One shot of carbon-ion radiotherapy cured a 6-cm chemo-resistant metastatic liver tumor: a case of breast cancer
We describe the case of a 54-year-old woman with systemic therapy-resistant liver metastasis from breast cancer successfully treated with a single shot of 36-GyE carbon-ion radiotherapy and surviving more than 8 years without local recurrence. This case represents a good example of the usefulness and safety of carbon-ion radiotherapy, and who might benefit from local therapy. (Source: Japanese Journal of Radiology)
Source: Japanese Journal of Radiology - July 28, 2015 Category: Radiology Source Type: research

Breast fibromatosis associated with breast implants
Abstract Fibromatosis refers to an extra-abdominal desmoid tumor or aggressive fibromatosis. Breast fibromatosis can develop in association with the capsule around a breast implant, although reports of cases of fibromatosis associated with breast implants are rare. As the demand for breast augmentation has increased, it is important to understand the diseases associated with breast implants. In the present report, we describe a case of breast fibromatosis that developed adjacent to a breast implant and demonstrated a relatively well-defined border even though it invaded the surrounding structures. We also explore ...
Source: Japanese Journal of Radiology - July 27, 2015 Category: Radiology Source Type: research

Multifocal soft tissue Langerhans’ cell histiocytosis treated with PET-CT based conformal radiotherapy
Conclusion RT is a treatment choice in multi-system LCH as well as solitary lesions. Low-dose RT is adequate to control large masses of LCH including soft tissue and lymph nodes. (Source: Japanese Journal of Radiology)
Source: Japanese Journal of Radiology - July 25, 2015 Category: Radiology Source Type: research

Quantitative differentiation of benign and malignant mammographic circumscribed masses using intensity histograms
Conclusion On mammography, circumscribed masses can be diagnosed with moderate accuracy using the intensity histogram SD. Masses with SD below the minimum of breast cancer can be roughly diagnosed as clinically benign. (Source: Japanese Journal of Radiology)
Source: Japanese Journal of Radiology - July 25, 2015 Category: Radiology Source Type: research

Imaging of congenital pancreatic lesions: emphasis on key imaging features
This article reviews normal pancreatic anatomy, imaging findings of congenital pancreatic lesions, including congenital pancreatic anomalies, congenital pancreatic ductal variants, pancreatic contour variants, congenital pancreatic cysts, and mimics of pancreatic lesions with emphasis on key imaging features. (Source: Japanese Journal of Radiology)
Source: Japanese Journal of Radiology - July 22, 2015 Category: Radiology Source Type: research

The fractured gastrostomy catheter
(Source: Japanese Journal of Radiology)
Source: Japanese Journal of Radiology - July 16, 2015 Category: Radiology Source Type: research

The features of intestinal tuberculosis by contrast-enhanced ultrasound
Conclusion CEUS found detailed patterns of bowel wall enhancement of intestinal tuberculosis and had the potential to provide useful information for the diagnosis of suspected patients. (Source: Japanese Journal of Radiology)
Source: Japanese Journal of Radiology - July 15, 2015 Category: Radiology Source Type: research

Assessment of the treatment response of spinal meningiomas after radiosurgery focusing on serial MRI findings
Conclusions SRS resulted in successful local tumor control in all patients, although the follow-up period was not long. Changes in T2SI and contrast enhancement patterns of the tumors were evaluated on serial MRI. In addition, close follow-up with MRI is desirable to monitor intramedullary signal changes in cases of spinal meningiomas with a wider contact area with the spinal cord. (Source: Japanese Journal of Radiology)
Source: Japanese Journal of Radiology - July 14, 2015 Category: Radiology Source Type: research

Low contrast dose protocol involving a 100 kVp tube voltage for hypervascular hepatocellular carcinoma in patients with renal dysfunction
Abstract Purpose To evaluate the feasibility of a 20 % reduced contrast dose hepatic arterial phase (HAP) CT for hypervascular hepatocellular carcinoma (HCC) with 100 kVp. Materials and methods The study included 97 patients with hypervascular HCC who underwent dynamic CT, including HAP scanning. The 54 patients had an estimated glomerular filtration rate (eGFR) of ≥60 were scanned with our conventional 120 kVp protocol. The other 43 patients (eGFR 
Source: Japanese Journal of Radiology - July 11, 2015 Category: Radiology Source Type: research

Results of surgery plus postoperative radiotherapy for patients with malignant parotid tumor
Conclusion Favorable locoregional control was achieved for patients with malignant parotid tumors who underwent surgery plus postoperative radiotherapy. Patients with high-grade tumors frequently experienced distant metastases and prognosis was poor. (Source: Japanese Journal of Radiology)
Source: Japanese Journal of Radiology - July 10, 2015 Category: Radiology Source Type: research

Multicentre study of 18F-FDG-PET/CT prostate incidental uptake
Conclusion Because PIU values are indicative of malignancy for a substantial percentage of patients, further investigation is required. (Source: Japanese Journal of Radiology)
Source: Japanese Journal of Radiology - July 8, 2015 Category: Radiology Source Type: research

Balloon-assisted packing of wide-neck aneurysms with a mixture of n -butyl cyanoacrylate, Lipiodol, and ethanol: an experimental study
Conclusion Although at a preliminary stage, balloon-assisted NLE injection is feasible for packing a wide-neck aneurysm. (Source: Japanese Journal of Radiology)
Source: Japanese Journal of Radiology - July 4, 2015 Category: Radiology Source Type: research

Modified Y-configured stents with the waffle-cone technique by use of Solitaire ® stent for patients with wide-necked bifurcation aneurysms
We report three cases of wide-necked bifurcation aneurysms that were successfully treated by use of the Solitaire® stent. (Source: Japanese Journal of Radiology)
Source: Japanese Journal of Radiology - July 4, 2015 Category: Radiology Source Type: research

Can microcatheters be cleaned for reuse after NBCA embolization? Cleaning technique with gelatin sponge particles
Conclusions Applying the new cleaning technique utilizing gelatin sponge particles to microcatheters after NBCA ensures that they are clean enough to be reused. (Source: Japanese Journal of Radiology)
Source: Japanese Journal of Radiology - June 29, 2015 Category: Radiology Source Type: research

CT prediction of the degree of ovarian torsion
Abstract Purpose Torsion angle determines the incidence of necrosis among patients with ovarian torsion. The purpose of this study was to evaluate the association between torsion angle and findings on CT scan. Materials and methods We retrospectively reviewed CT scan findings obtained less than 36 h before surgery for 31 patients with ovarian torsion. Ovarian torsion angles measured intraoperatively ranged from 90° to 1260°. Ovaries with torsion angles less than 360° rarely develop necrosis. Patients were divided into two groups accordin...
Source: Japanese Journal of Radiology - June 29, 2015 Category: Radiology Source Type: research

The efficacy of CT for detection of right ventricular dysfunction in acute pulmonary embolism, and comparison with cardiac biomarkers
Abstract Purpose The purpose of this study was to evaluate results from computed tomography pulmonary angiography (CTPA) indicative of right ventricular dysfunction (RVD), and to assess the relationship of these results with cardiac biomarkers and mortality among patients with acute PE. Materials and methods This retrospective study involved 118 patients with acute PE proved by CTPA. CTPA variables were analyzed and compared with cardiac biomarkers and echocardiography (ECHO) findings. Results Compared with ECHO, t...
Source: Japanese Journal of Radiology - June 28, 2015 Category: Radiology Source Type: research

CT findings of omental pregnancy: a case report
We report the case of an 18-year-old girl with secondary omental pregnancy who was assessed by use of contrast-enhanced computed tomography (CT). For the first time, we report the contrast-enhanced CT features of omental pregnancy. Inhomogeneous mild enhancement was observed, which is different from other kinds of ectopic pregnancy, for which enhancement is often substantial. Possible reasons for the discrepancy are discussed, as also is differential diagnosis of omental pregnancy. (Source: Japanese Journal of Radiology)
Source: Japanese Journal of Radiology - June 26, 2015 Category: Radiology Source Type: research

Transcatheter arterial embolization of hypervascular tumors with HepaSphere: prospective multicenter open label clinical trial of microspheres in Japan
Conclusion TAE for hypervascular tumors with the HepaSphere microspheres was feasible and rarely caused major adverse events. Trial registration: This trial was registered in JAPIC Clinical Trials Information (JapicCTI-111534). (Source: Japanese Journal of Radiology)
Source: Japanese Journal of Radiology - June 26, 2015 Category: Radiology Source Type: research

Uterine artery embolization by use of porous gelatin particles for symptomatic uterine leiomyomas: comparison with hand-cut gelatin sponge particles
Conclusion UAE with PGP is safe, and as effective as conventional gelatin sponge particles. (Source: Japanese Journal of Radiology)
Source: Japanese Journal of Radiology - June 23, 2015 Category: Radiology Source Type: research

Proximal LAD atherosclerosis: milking-like effect of the septal perforator branches
(Source: Japanese Journal of Radiology)
Source: Japanese Journal of Radiology - June 17, 2015 Category: Radiology Source Type: research

Diffusion-weighted MR imaging of mediastinal lymphadenopathy in children
Conclusion Diffusion-weighted MR imaging is a promising non-invasive imaging modality that can be used for differentiation of malignant from benign mediastinal lymphadenopathy in children. (Source: Japanese Journal of Radiology)
Source: Japanese Journal of Radiology - June 12, 2015 Category: Radiology Source Type: research

A case of kaposiform hemangioendothelioma at the sigmoid colon
We report a case of kaposiform hemangioendothelioma (KHE) occurring at the sigmoid colon in an 8-year-old male. He had experienced lower abdominal pain and fever for several days. Contrast-enhanced CT images revealed a well-enhanced mass involving several large and small cystic parts with thin, enhanced walls at the sigmoid colon. The diagnosis was made histopathologically after surgical resection; the cystic parts corresponded to dilated lymphatic vessels. KHE is a rare, locally aggressive, vascular tumor that usually occurs in the soft tissues of the extremities. However, a case occurring in the bowel is extremely rare, ...
Source: Japanese Journal of Radiology - June 11, 2015 Category: Radiology Source Type: research

An analysis of apparent diffusion coefficient in the myometrium of normal uterus between the menopausal and premenopausal phases
Abstract Objective To investigate the apparent diffusion coefficients (ADCs) of normal uterine myometrium between menopausal phase and premenopausal phases (menstrual, proliferating and secretory phases). Materials and methods Magnetic resonance images of 96 healthy women were obtained with a 3.0T MRI device. According to their physiological cycles, they were further divided into four groups: group A (menopausal phase), group B (menstrual phase), group C (proliferating phase), and group D (secretory phase). The ADC values were measured using a GE post-pr...
Source: Japanese Journal of Radiology - June 3, 2015 Category: Radiology Source Type: research

Fluoroscopically guided large balloon dilatation for treating congenital esophageal stenosis in children
Conclusions Our study showed that fluoroscopically guided large balloon dilatation seems to be a simple and effective primary treatment technique for congenital esophageal stenosis in children. Esophageal ruptures were not uncommon although they were not fatal. (Source: Japanese Journal of Radiology)
Source: Japanese Journal of Radiology - June 2, 2015 Category: Radiology Source Type: research

Irreversible electroporation for nonthermal tumor ablation in patients with hepatocellular carcinoma: initial clinical experience in Japan
Conclusion The results of this study suggest that image-guided percutaneous IRE can achieve satisfactory local disease control, particularly for small HCCs, and is well tolerated by patients. (Source: Japanese Journal of Radiology)
Source: Japanese Journal of Radiology - June 2, 2015 Category: Radiology Source Type: research

Mediastinal paraganglioma
We present a case of mediastinal paraganglioma with radiologic–pathologic correlation. A 48-year-old woman was found incidentally to have a middle mediastinal mass on CT. The mass showed iso-signal intensity compared to that of muscle on T1-weighted images and high signal intensity on T2-weighted images. The lesion showed intermediate intensity on diffusion-weighted imaging, and its apparent diffusion coefficient was 1.72 × 10−3 mm2/s. A contrast-enhanced dynamic study revealed a rapid peak and washout enhancement pattern. 18F-FDG-PET revealed abnormal uptake in the mediastinal tumor with a maxi...
Source: Japanese Journal of Radiology - May 29, 2015 Category: Radiology Source Type: research

Diagnostic value of contrast-enhanced cardiac magnetic resonance in patients with acute coronary syndrome with normal coronary arteries
Conclusion In patients with a first episode of ACS with normal coronary arteries, in the absence of pre-existing comorbidities, CMR has a high negative predictive value, often without significant alterations. In particular, the CMR LGE for AMI is infrequent and has predominantly focal distribution. However, further multidisciplinary studies are needed to define the prognostic value of CMR. (Source: Japanese Journal of Radiology)
Source: Japanese Journal of Radiology - May 29, 2015 Category: Radiology Source Type: research

Evaluation of blood volume by use of blood oxygen level-dependent magnetic resonance imaging in a cuff-compression model: usefulness of calculated echo time image
Conclusion The effect of blood oxygenation could be minimized using cTE0. Thus, signal intensity changes of cTE0 reflected changes in blood volume more specifically. (Source: Japanese Journal of Radiology)
Source: Japanese Journal of Radiology - May 27, 2015 Category: Radiology Source Type: research

Erratum to: Preliminary findings of arterial embolization with balloon-occluded and flow-dependent histoacryl glue embolization in a swine model
(Source: Japanese Journal of Radiology)
Source: Japanese Journal of Radiology - May 21, 2015 Category: Radiology Source Type: research

Primary intraosseous meningioma in the calvaria: morphological feature changes on magnetic resonance images over several years
We report the case of a sizable PIM in the calvaria that progressively enlarged over several years and presented temporal changes in the morphological features on magnetic resonance images. Along with discussing the case, we further emphasize the potential pitfalls of diagnosing a PIM in the calvaria. (Source: Japanese Journal of Radiology)
Source: Japanese Journal of Radiology - May 20, 2015 Category: Radiology Source Type: research

Comparison of myocardial F-18 FDG uptake between overnight and non-overnight fasting in non-diabetic healthy subjects
Conclusion Both overnight and non-overnight fasts are not adequate for suppressing the physiological uptake of FDG by the myocardium. (Source: Japanese Journal of Radiology)
Source: Japanese Journal of Radiology - May 15, 2015 Category: Radiology Source Type: research

Differences between glioblastomas and primary central nervous system lymphomas in 1 H-magnetic resonance spectroscopy
Abstract Purpose The present study aimed to distinguish between glioblastomas and primary central nervous system lymphomas (PCNSLs) using 1H-magnetic resonance spectroscopy (MRS), especially glutamate (Glu)/creatine (Cr) and Glu/Glu+glutamine (Gln) ratios. Materials and methods A total of 46 patients (31 cases diagnosed with glioblastoma, 15 with PCNSL) were examined by in vivo single-voxel proton 1H-MRS with a 3-T MR imaging system. Differences in absolute concentration of Cr, choline/Cr, lipid (1.3 ppm)/Cr, Glu+Gln/Cr, Glu/Cr, and Glu/Glu+Gln rati...
Source: Japanese Journal of Radiology - May 13, 2015 Category: Radiology Source Type: research

Effect of transcatheter arterial embolization with a mixture of n -butyl cyanoacrylate, lipiodol, and ethanol on the vascular wall: macroscopic and microscopic studies
Conclusion The damage to the vascular wall caused by NLE112 was milder than that by NL11, implying the adverse effects of NLE112 are within tolerable limits. (Source: Japanese Journal of Radiology)
Source: Japanese Journal of Radiology - May 12, 2015 Category: Radiology Source Type: research

Correlating Parkinson’s disease motor symptoms with three-dimensional [ 18 F]FP-CIT PET
Conclusions FP-CIT uptake in specific basal ganglia structures strongly correlated with the UPDRS III motor score. Among these, the left caudate nucleus exhibited the strongest relationship with axial and akinetic-rigidity PD symptoms. (Source: Japanese Journal of Radiology)
Source: Japanese Journal of Radiology - May 8, 2015 Category: Radiology Source Type: research

Can CT angiography reconstructed from CT perfusion source data on a 320-section volume CT scanner replace conventional CT angiography for the evaluation of intracranial arteries?
Conclusion For the evaluation of intracranial arteries using DSA as the gold standard, perfusion CTA yields image quality and vascular visualization similar to conventional CTA at an acceptable radiation dose. (Source: Japanese Journal of Radiology)
Source: Japanese Journal of Radiology - May 8, 2015 Category: Radiology Source Type: research

Tuberculous bronchonodal fistula in adult patients: CT findings
Conclusion Bronchonodal fistula can occur as a complication of active pulmonary TB with TB lymphadenitis in adult patients, especially in the elderly. The fistulas usually involved the right side. The lobar bronchus was frequently involved on the right side and the main bronchus on the left side. (Source: Japanese Journal of Radiology)
Source: Japanese Journal of Radiology - May 7, 2015 Category: Radiology Source Type: research

Renal cell carcinomas with t(6;11) (p21;q12): presentation of two cases with computed tomography findings
Abstract Renal cell carcinomas with t(6;11) (p21;q12) translocation are extremely rare and primarily affect children and young adults. To our knowledge, there has been no case report focusing on the imaging manifestations in the existing literature. Hence, we describe the computed tomography findings of two young adults. (Source: Japanese Journal of Radiology)
Source: Japanese Journal of Radiology - May 7, 2015 Category: Radiology Source Type: research

Results of sequential chemoradiotherapy for intracranial germinoma
Conclusion Treatment of 24 Gy of sequential CRT for intracranial germinoma might be promising as an alternative to radiotherapy alone. Spinal irradiation may not be necessary for patients who had no spinal dissemination and who were treated with CRT. (Source: Japanese Journal of Radiology)
Source: Japanese Journal of Radiology - May 6, 2015 Category: Radiology Source Type: research

Preliminary findings of arterial embolization with balloon-occluded and flow-dependent histoacryl glue embolization in a swine model
Conclusion The B-glue technique can efficiently control NBCA delivery with lower rates of reflux. (Source: Japanese Journal of Radiology)
Source: Japanese Journal of Radiology - May 3, 2015 Category: Radiology Source Type: research

CT and MRI findings for Brunner’s gland hamartoma: report of three cases
We describe computed tomography (CT) and magnetic resonance imaging (MRI) findings for three patients with BGH. In all three cases, CT and MRI revealed internal cystic changes within the mass and a stalk originating in the duodenal bulb. These findings may be useful for diagnosis of BGH. (Source: Japanese Journal of Radiology)
Source: Japanese Journal of Radiology - April 25, 2015 Category: Radiology Source Type: research

A case of severe hemoptysis after stereotactic body radiotherapy for peripherally located stage I non-small cell lung cancer
We report here a rare case of hemoptysis after SBRT even though the lung tumor was peripherally located. A lung nodule of a 79-year-old man was accidentally found at the periphery of the left upper lobe. A computed tomography-guided biopsy of this nodule provided confirmation of the diagnosis of poorly differentiated adenocarcinoma. The clinical diagnosis was T1bN0M0, stage I primary lung cancer. The patient was treated with SBRT using helical tomotherapy at a dose of 60 Gy in 6 fractions (i.e., BED10 = 120). He obtained a complete response and did not experience recurrence. However, the patient suffered mas...
Source: Japanese Journal of Radiology - April 22, 2015 Category: Radiology Source Type: research

Fecal tag CT colonography with a limited 2-day bowel preparation following incomplete colonoscopy
Conclusion FT-CTC performed after a limited 2-day bowel preparation seems to be a technically feasible, safe and acceptable procedure that allows a complete a colonic study in incomplete CC patients. (Source: Japanese Journal of Radiology)
Source: Japanese Journal of Radiology - April 21, 2015 Category: Radiology Source Type: research

Community-acquired pneumonia: a correlative study between chest radiographic and HRCT findings
Conclusion The chest radiographic interpretations of GGO and airspace consolidation were influenced by the thickness of lesions, and those of nodules and thickening of bronchial walls were influenced by coexisting GGO and airspace consolidation and may contribute to a misinterpretation of these lesions and an incorrect diagnosis of CAP. (Source: Japanese Journal of Radiology)
Source: Japanese Journal of Radiology - April 19, 2015 Category: Radiology Source Type: research

Perforated Littre’s hernia diagnosed on imaging: case report and review of literature
We report the clinical details and imaging findings of a case of perforated Littre’s hernia presenting as lower abdominal wall cellulitis in a 50-year-old male. Findings included herniation of an oral contrast opacified blind-ending pouch arising from the anti-mesenteric border of the distal ileum into the right inguinal canal, with extravasation of oral contrast. There were adjacent inflammatory changes with subcutaneous emphysema extending up to the right anterior chest wall. Meckel’s diverticulum is rarely diagnosed preoperatively on imaging. We highlight the importance of computed tomography in imaging Meck...
Source: Japanese Journal of Radiology - April 19, 2015 Category: Radiology Source Type: research

Correlation of right ventricular dysfunction on acute pulmonary embolism with pulmonary artery computed tomography obstruction index ratio (PACTOIR) and comparison with echocardiography
Abstract Purpose The aim of this study was to determine the pulmonary artery computed tomography obstruction index ratio (PACTOIR) in patients who have been diagnosed with acute pulmonary embolism (APE) with multi-slice computed tomography (MSCT) and to research the predetermination efficiency of right ventricular dysfunction (RVD) compared with echocardiography (ECHO). Materials and methods One hundred patients (50 males, 50 females), who had ECHO findings and were diagnosed with APE, were subsequently examined in this study. Patients who had RVD on ECH...
Source: Japanese Journal of Radiology - April 17, 2015 Category: Radiology Source Type: research

Application of ultrasound elastography for determining carpal tunnel syndrome severity
Abstract Objective To evaluate grey-scale and elastography ultrasound imaging findings in patients with CTS compared to nerve conductive studies. Method Sixty median nerves of 31 cases with confirmed CTS and 44 median nerves in 22 controls (healthy volunteers) who had no clinical evidence of CTS were evaluated. An expert radiologist performed all US evaluations. The RGB image is a three-dimensional matrix. A colour image RGB is an M × N × 3 array of colour pixels. The total pixels, total blue and red pixels, and blue and r...
Source: Japanese Journal of Radiology - April 17, 2015 Category: Radiology Source Type: research

Prediction error and required internal margin provided for irregular respiratory movements: a phantom study
Conclusion The RPM and 4DCT system has a risk of prediction error, which may result from the complicated amplitude irregularity of respiratory movement. (Source: Japanese Journal of Radiology)
Source: Japanese Journal of Radiology - April 15, 2015 Category: Radiology Source Type: research

High resolution CT study of the chorda tympani nerve and normal anatomical variation
Conclusions Reproducible measurements demonstrate variability of the CTN in both its origin from the mastoid segment of CNVII and its lateral-most course. Precise description of the course of the CTN with HRCT may be useful for planning of otologic surgery and limiting inadvertent nerve injury. (Source: Japanese Journal of Radiology)
Source: Japanese Journal of Radiology - April 8, 2015 Category: Radiology Source Type: research

Asymptomatic metastasis to cricoid from prostate carcinoma: an incidental finding detected on 18F-choline PET/CT
We describe a case of asymptomatic prostate carcinoma metastasis to the right cricoid cartilage detected on 18F-fluorocholine PET/CT. This was histologically proven on open biopsy and the patient was offered local radiotherapy. (Source: Japanese Journal of Radiology)
Source: Japanese Journal of Radiology - March 28, 2015 Category: Radiology Source Type: research

Pleurodesis: indications and radiologic appearance
Abstract Pleurodesis is frequently performed to prevent recurrence of pneumothorax or recurrent pleural effusion in benign or malignant conditions. In essence, it involves producing an area of adhesion between the parietal and the visceral layers of the pleura. The approach to this procedure can be divided into chemical and mechanical methods. Chemical pleurodesis is performed by introducing various substances such as talc, bleomycin, povidone iodine or other chemicals into the pleural space typically using a pleural catheter. The instilled substances cause inflammation of the parietal and the visceral layers of t...
Source: Japanese Journal of Radiology - March 20, 2015 Category: Radiology Source Type: research