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Pancreatic cancer mri

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https://www.readbyqxmd.com/read/29352379/magnetic-resonance-with-diffusion-weighted-imaging-improves-assessment-of-focal-liver-lesions-in-patients-with-potentially-resectable-pancreatic-cancer-on-ct
#1
Sun Kyung Jeon, Jeong Min Lee, Ijin Joo, Dong Ho Lee, Su Joa Ahn, Hyunsik Woo, Myoung Seok Lee, Jin-Young Jang, Joon Koo Han
PURPOSE: To investigate added value of MRI to preoperative staging MDCT for evaluation of focal liver lesions (FLLs) in potentially resectable pancreatic ductal adenocarcinomas (PDACs). MATERIALS AND METHODS: In patients with potentially resectable PDACs after staging MDCT (n=167), characteristics of FLLs were scored as benign, indeterminate or metastases on an MDCT set and combined MDCT and MRI set by two readers, independently. Size of hepatic lesions was measured and detection rate of hepatic metastasis unsuspected by MDCT and diagnostic yield of MRI for FLLs were assessed...
January 19, 2018: European Radiology
https://www.readbyqxmd.com/read/29319916/1-0t-mr-guided-percutaneous-coaxial-cutting-needle-biopsy-in-pancreatic-lesion-diagnosis
#2
Chao Liu, Ligang Wang, Xiangmeng He, Yujun Xu, Dong Lu, Peipei Li, Rongbin Lv, Yong Feng, Ming Liu, Chengli Li
BACKGROUND: Pancreatic carcinoma is a common cause of cancer deaths worldwide. Biopsy is often required for the initial diagnosis of pancreatic masses. Biopsy can be performed endoscopically or percutaneously with computed tomography (CT) and ultrasound (US) guidance. MRI offers many inherent advantages over CT and US. PURPOSE/HYPOTHESIS: To prospectively evaluate the feasibility, accuracy, and safety of MRI-guided percutaneous coaxial cutting needle biopsy of pancreatic lesions using an open 1...
January 10, 2018: Journal of Magnetic Resonance Imaging: JMRI
https://www.readbyqxmd.com/read/29290790/changes-in-the-microarchitecture-of-the-pancreatic-cancer-stroma-are-linked-to-neutrophil-dependent-reprogramming-of-stellate-cells-and-reflected-by-diffusion-weighted-magnetic-resonance-imaging
#3
Philipp Mayer, Christine Dinkic, Ralf Jesenofsky, Miriam Klauss, Peter Schirmacher, Ulrike Dapunt, Thilo Hackert, Florian Uhle, G Maria Hänsch, Matthias M Gaida
In pancreatic cancer (PDAC) intratumor infiltration of polymorphonuclear neutrophils (PMN) is associated with histologically apparent alterations of the tumor growth pattern. The aim of this study was to examine possible associations between PMN infiltration, tumor microarchitecture, and water diffusivity in diffusion-weighted magnetic resonance imaging (DW-MRI), and to further asses the underlying mechanisms. Methods: DW-MRI was performed in 33 PDAC patients prior to surgery. In parallel, tissue specimen were examined histologically for growth pattern, azurocidin-positive PMN infiltrates, and the presence of alpha-smooth muscle actin (α-SMA) and metalloproteinase 9 (MMP9)-positive myofibroblastic cells...
2018: Theranostics
https://www.readbyqxmd.com/read/29282391/multifocal-mass-lesions-in-autoimmune-pancreatitis
#4
Kazuhiro Suzumura, Etsuro Hatano, Naoki Uyama, Toshihiro Okada, Yasukane Asano, Seikan Hai, Keiji Nakasho, Jiro Fujimoto
A 59-year-old male patient with jaundice was referred to our hospital because of mass lesions in the pancreatic head and tail. An immunological examination revealed an elevated serum IgG4 level. Computed tomography showed two clear boundary mass lesions in the pancreatic head and tail. Magnetic resonance imaging showed that the mass lesions exhibited low intensity on T1-weighted images and iso-intensity on T2-weighted images. Magnetic resonance cholangiopancreatography showed an obstruction of the main pancreatic duct in the pancreatic head and tail...
September 2017: Case Reports in Gastroenterology
https://www.readbyqxmd.com/read/29221719/integration-of-different-criteria-for-borderline-resectable-pancreatic-cancer-using-classification-tree-analysis-the-use-of-radiological-tumour-vascular-interface-in-correlation-with-surgical-and-pathological-outcomes
#5
J A Hwang, K M Jang, S H Kim, T W Kang, K D Song, D I Cha, S Ahn
AIM: To integrate various criteria for borderline resectable pancreatic cancer (BRPC) based on radiological parameters using classification tree analysis. MATERIALS AND METHODS: The institutional review board approved this retrospective study and waived the requirement for informed consent. Two hundred and thirty-five tumour-vein interfaces and 67 tumour-artery interfaces in 245 patients with surgically confirmed pancreatic ductal adenocarcinoma who underwent both preoperative computed tomography (CT) and magnetic resonance imaging (MRI) were assessed by two independent readers...
December 5, 2017: Clinical Radiology
https://www.readbyqxmd.com/read/29221632/transarterial-chemoembolization-in-pancreatic-adenocarcinoma-with-liver-metastases-mr-based-tumor-response-evaluation-apparent-diffusion-coefficient-adc-patterns-and-survival-rates
#6
Thomas J Vogl, Sherif A Mohamed, Moritz H Albrecht, Tatjana Gruber-Roh, Han Lin, Nour Eldin A Nour Eldin, Iliana Bednarova, Nagy N Naguib, Bita Panahi
PURPOSE: To retrospectively investigate the effectiveness of triple drug combination transarterial chemoembolization (TACE) on local tumor response and survival in patients with liver metastases from pancreatic cancer. Also, this study will evaluate the variances in response regarding the number of metastases, assess the correlation between tumor response and the changes in the apparent diffusion coefficients (ADC) in diffusion weighted (DW) MRI. MATERIALS AND METHODS: One hundred and twelve patients (58 men and 54 women; mean age 57) with malignant liver metastases from pancreatic adenocarcinoma underwent at least one session of TACE with a chemotherapeutic combination of mitomycin C, cisplatin, and gemcitabine...
December 5, 2017: Pancreatology: Official Journal of the International Association of Pancreatology (IAP) ... [et Al.]
https://www.readbyqxmd.com/read/29213025/-a-case-of-non-invasive-ipmc-with-fibrotic-lesion-like-tubular-complex
#7
Yasuaki Abe, Kenji Kimura, Hiromune Shimamura, Kazunori Takeda, Hiroyoshi Suzuki, Junko Sakurada, Kazuyuki Ishida, Katsuaki Ukai
A 73-year-old man was incidentally diagnosed with a cystic lesion in the pancreatic body. Ultrasonography, abdominal computed tomography, magnetic resonance imaging, endoscopic retrograde cholangiopancreatography, and endoscopic ultrasound were performed, and a nodule was detected in the cystic lesion along with an irregularity of the main pancreatic duct. An initial diagnosis of a mixed-type intraductal papillary mucinous neoplasm was made, and a central pancreatectomy was performed. However, the final diagnosis was altered to non-invasive intraductal papillary mucinous carcinoma (IPMC)...
2017: Nihon Shokakibyo Gakkai Zasshi, the Japanese Journal of Gastro-enterology
https://www.readbyqxmd.com/read/29212734/predictors-of-response-and-survival-in-locally-advanced-adenocarcinoma-of-the-pancreas-following-neoadjuvant-gtx-with-or-without-radiation-therapy
#8
William H Sherman, Elizabeth Hecht, David Leung, Kyung Chu
LESSONS LEARNED: There is no presenting parameter that predicts the success of neoadjuvant therapy for pancreatic cancer.Despite the images on scans following neoadjuvant therapy, all patients should be evaluated, because inflammation following radiation therapy (RT) may overstate the extent of tumor and vascular involvement. BACKGROUND: In patients presenting with locally advanced pancreatic adenocarcinoma deemed unresectable by two pancreatic cancer surgeons, we analyzed presenting tumor size, extent of vascular involvement, tumor markers, response to neoadjuvant gemcitabine (G), docetaxel (T), and capecitabine (X) with or without additional chemoradiotherapy with GX on R0 resection rates (≥2 mm margins), and survival...
December 6, 2017: Oncologist
https://www.readbyqxmd.com/read/29191275/screening-of-patients-at-risk-for-familial-pancreatic-cancer-what-is-bene%C3%AF-cial
#9
REVIEW
Robert J Torphy, Richard D Schulick
Family history is a significant risk factor for developing pancreatic cancer and this hereditary risk can be secondary to familial cancer predisposition syndromes, hereditary pancreatitis, or familial pancreatic cancer. Certain high-risk individuals are recommended to undergo screening for pancreatic cancer with endoscopic ultrasound or MRI/magnetic resonance retrograde cholangiopancreatography because of the potential to identify and curatively resect precursor lesions. The management of suspicious lesions identified on screening high-risk individuals is also discussed...
February 2018: Surgical Clinics of North America
https://www.readbyqxmd.com/read/29151953/pancreatic-cancer-in-lynch-syndrome-patients
#10
REVIEW
Luis Bujanda, Marta Herreros-Villanueva
Although colorectal cancer (CRC) is the most common cancer type in Lynch syndrome (LS) families, patients have also increased lifetime risk of other types of tumors. The accumulated risk of pancreatic cancer (PC) in LS patients is around 3.7% and developed tumors often present a characteristically medullary appearance with prominent lymphocytic infiltration. LS patients are considered in high risk for PC development as they present 8.6-fold increase compared with the general population. Here we review PC cases reported in LS patients and current management guidelines...
2017: Journal of Cancer
https://www.readbyqxmd.com/read/29143875/the-role-of-18f-fdg-pet-ct-and-pet-mri-in-pancreatic-ductal-adenocarcinoma
#11
Randy Yeh, Laurent Dercle, Ishan Garg, Zhen Jane Wang, David M Hough, Ajit H Goenka
Pancreatic ductal adenocarcinoma (PDAC) remains a difficult disease to treat and continues to portend a poor prognosis, as most patients are unresectable at diagnosis. 18F-fluorodeoxyglucose (FDG) positron emission tomography (PET) combined with CT (PET/CT) has been a cornerstone in oncological imaging of different cancers; however, the role of PET/CT in PDAC is continually evolving and currently not well established. Studies have shown the potential of PET/CT in guiding the management of patients with PDAC, with possible added benefit over anatomic imaging with CT or MRI in certain scenarios...
November 16, 2017: Abdominal Radiology
https://www.readbyqxmd.com/read/29129384/radiofrequency-ablation-for-hepatic-oligometastatic-pancreatic-cancer-an-analysis-of-safety-and-efficacy
#12
Yong-Qiang Hua, Peng Wang, Xiao-Yan Zhu, Ye-Hua Shen, Kun Wang, Wei-Dong Shi, Jun-Hua Lin, Zhi-Qiang Meng, Zhen Chen, Hao Chen
OBJECTIVES: This study was to evaluate the value of radiofrequency ablation (RFA) in the treatment of pancreatic cancer with synchronous liver oligometastasis. METHODS: 102 patients diagnosed with pancreatic cancer with synchronous liver oligometastasis undergoing RFA were recruited in this retrospective study between January 2012 and December 2015. Clinical efficacy was evaluated by computed tomography or magnetic resonance imaging 1 month later. All patients were treated with RFA and systemic chemotherapy based on NCCN guideline...
November 2017: Pancreatology: Official Journal of the International Association of Pancreatology (IAP) ... [et Al.]
https://www.readbyqxmd.com/read/29118705/oxaliplatin-induced-hyperammonemic-encephalopathy-in-a-patient-with-metastatic-pancreatic-cancer-a-case-report
#13
Takatsugu Ogata, Hironaga Satake, Misato Ogata, Yukimasa Hatachi, Hisateru Yasui
Oxaliplatin-based chemotherapy is widely used to treat advanced cancer. Oxaliplatin-induced hyperammonemic encephalopathy is rarely reported. Here, we report a case of oxaliplatin-induced hyperammonemic encephalopathy occurring after gemcitabine plus oxaliplatin (GEMOX) chemotherapy in a patient with pancreatic cancer. A 76-year-old man received GEMOX regimen as first-line treatment for pancreatic adenocarcinoma with peritoneal dissemination. GEMOX consists of gemcitabine (1,000 mg/m(2)) and oxaliplatin (100 mg/m(2)) on day 1, repeated every 2 weeks...
September 2017: Case Reports in Oncology
https://www.readbyqxmd.com/read/29113316/efficacy-of-sub-threshold-focused-ultrasound-irradiation-against-pancreatic-cancer-xenografts-evaluated-using-magnetic-resonance-imaging
#14
Rui Wang, Qian Guo, Yini Chen, Yihui Gao, Lei Wu, Bing Hu, Lixin Jiang
We investigated the efficacy and optimal period for using magnetic resonance imaging (MRI) to detect effects of sub-threshold focused ultrasound (FUS) irradiation. Nude mice bearing pancreatic cancer xenografts were subjected to MRI and pathology examnation before, and 24 h, 48 h, 2 weeks after irradiation, which were used to evaluate therapeutic effects of FUS. Tumor volumes were lower post-treatment than control group (P < 0.05). The T1WI turbo spin echo (T1WI-TSE) sequence was similar signal before and after treatment...
October 6, 2017: Oncotarget
https://www.readbyqxmd.com/read/29113292/nod-mice-susceptible-to-pancreatic-autoimmunity-demonstrate-delayed-growth-of-pancreatic-cancer
#15
James Dooley, Emanuela Pasciuto, Vasiliki Lagou, Yulia Lampi, Tom Dresselaers, Uwe Himmelreich, Adrian Liston
Pancreatic cancer is a high mortality form of cancer, with a median survival only six months. There are multiple associated risk factors associated, most importantly type 2 diabetes, obesity, pancreatitis and smoking. The relative rarity of the disease, however, has made it difficult to dissect causative risk factors, especially with related risk factors. A major unanswered question with important therapeutic implications is the effect of immunological responses on pancreatic cancer formation, with data from other cancers suggesting the potential for local immunological responses to either increase cancer development or increase cancer elimination...
October 6, 2017: Oncotarget
https://www.readbyqxmd.com/read/29113245/temporomandibular-dislocation-caused-by-pancreatic-cancer-metastasis-a-case-report
#16
Shinpei Matsuda, Hitoshi Yoshimura, Sadahiko Kondo, Kazuo Sano
Metastasis-induced dislocation of the temporomandibular joint (TMJ) is rare. The present study describes a case of TMJ dislocation caused by metastasis from pancreatic cancer, and discusses this in the context of literature on occlusal abnormality and/or dislocation due to metastasis. In the present case, unilateral TMJ dislocation was suspected when the patient first presented; destructive bone changes were not observed on conventional radiographs, and magnetic resonance imaging (MRI) revealed a tumorous lesion...
November 2017: Oncology Letters
https://www.readbyqxmd.com/read/29107217/ultrasensitive-mri-detection-of-spontaneous-pancreatic-tumors-with-nanocage-based-targeted-contrast-agent
#17
Takahito Kawano, Masaharu Murata, Jeong-Hun Kang, Jing Shu Piao, Sayoko Narahara, Fuminori Hyodo, Nobuhito Hamano, Jie Guo, Susumu Oguri, Kenoki Ohuchida, Makoto Hashizume
Contrast agents with greater specificity and sensitivity are required for the diagnosis of pancreatic cancers by magnetic resonance imaging (MRI). In this study, small heat shock protein 16.5 (Hsp16.5)-based nanocages conjugated to gadolinium(III)-chelated contrast agents and iRGD peptides (which target neuropilin-1 expressed on pancreatic cancer cells) were developed. To investigate whether template size influences relaxivity, nanocages with one to four hydrophobic domains were designed. MRI data showed that larger nanocages had higher T1 relaxivity than smaller nanocages, which resulted from a reduction in molecular tumbling rates caused by an increase in nanocage size, and a robust cage structure resulting from the introduction of hydrophobic domains...
October 20, 2017: Biomaterials
https://www.readbyqxmd.com/read/29101607/development-of-a-high-risk-pancreatic-screening-clinic-using-3-0%C3%A2-t-mri
#18
Chad A Barnes, Elizabeth Krzywda, Shannon Lahiff, Dena McDowell, Kathleen K Christians, Paul Knechtges, Parag Tolat, Mark Hohenwalter, Kulwinder Dua, Abdul H Khan, Douglas B Evans, Jennifer Geurts, Susan Tsai
Selective screening for pancreatic cancer (PC) has been proposed. We describe the establishment of a comprehensive multidisciplinary screening program using 3.0 T MRI. Criteria for screening included the presence of PC in: ≥ 2 first degree relatives (FDR), 1 FDR and 1 s degree relative (SDR), ≥ 3 any degree relatives (ADR), or any known hereditary cancer syndrome with increased PC risk. Imaging with 3.0 T MRI was performed routinely and endoscopic ultrasound was used selectively. Screening was completed in 75 patients (pts)...
November 3, 2017: Familial Cancer
https://www.readbyqxmd.com/read/29043580/a-comprehensive-assessment-of-accurate-lymph-node-staging-and-preoperative-detection-in-resected-pancreatic-cancer
#19
Toshiro Masuda, Amanda M Dann, Irmina A Elliott, Hideo Baba, Stephen Kim, Alireza Sedarat, V Raman Muthusamy, Mark D Girgis, O Joe Hines, Howard A Reber, Timothy R Donahue
BACKGROUND: The current (seventh edition) American Joint Commission on Cancer (AJCC) Staging System for pancreatic ductal adenocarcinoma (PDAC) dichotomizes pathologic lymph node (LN) involvement into absence (pN0) or presence (pN1) of disease. The recently announced eighth edition also includes stratification on the number of positive nodes. Furthermore, LNs detected on preoperative imaging (CT, MRI, or endoscopic ultrasound-EUS) are considered to be pathologically involved in other gastrointestinal cancers...
October 17, 2017: Journal of Gastrointestinal Surgery: Official Journal of the Society for Surgery of the Alimentary Tract
https://www.readbyqxmd.com/read/29042120/pilot-study-on-the-impact-of-f18-labeled-thymidine-pet-ct-on-gross-tumor-volume-identification-and-definition-for-pancreatic-cancer
#20
Jennifer L Pretz, Michael A Blake, Joseph H Killoran, Harvey J Mamon, Jennifer Y Wo, Andrew X Zhu, Theodore S Hong
PURPOSE: Accurate target definition for radiation therapy planning in localized pancreatic cancer is critical, particularly when using strategies that omit elective coverage. Standard imaging modalities such as computed tomography (CT), magnetic resonance imaging, and endoscopic ultrasound have limited concordance with pathologic evaluation. Biologic imaging with [F18]-fluorodeoxyglucose (FDG)-positron emission tomography (PET) can also be difficult to interpret because increased activity is indicative of increased glucose metabolism, rather than cellular proliferation...
September 18, 2017: Practical Radiation Oncology
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