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Dive into the research topics where Toru Maeda is active.

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Featured researches published by Toru Maeda.


Journal of Radiation Research | 2013

Evaluation of microscopic tumor extension in early-stage cervical cancer: quantifying subclinical uncertainties by pathological and magnetic resonance imaging findings

Naoko Sanuki; Shogo Urabe; Hideo Matsumoto; Asami Ono; Eiji Komatsu; Noritaka Kamei; Toru Maeda

We performed a detailed analysis of hysterectomy specimens of uterine cervical cancer to determine the appropriate length of uterine body to include within the clinical target volume. Between 2008 and 2011, 54 patients with uterine cervical carcinoma underwent hysterectomy. Those with quality pre-operative magnetic resonance imaging (MRI) data were included for analysis. Tumor sizes measured by MRI and microscopy were compared with regard to brachytherapy-oriented parameters. Detailed descriptive analysis focusing on the extent of tumor involvement was also performed. A total of 31 specimens were analyzed. The median maximal tumor length measured by MRI was slightly shorter than microscopic length (19 vs. 24 mm, respectively), while the maximal radius was almost identical. No tumors with a maximal size <2 cm by MRI (n = 6) extended to the uterine body ≥ 1/3. The majority of maximal tumor length underestimation on MRI was within 1 cm. Precise tumor delineation can be made by MRI. For patients with tumors <2 cm on MRI, treating the entire uterine body length may not be necessary. A 1-cm margin around an MRI-based gross tumor seems to be adequate to cover the actual tumor involvement.


European Radiology | 2018

The scab-like sign: A CT finding indicative of haemoptysis in patients with chronic pulmonary aspergillosis?

Haruka Sato; Fumito Okada; Shunro Matsumoto; Hiromu Mori; Junji Kashiwagi; Eiji Komatsu; Toru Maeda; Haruto Nishida; Tsutomu Daa; Satoshi Ohtani; Kenji Umeki; Masaru Ando; Jun-ichi Kadota

ObjectivesThe aim of this study was to assess the CT findings that characterise haemoptysis in patients with chronic pulmonary aspergillosis (CPA).MethodsWe retrospectively identified 120 consecutive patients with CPA (84 men and 36 women, 17–89 years of age, mean age 68.4 years) who had undergone a total of 829 CT examinations between January 2007 and February 2017. In the 11 patients who underwent surgical resection, CT images were compared with the pathological results.ResultsThe scab-like sign was seen on 142 of the 829 CT scans, specifically, in 87 of the 90 CT scans for haemoptysis and in 55 of the 739 CT scans obtained during therapy evaluation. In 48 of those 55 patients, haemoptysis occurred within 55 days (mean 12.0 days) after the CT scan. In the 687 CT scans with no scab-like sign, there were only three instances of subsequent haemoptysis in the respective patients over the following 6 months. Patients with and without scab-like sign differed significantly in the frequency of haemoptysis occurring after a CT scan (p<0.0001). Pathologically, the scab-like sign corresponded to a fibrinopurulent mass or blood crust.ConclusionsThe scab-like sign should be considered as a CT finding indicative of haemoptysis.Key Points• Haemoptysis is commonly found in patients with CPA.• A CT finding indicative of haemoptysis in CPA patients is described.• Scab-like sign may identify CPA patients at higher risk of haemoptysis.


Journal of Thoracic Imaging | 2015

A Case of Diffuse Alveolar Septal Amyloidosis Associated With Multiple Myeloma.

Haruka Sato; Asami Ono; Fumito Okada; Toru Maeda; Yoshio Saburi; Shogo Urabe; Hiromu Mori

Primary amyloidosis (amyloid light-chain amyloidosis [AL amyloidosis]) is a rare condition characterized by extracellular deposition of amyloid protein comprising immunoglobulin light chain in multiple organs. Clinically evident AL amyloidosis develops during the disease course in 10% to 15% of patients with multiple myeloma.1 Thoracic manifestations of amyloidosis have 3 patterns: tracheobronchial, nodular, and diffuse alveolar septal. The diffuse alveolar septal pattern is the least common type of pulmonary amyloidosis.2 This pattern is sometimes seen in patients with multiple myeloma and is associated with a poor prognosis. We report a case involving a patient with diffuse alveolar septal amyloidosis associated with multiple myeloma. High-resolution computed tomography (HRCT) showed ground-glass opacity (GGO), interlobular septal thickening, and intralobular reticular opacity in both lungs.


Radiology | 1995

Uneven fatty replacement of the pancreas: evaluation with CT.

Shunro Matsumoto; Hiromu Mori; H Miyake; Hajime Takaki; Toru Maeda; Yasunari Yamada; M Oga


Chest | 2007

Clinical/Pathologic Correlations in 553 Patients With Primary Centrilobular Findings on High-Resolution CT Scan of the Thorax

Fumito Okada; Yumiko Ando; Sachie Yoshitake; Asami Ono; Shuichi Tanoue; Shunro Matsumoto; Masaki Wakisaka; Toru Maeda; Hiromu Mori


American Journal of Roentgenology | 2004

Thoracic CT Findings of Adult T-Cell Leukemia or Lymphoma

Fumito Okada; Yumiko Ando; Yoshiyuki Kondo; Shunro Matsumoto; Toru Maeda; Hiromu Mori


Radiology | 2006

Pulmonary CT Findings in 320 Carriers of Human T-Lymphotropic Virus Type 1

Fumito Okada; Yumiko Ando; Sachie Yoshitake; Shinji Yotsumoto; Shunro Matsumoto; Masaki Wakisaka; Toru Maeda; Hiromu Mori


Journal of Radiation Research | 2012

Association of Computed Tomography-detected Pulmonary Interstitial Changes with Severe Radiation Pneumonitis for Patients Treated with Thoracic Radiotherapy

Naoko Sanuki; Asami Ono; Eiji Komatsu; Noritaka Kamei; Shinji Akamine; Tohru Yamazaki; Syunji Mizunoe; Toru Maeda


European Radiology | 2009

Clinical and pulmonary thin-section CT findings in acute Klebsiella pneumoniae pneumonia.

Fumito Okada; Yumiko Ando; Koichi Honda; Tomoko Nakayama; Maki Kiyonaga; Asami Ono; Shuichi Tanoue; Toru Maeda; Hiromu Mori


Chest | 2011

Clinical and Pulmonary Thin-Section CT Findings in Acute Klebsiella pneumoniae Pneumonia

Asami Ono; Yumiko Ando; Fumito Okada; Tomoko Nakayama; Toru Maeda; Hiromu Mori

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