Publications by authors named "Hiroto Sasamori"
Aims/hypothesis: Although IGF-1 is known to promote organ growth, including exocrine pancreas, the association between plasma IGF-1 levels and pancreatic size remains unclear in diabetic patients.
Methods: This cross-sectional study was designed to investigate the correlations among pancreatic volume (PV) based on computed tomography, IGF-1 levels, age- and sex-adjusted IGF-1 levels (IGF-1 Z-score), and C-peptide levels in patients with type 1 diabetes (T1D) (n = 51) and type 2 diabetes (T2D) (n = 104) in a Japanese population.
Results: PV was significantly correlated with body weight (BW) in both types of diabetes.
Aims: To clarify the clinical impact of pancreatic fat volume on beta cell function in type 2 diabetes patients.
Materials And Methods: One hundred thirty two consecutive type 2 diabetic patients (mean age, 63.7 years) were enrolled in this cross-sectional study.
Aims/introduction: To elucidate the relationship between titers of islet autoantibodies, the C-X-C motif chemokine 10 - a circulating chemokine that activates T-helper 1 cells leading to β-cell destruction - and β-cell function in type 1 diabetes.
Materials And Methods: In total, 58 type 1 diabetes patients positive for glutamic decarboxylase-65 autoantibodies (GADA)-radioimmunoassay (mean age 54.1 years; 27 acute-onset cases and 31 slowly progressive cases) were enrolled; serum C-X-C motif chemokine 10 (n = 50), zinc transporter 8 autoantibodies (n = 50) and GADA (n = 58) by an enzyme-linked immunosorbent assay, and insulinoma-associated antigen-2 autoantibodies by radioimmunoassay (n = 50) were measured.
Objective: Positron emission tomography/computed tomography (PET/CT) with fluorodeoxyglucose (F18-FDG) is useful for the detection of malignant lesions, including metastatic lesions, and this technique is widely used in cancer screening. However, this approach may occasionally yield false-positive and false-negative findings. At our PET center, to increase the accuracy of PET/CT, we use PET/CT and whole-body diffusion-weighted imaging (WB-DWI) together.
View Article and Find Full Text PDFAims/introduction: A decrease in the size of the pancreas is observed in islet autoantibody-positive non-diabetic donors and acute-onset type 1 diabetes irrespective of the diabetes duration. Little is known, however, about the relationship between the size of the pancreas and type 1 diabetes subtypes, including fulminant type 1 diabetes.
Materials And Methods: We examined the pancreatic volume (PV) in 44 adult patients with type 1 diabetes (16 acute-onset type 1 diabetes, 18 slowly progressive type 1 diabetes and 10 fulminant type 1 diabetes) and 39 age- and body mass index-matched non-diabetic controls.
Purpose: To evaluate morphological and signal intensity (SI) changes of placental insufficiency on magnetic resonance imaging (MRI) and to assess morphological changes and decreased flow voids (FVs) on T2-weighted rapid acquisition with relaxation enhancement (RARE) images for diagnosing placental insufficiency.
Methods: Fifty singleton fetuses underwent MRI using a 1.5-T MR scanner.
Purpose: We evaluated the ability of diffusion-weighted imaging (DWI) at 3 tesla for diagnosing T stage and detecting stalks in bladder cancer.
Methods: In total, 39 consecutive patients with bladder tumors underwent magnetic resonance (MR) imaging that included T2-weighted imaging (T2WI) and DWI using a 3T MR scanner. Two radiologists interpreted T2WI plus DWI and T2WI for diagnosis of T stage and for detection of stalks.
Purpose: We assessed the usefulness of apparent diffusion coefficients (ADCs) for solid renal tumor imaging using diffusion-weighted magnetic resonance imaging (DWI) at 3T.
Methods: This retrospective study assessed ADCs of 31 patients with renal tumors that were imaged using preoperative DWI. DWI was performed with the b values of 50, 500, and 1000 s/mm(2), using a 3T magnetic resonance imaging (MRI) system (MAGNETOM Trio, 3T, Siemens Healthcare, Erlangen, Germany).