Hitomi Iwasa

ORCID: 0000-0001-9626-7866
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About
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Research Areas
  • Radiomics and Machine Learning in Medical Imaging
  • Medical Imaging Techniques and Applications
  • MRI in cancer diagnosis
  • Lung Cancer Diagnosis and Treatment
  • Vascular Malformations Diagnosis and Treatment
  • Radiation Dose and Imaging
  • Neurosurgical Procedures and Complications
  • Intracerebral and Subarachnoid Hemorrhage Research
  • Breast Cancer Treatment Studies
  • Intracranial Aneurysms: Treatment and Complications
  • Pituitary Gland Disorders and Treatments
  • Lung Cancer Treatments and Mutations
  • Medical Imaging and Pathology Studies
  • Renal and related cancers
  • Sarcoidosis and Beryllium Toxicity Research
  • Liver Disease Diagnosis and Treatment
  • Hepatocellular Carcinoma Treatment and Prognosis
  • Breast Lesions and Carcinomas
  • Autoimmune Neurological Disorders and Treatments
  • Infectious Encephalopathies and Encephalitis
  • Renal cell carcinoma treatment
  • Urologic and reproductive health conditions
  • Electrolyte and hormonal disorders
  • Interstitial Lung Diseases and Idiopathic Pulmonary Fibrosis
  • Growth Hormone and Insulin-like Growth Factors

Kōchi University
2016-2025

Fukuoka University
2023

Aichi Gakuin University
2020

Jichi Medical University
1985-1988

Neoadjuvant chemotherapy (NACT) is a widely accepted therapeutic option for patients with breast cancer. Although NACT produces good results cancer patients, it has the potential to delay effective treatment in chemotherapy-resistant The purpose of present study was evaluate utility pretreatment apparent diffusion coefficient (ADC), which calculated from diffusion-weighted imaging (DWI), change ADC after first administration NACT, and tumor greatest diameter on ultrasonography early...

10.3892/or.2014.3025 article EN cc-by-nc Oncology Reports 2014-02-18

Preoperative assessment of the degree liver fibrosis is important to determine treatment strategies. In this study, galactosyl human serum albumin single-photon emission-computed tomography and ethoxybenzyl (EOB) contrast-enhanced magnetic resonance imaging (MRI) were used assess changes in hepatocyte function after fibrosis, standardized uptake value (SUV) was combined with gadolinium EOB-diethylenetriaminepentaacetic acid evaluate its added for staging. A total 484 patients diagnosed...

10.1097/md.0000000000032975 article EN cc-by-nc Medicine 2023-02-17

Thirty-two patients with lobar hematoma were encountered during a period of six and half years. Of these patients, 13 had arterial hypertension, 7 other etiologies, the remaining 12 without apparent etiology. In 5 cryptic angiomas suspected from angiograms CT scans. one young patient, there was later recurrence hemorrhage that resulted in death. Our experience this series review literature have led us to conclude that, normotensive hematoma, surgical intervention may be reasonable...

10.1161/01.str.17.1.51 article EN Stroke 1986-01-01

We evaluated the reproducibility calculating volume-based FDG-PET/CT parameters, i.e., metabolic tumor volume (MTV) and total lesion glycolysis (TLG), in soft tissue tumors.Fifty-three cases with tumors were analyzed retrospectively. The conditions determining lower limit of MTV fixed value SUV 2.5 or 30% SUVmax. To investigate agreement measurements by two radiologists, %difference, correlation coefficients Bland-Altman plot analyzed. compared these parameters both intra- inter-operator for...

10.1007/s11604-022-01378-8 article EN cc-by Japanese Journal of Radiology 2023-01-13

Linear accelerator-based radiotherapy has little effect on the majority of locally advanced neoplasms. Thus, novel radiosensitizer Kochi Oxydol Radiation Therapy for Unresectable Carcinomas, Type II (KORTUC II), which contains hydrogen peroxide and sodium hyaluronate, was developed. The effectiveness KORTUC treatment chemotherapy‑resistant supraclavicular lymph node metastases been previously demonstrated. present study evaluated safety in patients with recurrent breast cancer. A total 20...

10.3892/ol.2016.4589 article EN Oncology Letters 2016-05-16

Linac-based radiotherapy has a negligible effect on the majority of advanced neoplasms. Therefore, novel radiosensitization treatment Kochi Oxydol Radiation Therapy for Unresectable Carcinomas II (KORTUC II), which utilizes hydrogen peroxide and sodium hyaluronate was developed. The effectiveness KORTUC chemotherapy‑resistant supraclavicular lymph node metastases recurrent breast cancers previously been demonstrated. present study evaluated safety efficacy in patients with stage IV primary...

10.3892/ol.2016.5456 article EN Oncology Letters 2016-12-01

Linac-based stereotactic radiotherapy has little effect on the majority of advanced neoplasms. Therefore, novel radiosensitizer Kochi oxydol‑radiation therapy for unresectable carcinomas (KORTUC) II, which contains hydrogen peroxide and sodium hyaluronate, was developed. The effectiveness KORTUC II treatment chemotherapy‑resistant supraclavicular lymph node metastases, recurrent breast cancer stage IV primary previously been demonstrated. present study evaluated safety efficacy patients with...

10.3892/ol.2017.6074 article EN Oncology Letters 2017-04-21

A simple general method for the synthesis of nitriles using inexpensive and easy to handle iodine (I2) is described herein. The reaction thioamides with I2 in presence triethylamine at room temperature under aerobic conditions afforded various bearing aryl, vinyl, alkyl groups good-to-excellent yields. This was also effective conversion from thioureas cyanamides.

10.1248/cpb.c20-00228 article EN Chemical and Pharmaceutical Bulletin 2020-06-30

This retrospective study aimed to investigate the validity and reliability of FDG-PET/CT visual assessment using Deauville criteria predict pathological invasiveness early lung adenocarcinoma prior surgery.Between April 2020 January 2022, 51 patients who underwent surgery for stage 0/I were enrolled. The pulmonary lesions divided into two groups according invasiveness: less invasive (including in situ minimally adenocarcinoma. We compared CT size (total solid size), SUVmax, score between...

10.1007/s11604-023-01397-z article EN cc-by Japanese Journal of Radiology 2023-02-08

Spontaneous regression (SR) of cancer is very rare, especially small cell lung (SCLC). Recently, an association paraneoplastic neurological syndrome (PNS) has been reported as a cause SR cancer, and onconeural antibodies are possible factor in the associated with PNS. We herein report first case SCLC combined anti-P/Q-type voltage-gated calcium channel (VGCC) antibody-positive Lambert-Eaton myasthenic (LEMS), subtype This suggests that may be spontaneously reduced by autoimmune response...

10.1016/j.radcr.2023.08.059 article EN cc-by Radiology Case Reports 2023-09-02

Mild encephalitis/encephalopathy with reversible splenial lesion (MERS) has not been described in lymphoma patients. A 65-year-old man refractory mantle cell (MCL) presented typical MRI features of MERS. The patient's cerebrospinal fluid contained an increased number reactive T-cells; a small MCL cells were detected by immunoglobulin heavy chain-polymerase chain reaction (IGH-PCR). His symptoms and the resolved response to ibrutinib treatment, although patient eventually died progressive...

10.2169/internalmedicine.6386-20 article EN Internal Medicine 2020-12-06

Abstract Purpose . The aim of this study was to assess the repeatability SUV normalized by liver volume (SUVL) between two receptor SPECT/CT studies performed on different days in patients with ICG-R15 values within normal range. Methods 935 who underwent scintigraphy January 2010 and August 2018 were included. Patients resection, hepatic arterial embolization or had >10% scans excluded, 38 finally included analysis. SUVL assessed using intraclass correlation coefficient (ICC) (1.1)...

10.1088/2057-1976/ad3759 article EN Biomedical Physics & Engineering Express 2024-03-25

Abstract Purpose To evaluate retrospectively the influence of percutaneous cryoablation for small renal tumors on total and affected kidney function risk factors associated with worsening kidney. Materials methods Between April 2016 March 2022, 27 patients who underwent at our institution participated in this study, which investigated time-dependent changes postoperative function. We evaluated estimated glomerular filtration rates (eGFRs) split revealed by scintigraphy using 99 m...

10.1007/s11604-024-01589-1 article EN cc-by Japanese Journal of Radiology 2024-05-15

Central nervous system (CNS) solitary fibrous tumors (SFTs) are rare but aggressive, often metastasizing to extracranial regions, with no established treatments apart from surgery. Pazopanib, a multikinase angiogenesis inhibitor, is used treat SFTs; however, its efficacy for treating CNS SFTs remains unclear. To address this issue, the of pazopanib was investigated, focusing on tumor density and size in metastases after initiation, interruption or resumption treatment. The present study...

10.3892/ol.2024.14791 article EN Oncology Letters 2024-11-06

Lung cancer associated with a cystic airspace is frequently misdiagnosed or overlooked. Adenocarcinoma, followed by squamous cell carcinoma, the most typical histologic type of lung connected to airspace. Here we present rare case pleomorphic carcinoma We encountered 74-year-old Japanese man diagnosed computed tomography (CT) as having nodule outside in lung. Several previous CT images showed that preceded nodule. Postsurgery, pathology indicated diagnosis carcinoma. Since pulmonary...

10.1016/j.radcr.2023.05.022 article EN cc-by Radiology Case Reports 2023-05-31

The aim of the present study was to compare efficacy magnetic resonance imaging (MRI) and 123I-labeled 2β-carbomethoxy-3β-(4-iodophenyl)-N-(3-fluoropropyl)nortropane single photon emission computed tomography (123I-FP-CIT SPECT) for determining clinical severity patients with multiple system atrophy Parkinsonism (MSA-P). MRI 123I-FP-CIT SPECT images from 17 MSA-P as diagnosed using Unified MSA Rating Scale part IV (UMSARS IV) score were compared. Brain scans available all 12 patients....

10.3892/br.2018.1086 article EN Biomedical Reports 2018-04-11
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