Hidekazu Yamaura
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View article: Distinctive imaging features of liver metastasis from gastric adenocarcinoma with enteroblastic differentiation: A case report
Distinctive imaging features of liver metastasis from gastric adenocarcinoma with enteroblastic differentiation: A case report Open
BACKGROUND Gastric adenocarcinoma with enteroblastic differentiation (GAED) is one of the common subtypes of alpha-foetoprotein (AFP)-producing gastric cancer. GAED frequently results in venous invasion and liver metastasis, the latter bei…
View article: Successful ureteral stent placement with rendezvous technique for ureteral obstruction after urinary diversion: A case report
Successful ureteral stent placement with rendezvous technique for ureteral obstruction after urinary diversion: A case report Open
Ureteral obstruction after urinary diversion is not a rare complication, and the treatment is generally the ureteral stent placement via antegrade approach via the nephrostomy. We present a case of 64-year-old man with history of total pel…
View article: Clinical Outcomes of Radiofrequency Ablation Combined with Transarterial Chemoembolization Using Degradable Starch Microsphere Mixed with Mitomycin C for the Treatment of Non-hepatocellular Carcinoma Malignant Liver Tumors
Clinical Outcomes of Radiofrequency Ablation Combined with Transarterial Chemoembolization Using Degradable Starch Microsphere Mixed with Mitomycin C for the Treatment of Non-hepatocellular Carcinoma Malignant Liver Tumors Open
Radiofrequency ablation combined with transarterial chemoembolization using degradable starch microspheres was safe and showed favorable local control for non-hepatocellular carcinoma malignant liver tumors.
View article: Clinical usefulness of Somatostatin Receptor Scintigraphy in the Diagnosis of Neuroendocrine Neoplasms.
Clinical usefulness of Somatostatin Receptor Scintigraphy in the Diagnosis of Neuroendocrine Neoplasms. Open
The detectability of SRS for NEN in Japan was verified at a center, and its usefulness was confirmed.
View article: Novel strategy to treat lung metastases: Hybrid therapy involving surgery and radiofrequency ablation
Novel strategy to treat lung metastases: Hybrid therapy involving surgery and radiofrequency ablation Open
Background This study was performed to evaluate the clinical outcomes of hybrid treatment involving surgical resection and percutaneous radiofrequency ablation for patients with multiple lung metastases. Methods Seventeen patients (6 men, …
View article: Percutaneous transsplenic obliteration of ectopic varices following pancreaticoduodenectomy with portal vein resection and splenic vein ligation
Percutaneous transsplenic obliteration of ectopic varices following pancreaticoduodenectomy with portal vein resection and splenic vein ligation Open
Left-sided portal hypertension following pancreaticoduodenectomy (PD) with portal vein resection and splenic vein ligation may cause ectopic variceal formation, potentially resulting in life-threatening bleeding. We report of a 79-year-old…
View article: Percutaneous Image-guided Needle Biopsy of Musculoskeletal Tumors: Technical Tips
Percutaneous Image-guided Needle Biopsy of Musculoskeletal Tumors: Technical Tips Open
With recent advances in imaging technology, the frequency of detecting musculoskeletal lesions has also increased. Percutaneous image-guided needle biopsy is occasionally required for the diagnosis of such lesions. Moreover, in the era of …
View article: Preoperative Embolization of Spinal Metastatic Tumor: The Use of Selective Computed Tomography Angiography for the Detection of Radiculomedullary Arteries
Preoperative Embolization of Spinal Metastatic Tumor: The Use of Selective Computed Tomography Angiography for the Detection of Radiculomedullary Arteries Open
The present study showed small amounts of intraoperative blood loss without any severe complications related to preoperative embolization. Selective CT angiography was a useful technique to detect RMAs and contributed to the safety of preo…
View article: Endoscopic necrosectomy through a self-expandable metallic stent placed percutaneously for walled-off pancreatic necrosis
Endoscopic necrosectomy through a self-expandable metallic stent placed percutaneously for walled-off pancreatic necrosis Open
Walled-off pancreatic necrosis (WOPN) is defined as encapsulated necrotic tissue after severe acute pancreatitis. Treatment strategies for WOPN can be challenging. Although open surgical necrosectomy is the standard treatment for WOPN, it …
View article: Clinical Outcomes and Techniques for Radiofrequency Ablation of Lung Tumors Smaller than 1 cm
Clinical Outcomes and Techniques for Radiofrequency Ablation of Lung Tumors Smaller than 1 cm Open
PURPOSE: To evaluate the outcomes of radiofrequency ablation (RFA) on lung tumors < 1 cm in maximum diameter. MATERIALS AND METHODS: Twenty-eight patients (12 male, 16 female; median age, 59 years; mean age, 58 ± 16 years; range, 16-78 yea…
View article: Submucosal Tunnel Formation as a Complication Caused by Long Intestinal Tube Insertion: A Case Report
Submucosal Tunnel Formation as a Complication Caused by Long Intestinal Tube Insertion: A Case Report Open
We present a case of a 76-year-old man with submucosal tunnel formation caused by long intestinal tube (LIT) insertion. The patient had undergone an LIT insertion to treat bowel obstruction caused by ascending colon cancer. Although intest…
View article: The correlation between histomorphometry and relative tumor enhancement images by the texture analysis in colorectal liver metastases
The correlation between histomorphometry and relative tumor enhancement images by the texture analysis in colorectal liver metastases Open
Poster: ECR 2020 / C-01196 / The correlation between histomorphometry and relative tumor enhancement images by the texture analysis in colorectal liver metastases by: S. Matsushima 1, S. Murata1, Y. Sato1, H. Onaya2, H. Yamaura1, M…
View article: Pseudoaneurysm Formation and Hemobilia as Late Complications after Transarterial Chemoembolization and Radiofrequency Ablation for Hepatocellular Carcinoma
Pseudoaneurysm Formation and Hemobilia as Late Complications after Transarterial Chemoembolization and Radiofrequency Ablation for Hepatocellular Carcinoma Open
An 82-year-old man underwent transarterial chemoembolization and radiofrequency ablation (RFA) for a 42-mm hepatocellular carcinoma in segment IV. Thirty-eight months later, he was admitted to our hospital for acute cholecystitis that had …
View article: Acute hyperammonemic encephalopathy after fluoropyrimidine-based chemotherapy
Acute hyperammonemic encephalopathy after fluoropyrimidine-based chemotherapy Open
Acute hyperammonemic encephalopathy induced by fluoropyrimidines (FPs) is a rare complication. Its pathophysiology remains unclear, especially given the currently used regimens, including intermediate-doses of 5-fluorouracil (5-FU) or oral…
View article: Computed tomography images of a lung adenocarcinoma showing ground-glass opacity with solid components.
Computed tomography images of a lung adenocarcinoma showing ground-glass opacity with solid components. Open
(A) Thoracic computed tomography reveals ground-glass opacity with solid components. (B) Thoracic computed tomography reveals extranodal invasion of the lymph nodes.
View article: Imaging characteristics of the main tumor in stage IIIB–IV patients with lung adenocarcinoma.
Imaging characteristics of the main tumor in stage IIIB–IV patients with lung adenocarcinoma. Open
Imaging characteristics of the main tumor in stage IIIB–IV patients with lung adenocarcinoma.
View article: Imaging characteristics of the intra-thoracic findings in stage IIIB–IV patients with lung adenocarcinoma.
Imaging characteristics of the intra-thoracic findings in stage IIIB–IV patients with lung adenocarcinoma. Open
Imaging characteristics of the intra-thoracic findings in stage IIIB–IV patients with lung adenocarcinoma.
View article: The relative distributions of the main tumor and intra-thoracic characteristics among stage IIIB–IV patients with lung adenocarcinoma.
The relative distributions of the main tumor and intra-thoracic characteristics among stage IIIB–IV patients with lung adenocarcinoma. Open
*P < 0.05; † P < 0.01; ‡ P < 0.005.
View article: Imaging Characteristics of Driver Mutations in EGFR, KRAS, and ALK among Treatment-Naïve Patients with Advanced Lung Adenocarcinoma
Imaging Characteristics of Driver Mutations in EGFR, KRAS, and ALK among Treatment-Naïve Patients with Advanced Lung Adenocarcinoma Open
This study aimed to identify the computed tomography characteristics of treatment-naïve patients with lung adenocarcinoma and known driver mutations in EGFR, KRAS, or ALK. Patients with advanced lung adenocarcinoma (stage IIIB-IV) and know…
View article: Multiple metallic stents placement for malignant hilar biliary obstruction: Perspective of a radiologist
Multiple metallic stents placement for malignant hilar biliary obstruction: Perspective of a radiologist Open
In the palliative setting, the necessity of biliary drainage of both liver lobes for malignant hilar biliary obstruction remains controversial. However, bilateral biliary drainage is a reasonable option to prevent cholangitis of the undrai…
View article: Preoperative Evaluation of Posthepatectomy Liver Failure Using MRI-Based Liver Function Indices in Child-Pugh Class A Patient
Preoperative Evaluation of Posthepatectomy Liver Failure Using MRI-Based Liver Function Indices in Child-Pugh Class A Patient Open
Purpose: To evaluate posthepatectomy liver failure (PHLF) using gadoxetic acid-enhanced magnetic resonance imaging (MRI) with a measure of relative liver enhancement (RLE) on hepatobiliary phase images, thereby facilitating safe liver rese…