stuttgart, Germany.,Department of General, Visceral and Transplant Surgery, University Hospital Tuebingen, 72072, Tuebingen, Germany.,Department of General Surgery, Xiangya Hospital Central South University, Changsha, 410008, China
| | - Dandan Li
- Cyber Valley Research Group, Institute of Physical Chemistry, University of Stuttgart, Pfaffenwaldring 55, 70569, Stuttgart, Germany.,Micro Nano and Molecular Systems Lab, Max Planck Institute for Intelligent Systems, Heisenbergstr. 3, 70569, Stuttgart, Germany
| | - Moonkwang Jeong
- Cyber Valley Research Group, Institute of Physical Chemistry, University of Stuttgart, Pfaffenwaldring 55, 70569, Stuttgart, Germany
| | - Tingting Yu
- Cyber Valley Research Group, Institute of Physical Chemistry, University of Stuttgart, Pfaffenwaldring 55, 70569, Stuttgart, Germany.,Micro Nano and Molecular Systems Lab, Max Planck Institute for Intelligent Systems, Heisenbergstr. 3, 70569, Stuttgart, Germany
| | - Zhichao Ma
- Micro Nano and Molecular Systems Lab, Max Planck Institute for Intelligent Systems, Heisenbergstr. 3, 70569, Stuttgart, Germany
| | - Saif Afat
- Department of Interventional and Diagnostic Radiology, University Hospital Tuebingen, 72072, Tuebingen, Germany
| | - Karl-Enrst Grund
- Department of General, Visceral and Transplant Surgery, University Hospital Tuebingen, 72072, Tuebingen, Germany
| | - Tian Qiu
- Cyber Valley Research Group, Institute of Physical Chemistry, University of Stuttgart, Pfaffenwaldring 55, 70569, Stuttgart, Germany. .,Micro Nano and Molecular Systems Lab, Max Planck Institute for Intelligent Systems, Heisenbergstr. 3, 70569, Stuttgart, Germany.
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Xu X, Kong Z, Yi K, Wang B, Lei Q, Wang Y. Colonic mucinous adenocarcinoma causing intussusception and distant metastasis: A case report. Medicine (Baltimore) 2019; 98:e15740. [PMID: 31124954 PMCID: PMC6571361 DOI: 10.1097/md.0000000000015740] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/02/2022] Open
Abstract
RATIONALE Cases of intussusception caused by mucinous carcinoma have been rarely reported, and those caused by colonic mucinous adenocarcinoma (MAC) with distant metastasis were even fewer. PATIENT CONCERNS A 60-year-old woman who complained of severe pain around the navel with nausea and vomiting for a week was admitted on November 28, 2017. There were multiple watery stools and abdominal pain was worsened over the prior week. DIAGNOSIS She was diagnosed by abdominal computed tomography, current medical history, and abdominal signs. Her initial diagnosis was acute abdomen, intussusceptions, and intestinal obstruction. The final diagnosis was MAC, which was based on postoperative pathology. INTERVENTIONS The patient received emergency laparotomy, followed by 5 courses of chemotherapy with oxaliplatin plus capecitabine, and then 6 courses with 5-fluorouracil + oxaliplatin + calcium leucovorin. OUTCOMES The patient was in good nutritional condition, and no obvious tumor recurrence or metastasis was found until July 9, 2018. LESSONS Even though the prognosis of colonic MAC is poor, being able to receive timely surgical treatment, good nutritional status and reasonable postoperative chemotherapy are the key factors to prolonging patient's survival.
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