Publications by authors named "K Ishigami"
Introduction: This study examined factors that affected sentinel lymph node (SLN) identification of patients with endometrial cancer having a preoperative estimation of low recurrent risk.
Methods: This study included 97 patients with endometrial cancer who attempted to identify SLN using a uterine cervical injection of technetium-99 m phytate under laparoscopic or robotic-assisted surgery at our institute. A preoperative single photon emission computed tomography (SPECT) and intraoperative gamma probe were used to detect hot nodes.
This study proposed noninvasive machine-learning models for the detection of lesion-specific ischemia (LSI) in patients with stable angina with intermediate stenosis severity based on coronary computed tomography (CT) angiography. This single-center retrospective study analyzed 76 patients (99 vessels) with stable angina who underwent coronary CT angiography (CCTA) and had intermediate stenosis severity (40-69%) on invasive coronary angiography. LSI, defined as a resting full-cycle ratio < 0.
View Article and Find Full Text PDFBackground: The long-term survival rate of patients with pancreatic ductal adenocarcinoma has improved alongside the development of multidisciplinary treatment, and there is now demand for less invasive surgery that maintains postoperative pancreatic function. We evaluated the efficacy of pancreas-preserving distal pancreatectomy in terms of oncologic parameters and postoperative pancreatic function.
Methods: The data of 98 consecutive patients who underwent distal pancreatectomy for the treatment of pancreatic ductal adenocarcinoma between 2012 and 2022 in our institution were retrospectively analyzed.
Article Synopsis
- The study aimed to compare the effectiveness of intravoxel incoherent motion (IVIM) imaging and arterial spin labeling (ASL) in evaluating renal blood flow in rodent models of acute kidney injury (AKI).
- Researchers tested three fitting methods on diffusion-weighted imaging data to assess the reliability of pseudo-diffusion parameters and their ability to correlate with renal blood flow.
- Findings revealed that while ASL effectively detected a significant drop in renal blood flow due to AKI, IVIM's pseudo-diffusion parameters were not reliable or correlated, suggesting the need for careful consideration when interpreting results using IVIM in kidney studies.
Objectives: The purpose of this study was to compare the image quality of ultra-high-resolution computed tomography (U-HRCT) with that of conventional multi-detector row CT (convCT) and demonstrate its usefulness in the dentomaxillofacial region.
Methods: Phantoms were helically scanned with U-HRCT and convCT scanners using clinical protocols. In U-HRCT, phantoms were scanned in super-high-resolution (SHR) mode, and hybrid iterative reconstruction (HIR) and filtered-back projection (FBP) techniques were performed using a bone kernel (FC81).