Osamu Tanaka
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View article: Changes in Apparent Diffusion Coefficient after Radiation Therapy for Bone Metastases: A Comparative Study of SBRT and Conventional RT
Changes in Apparent Diffusion Coefficient after Radiation Therapy for Bone Metastases: A Comparative Study of SBRT and Conventional RT Open
View article: Impact of stomatitis on pain relief and nutrition in palliative radiotherapy using quad shot: a prospective study
Impact of stomatitis on pain relief and nutrition in palliative radiotherapy using quad shot: a prospective study Open
Quad Shot (QS) is effective in treating head and neck cancer; however, few prospective studies have been conducted in this direction. Further, no studies have investigated tumor pain and stomatitis pain separately. We prospectively investi…
View article: CT-like MR images to assess changes after radiotherapy for bone metastasis: a case report
CT-like MR images to assess changes after radiotherapy for bone metastasis: a case report Open
Setting the echo time to zero allows for the acquisition of bone images that were otherwise difficult to obtain with conventional MRI and clear visualization of CT-like MR images. This technique is mainly useful for detecting compression f…
View article: Hemostatic palliative radiotherapy for gastric cancer: A literature review
Hemostatic palliative radiotherapy for gastric cancer: A literature review Open
View article: Right and Left Coronary and Conus Arteries Originating from Three Separate Ostia in the Right Valsalva Sinus in a Japanese Cadaver: A Case Study with Literature Review
Right and Left Coronary and Conus Arteries Originating from Three Separate Ostia in the Right Valsalva Sinus in a Japanese Cadaver: A Case Study with Literature Review Open
A rare case of an anomalous location of the orifice of the coronary artery was found in a 99-year-old male cadaver undergoing routine dissection. The presence of the right coronary artery (RCA), left coronary artery (LCA), and conus artery…
View article: Evaluation of Liver Functionality after Liver Stereotactic Body Radiation Therapy (SBRT) Using Blood Tests and Imaging Examinations
Evaluation of Liver Functionality after Liver Stereotactic Body Radiation Therapy (SBRT) Using Blood Tests and Imaging Examinations Open
View article: Rare case of single left coronary artery in a Japanese cadaver
Rare case of single left coronary artery in a Japanese cadaver Open
A single left coronary artery with a single orifice in the left aortic sinus was observed during anatomical practice in an 81-year-old male Japanese cadaver. The single left coronary artery bifurcated into the anterior interventricular bra…
View article: Stereotactic body radiation therapy to the spine: contouring the cauda equina instead of the spinal cord is more practical as the organ at risk
Stereotactic body radiation therapy to the spine: contouring the cauda equina instead of the spinal cord is more practical as the organ at risk Open
A portion of the spinal fluid is also included when the spinal canal is set as the OAR. Thus, the PTV coverage rate will be poor if the tumor is in contact with the spinal canal. However, the PTV coverage rate increases if only the cauda e…
View article: Evaluation of liver functionality after liver stereotactic body radiation therapy (SBRT) using blood tests and imaging examinations
Evaluation of liver functionality after liver stereotactic body radiation therapy (SBRT) using blood tests and imaging examinations Open
Background Several studies have shown that liver function can be evaluated after hepatic stereotactic body radiation therapy (SBRT) using galactosyl human serum albumin (GSA) liver scintigraphy and Gd-EOB-DTPA-enhanced magnetic resonance i…
View article: Effect of stomach size on organs at risk in pancreatic stereotactic body radiotherapy
Effect of stomach size on organs at risk in pancreatic stereotactic body radiotherapy Open
View article: Effect of stomach size on organs at risk in pancreatic stereotactic body radiotherapy
Effect of stomach size on organs at risk in pancreatic stereotactic body radiotherapy Open
Background: In clinical practice, the organs at risk (OARs) should be carefully determined when performing pancreatic stereotactic body radiotherapy (SBRT). We conducted a simulation study to examine the effect of the stomach size on the r…
View article: Hemostatic Radiotherapy for Gastric Cancer: Relationship Between Diffusion-Weighted Magnetic Resonance Images and Tumor Markers
Hemostatic Radiotherapy for Gastric Cancer: Relationship Between Diffusion-Weighted Magnetic Resonance Images and Tumor Markers Open
Introduction: Pretreatment diagnosis by diffusion-weighted magnetic resonance imaging (DW-MRI) is useful to determine the effect of chemotherapy. Here we investigated the relationship among DW-MRI, endoscopy, and tumor markers. Patients: E…
View article: Hemostasis radiotherapy for gastric cancer: Usefulness of the gastric cancer to spleen apparent diffusion coefficient ratio
Hemostasis radiotherapy for gastric cancer: Usefulness of the gastric cancer to spleen apparent diffusion coefficient ratio Open
View article: Adrenal Stereotactic Body Radiation Therapy: The Effects of a Full and Empty Stomach on Radiation Dose to Organs at Risk
Adrenal Stereotactic Body Radiation Therapy: The Effects of a Full and Empty Stomach on Radiation Dose to Organs at Risk Open
View article: Monomorphic ventricular tachycardia induced by tilt table testing in a patient with syncope and normal heart
Monomorphic ventricular tachycardia induced by tilt table testing in a patient with syncope and normal heart Open
Ventricular tachycardia induced by tilt table testing.
View article: Effect of computed tomography value error on dose calculation in adaptive radiotherapy with Elekta X‐ray volume imaging cone beam computed tomography
Effect of computed tomography value error on dose calculation in adaptive radiotherapy with Elekta X‐ray volume imaging cone beam computed tomography Open
Purpose We evaluated the effect of changing the scan mode of the Elekta X‐ray volume imaging cone beam computed tomography (CBCT) on the accuracy of dose calculation, which may be affected by computed tomography (CT) value errors in three …
View article: Adrenal Stereotactic Body Radiation Therapy: The Effects of a Full and Empty Stomach on Radiation Dose to Organs at Risk
Adrenal Stereotactic Body Radiation Therapy: The Effects of a Full and Empty Stomach on Radiation Dose to Organs at Risk Open
BackgroundStereotactic Body Radiation Therapy (SBRT) has been reported to be curative in the treatment of oligometastases to the adrenal glands. However, the adrenals are surrounded by radiation-sensitive organs. We performed an Organ at R…
View article: Adrenal Stereotactic Body Radiation Therapy: The Effects of a Full and Empty Stomach on Radiation Dose to Organs at Risk
Adrenal Stereotactic Body Radiation Therapy: The Effects of a Full and Empty Stomach on Radiation Dose to Organs at Risk Open
Introduction Adrenal recurrence after radical resection of the primary lesion is common. However, the adrenal glands are surrounded by radiosensitive organs such as the pancreas, kidneys, small intestine, and stomach. Treatment planning th…
View article: A gross anatomical study of the styloid process of the temporal bone in Japanese cadavers
A gross anatomical study of the styloid process of the temporal bone in Japanese cadavers Open
The average length of SP was 27.04 mm in the Japanese population and about 30% of the Japanese presented SP ≥ 30 mm. Male had significantly higher rate than female among the SP ≥ 30 mm, and female had significantly longer SPs than male amo…
View article: Vascular events from carotid artery atherosclerosis after radiation therapy for laryngeal and hypopharyngeal cancer: the incidence and risk factors.
Vascular events from carotid artery atherosclerosis after radiation therapy for laryngeal and hypopharyngeal cancer: the incidence and risk factors. Open
In this retrospective cohort study, we evaluated the incidence of vascular events from carotid artery atherosclerosis after radiotherapy indication for laryngeal and hypopharyngeal cancer. From January 2007 to December 2016, we investigate…
View article: Variations in the gonadal artery with a single common trunk: embryological hypotheses by observation
Variations in the gonadal artery with a single common trunk: embryological hypotheses by observation Open
Knowledge of the variations in RTAs has important clinical consequences for invasive and non-invasive arterial procedures. In addition, this variation provides a new interpretation of the embryology of the gonadal artery. Variations simila…
View article: Importance of Percutaneous Endoscopic Gastrostomy (PEG) in Nutritional Management of Patients with Advanced Head and Neck Cancer
Importance of Percutaneous Endoscopic Gastrostomy (PEG) in Nutritional Management of Patients with Advanced Head and Neck Cancer Open
View article: Hemostatic radiotherapy for inoperable gastric cancer: a pilot study
Hemostatic radiotherapy for inoperable gastric cancer: a pilot study Open
Objective: Standard treatment for progressive gastric cancer with bleeding includes hemostatic radiotherapy (RT); however, the only prospective study using a fixed dose with fractions during hemostatic RT did not introduce re-irradiation. …
View article: PO-176: Usefulness of SBRT treatment plan combined with 99mTc-GSA for hepatocellular carcinoma
PO-176: Usefulness of SBRT treatment plan combined with 99mTc-GSA for hepatocellular carcinoma Open
View article: Dosimetric evaluation of the heart and left anterior descending artery dose in radiotherapy for Japanese patients with breast cancer
Dosimetric evaluation of the heart and left anterior descending artery dose in radiotherapy for Japanese patients with breast cancer Open
Intensity-modulated radiotherapy (IMRT) has been used for breast cancer as well as in field-in-field techniques. Few dosimetric comparison studies have been conducted using IMRT and volumetric modulated arc therapy (VMAT) for Japanese pati…
View article: 99m-Technetium galactosyl human serum albumin scanning to evaluate liver function after stereotactic body radiotherapy for hepatocellular carcinoma: A case report
99m-Technetium galactosyl human serum albumin scanning to evaluate liver function after stereotactic body radiotherapy for hepatocellular carcinoma: A case report Open
The primary choice among treatment options for liver malignancies is surgery. However, if surgery cannot be performed, Stereotactic body radiotherapy (SBRT) may be effective. 99m-technetium galactosyl human serum albumin (GSA) single-photo…
View article: Scores of Child–Pugh Classification Impact Overall Survival After Stereotactic Body Radiation Therapy for Primary and Metastatic Liver Tumors
Scores of Child–Pugh Classification Impact Overall Survival After Stereotactic Body Radiation Therapy for Primary and Metastatic Liver Tumors Open
View article: Adduction-Abduction Asymmetry in Saccades During Video-Oculographic Monocular Recording: A Word of Caution
Adduction-Abduction Asymmetry in Saccades During Video-Oculographic Monocular Recording: A Word of Caution Open
In eye movement examination, video-oculographic monocular recording has become more popular than electro-oculographic binocular recording. The aim of this study was to examine the characteristics of monocular movements recorded using video…
View article: EP-1278 Effect of heart`s dose reduction by IMRT in postoperative radiotherapy for left-sided breast cancer
EP-1278 Effect of heart`s dose reduction by IMRT in postoperative radiotherapy for left-sided breast cancer Open