Current radiologist workload and the shortages in Japan: how many full-time radiologists are required?
Conclusion The number of full-time certified diagnostic radiologists for CT and MRI interpretation in Japan is insufficient. Centralized radiation therapy facilities may be more efficient for meeting the increasing demand. (Source: Japanese Journal of Radiology)
Source: Japanese Journal of Radiology - March 19, 2015 Category: Radiology Source Type: research

A successful case of liver biopsy via the right femoral vein using the Quick-Core biopsy needle
Abstract A 35-year-old male with ascites and coagulopathy underwent transjugular liver biopsy (TJLB) for severe hepatic dysfunction. However, the acute angle of the inferior vena cava and hepatic veins (HVs) prevented insertion of a 14-gauge inner stiffening metallic cannula into the HV. He then underwent successful liver biopsy by right femoral vein access (transfemoral liver biopsy) using a TJLB device without complications and was pathologically diagnosed with nonalcoholic steatohepatitis. (Source: Japanese Journal of Radiology)
Source: Japanese Journal of Radiology - March 17, 2015 Category: Radiology Source Type: research

Information of prostate biopsy positive core: does it affect MR detection of prostate cancer on using 3T-MRI?
Conclusion CaR and CaL from the core biopsies showed a stronger relationship to detection of the prostate cancer on 3T-MRI than the GS did. (Source: Japanese Journal of Radiology)
Source: Japanese Journal of Radiology - March 12, 2015 Category: Radiology Source Type: research

Portal hypertension caused by right common iliac artery-superior mesenteric vein fistula
Abstract Portal hypertension caused by arterio-portal fistula between the right common iliac artery and superior mesenteric vein has not been reported. Here, we report such a case in a 35-year-old male without any history of liver disease or abdominal trauma. This case was confirmed by abdominal aorta angiography and three-dimensional angiography, and was successfully treated by a covered stent implantation in the right common iliac artery to block the fistula. (Source: Japanese Journal of Radiology)
Source: Japanese Journal of Radiology - March 10, 2015 Category: Radiology Source Type: research

“Cerebellar peduncle quarter notes” formed by the superior and middle cerebellar peduncles: comparison with a diffusion tensor study of spinocerebellar degeneration
Conclusions SCP angle tended to be larger among patients with severe degeneration of the MCP. The SCP angle, quantified by observing “cerebellar peduncle quarter notes”, may be a simple index for evaluation of degeneration of the MCP. (Source: Japanese Journal of Radiology)
Source: Japanese Journal of Radiology - March 7, 2015 Category: Radiology Source Type: research

Ossification of the petrosphenoidal ligament: multidetector computed tomography findings of an unusual variation with a potential role in abducens nerve palsy
Conclusion Ossification of the PSL is not a rare finding on MDCT. This imaging technique can reliably demonstrate the imaging features of an ossified PSL. (Source: Japanese Journal of Radiology)
Source: Japanese Journal of Radiology - March 7, 2015 Category: Radiology Source Type: research

The incidence of contrast medium-induced nephropathy following endovascular aortic aneurysm repair: assessment of risk factors
Abstract Purpose The aim of the study was to investigate the incidence of contrast medium-induced nephropathy (CIN) and risk factors for CIN following endovascular abdominal aortic aneurysm repair or thoracic endovascular aortic aneurysm repair. Materials and methods After exclusion criteria, 139 (121 males, 18 females) patients aged 20–86 (median 65.5) years who underwent endovascular aortic aneurysm repair between January 2002 and September 2013 were included in this retrospective study. CIN, with ≥25 % increase in serum creatinine le...
Source: Japanese Journal of Radiology - March 6, 2015 Category: Radiology Source Type: research

Rare case of truncus arteriosus with anomalous origin of the right coronary artery from the pulmonary artery (ARCAPA) and unilateral left pulmonary artery agenesis
We report a case of truncus arteriosus associated with ARCAPA and left pulmonary artery agenesis diagnosed by cardiac computed tomography; we believe that such an unusual case with all three of these entities has never been reported before. (Source: Japanese Journal of Radiology)
Source: Japanese Journal of Radiology - March 3, 2015 Category: Radiology Source Type: research

Acknowledgment
(Source: Japanese Journal of Radiology)
Source: Japanese Journal of Radiology - March 1, 2015 Category: Radiology Source Type: research

Breast sparganosis and incidentally detected subcutaneous and intramuscular sparganosis at several sites: case report and literature review
We describe a surgically confirmed case of sparganosis in several organs including the breast, both lower extremities, anterior chest wall, inguinal area, and the psoas and gluteus muscles. Mammography, ultrasonography, and MRI imaging findings for our patient were characteristic of sparganosis. Ultrasonography revealed multiple elongated tubular hypoechoic structures with surrounding increased echogenicity. Mammographic findings included tortuous, lobular, and tubular densities. Short tau inversion recovery (STIR) MR images contained several elongated tubular tracts of high signal intensity. These imaging features were hi...
Source: Japanese Journal of Radiology - March 1, 2015 Category: Radiology Source Type: research

Nonobstructive hydrocolpos due to vesicovaginal reflux: expanding the differential diagnosis
We report the clinical details and imaging findings for a case of vesicovaginal reflux presenting as gross urocolpos in a 15-year-old female. Findings included a large fluid-filled vagina on full-bladder scan in the absence of any anatomical abnormality, which disappeared completely after micturition. It is important for radiologists to be aware of this entity as it is rarely encountered and leads to very confusing findings, which could result in an erroneous diagnosis. (Source: Japanese Journal of Radiology)
Source: Japanese Journal of Radiology - February 27, 2015 Category: Radiology Source Type: research

Visibility and variability of pleural fissures on normal digital chest radiographs of 1,000 healthy adults
Conclusion The right minor fissure was most frequently visible and exhibited variable appearances. Other pleural fissures were occasionally seen. (Source: Japanese Journal of Radiology)
Source: Japanese Journal of Radiology - February 26, 2015 Category: Radiology Source Type: research

Sonographic findings of prescrotal superficial angiomyxoma
Abstract Sonographic findings of a prescrotal superficial angiomyxoma have never been reported in the English literature. Here, we describe a case of left prescrotal superficial angiomyxoma, which was depicted on ultrasonography as a well-circumscribed, heterogeneously, and mildly echogenic, unilocular complex, posterior acoustic-enhanced, and dermally attached subcutaneous mass without increased vascular flow. (Source: Japanese Journal of Radiology)
Source: Japanese Journal of Radiology - February 24, 2015 Category: Radiology Source Type: research

CT-guided aspiration and steroid injection of symptomatic paralabral cysts of the hip
Conclusion CT-guided aspiration and steroid injection were feasible for the treatment of symptomatic paralabral cysts of the hip. During the procedures, all four cysts collapsed. (Source: Japanese Journal of Radiology)
Source: Japanese Journal of Radiology - February 19, 2015 Category: Radiology Source Type: research

Interventional radiology for critical hemorrhage in obstetrics: Japanese Society of Interventional Radiology (JSIR) procedural guidelines
This article aimed to describe the rationale for developing these guidelines and to provide the answers for clinical questions about IR procedures consisting of current available evidence and the consensus among experts. (Source: Japanese Journal of Radiology)
Source: Japanese Journal of Radiology - February 19, 2015 Category: Radiology Source Type: research

Erratum to: Congenital pericardial defect: a case of right pericardial partial absence with normal parietal pleura
(Source: Japanese Journal of Radiology)
Source: Japanese Journal of Radiology - February 18, 2015 Category: Radiology Source Type: research

Different enhancement of the hepatic parenchyma in dynamic CT for patients with normal liver and chronic liver diseases and with the dose of contrast medium based on body surface area
Abstract Purpose The purpose of this study was to characterize hepatic parenchymal enhancement for normal and diseased liver in dynamic computed tomography (CT) with the dose of contrast medium calculated on the basis of body surface area (BSA). Materials and methods The records of 328 consecutive patients who underwent triple-phase contrast-enhanced CT were retrospectively reviewed. The patients were divided into four groups: normal liver (n = 125), chronic hepatitis (CH) (n = 92), Child–Pugh grade A liver cirrhosis (LC-A) (n&n...
Source: Japanese Journal of Radiology - February 12, 2015 Category: Radiology Source Type: research

Complications related to medical devices of the abdomen and pelvis: pictorial essay
Abstract A variety of medical devices are used to monitor or treat abdominal and pelvic diseases. They are routinely recognized on abdominal radiographs and computed tomography (CT), and complications associated with their use are not uncommon. The complications associated with the use of the medical devices are migration, malposition and fracture, which can be easily recognized on abdominal radiographs. Additional potential complications include bleeding, obstruction, infection and organ injury, which may be detected on CT. Therefore, awareness of these complications and familiarity with their imaging findings ar...
Source: Japanese Journal of Radiology - February 11, 2015 Category: Radiology Source Type: research

Observation of intrafraction prostate displacement through the course of conventionally fractionated radiotherapy for prostate cancer
Conclusions Daily maximal IFPD changed day by day. Although maximal IFPD was more than 10 mm, IFPD of ≥3 mm was observed in a comparatively small proportion of treatment time. Through the course of conventionally fractionated radiotherapy, fractions with IFPD of ≥5 mm were infrequent. (Source: Japanese Journal of Radiology)
Source: Japanese Journal of Radiology - February 8, 2015 Category: Radiology Source Type: research

Bone marrow magnetic resonance imaging of the clivus in pediatric leukemia patients and normal controls
Abstract Purpose An MRI-based pre-test to determine the probability of pediatric leukemia prior to bone marrow aspiration would be useful to prevent unnecessary exposure to this invasive test. We aimed to evaluate the clivus-to-pons signal intensity ratio (CPR) and visual scoring (VS) on T1-weighted images (T1WI) and diffusion-weighted images (DWI) to distinguish pediatric leukemia patients from normal controls. Materials and methods We retrospectively reviewed 1.5-T brain MR images of 13 consecutive leukemia patients (3 girls, 10 boys; mean age, 8.23&nb...
Source: Japanese Journal of Radiology - February 5, 2015 Category: Radiology Source Type: research

Anomalous origin of the right pulmonary artery from the ascending aorta associated with patent ductus arteriosus: focusing on computed tomography findings
Abstract Anomalous origin of one pulmonary artery from the ascending aorta (AOPA) is a rare congenital malformation. Fewer than 150 cases have been reported to date in the world, with 95 % of these documented during the first year of the patient’s life. We encountered a rare case of AOPA associated with patent ductus arteriosus in a 41-year-old female, who had reached the most advanced age of any known, previously untreated AOPA patient. We herein present our findings for this patient on plain chest radiography, computed tomography, and perfusion scan. (Source: Japanese Journal of Radiology)
Source: Japanese Journal of Radiology - January 29, 2015 Category: Radiology Source Type: research

Segmental distributions of calcifications and non-assessable lesions on coronary computed tomographic angiography: evaluation in symptomatic patients
Conclusion There were specific features of the distribution of coronary arterial calcifications. It is important to be familiar with these features when deciding whether or not to perform subtraction CCTA. (Source: Japanese Journal of Radiology)
Source: Japanese Journal of Radiology - January 29, 2015 Category: Radiology Source Type: research

Optic chiasmal edema observed on T2-weighted MR images: a reversible finding in obstructive hydrocephalus
Abstract Purpose To evaluate the clinical significance of optic chiasmal edema (OCE) observed in hydrocephalus. Materials and methods Twenty patients with obstructive hydrocephalus and eight patients with communicating hydrocephalus were recruited. We classified both groups into OCE-positive and negative subgroups on three-dimensional T2-weighted images. In the obstructive hydrocephalus group, the pre- and postoperative periventricular hyperintensity (PVH) grade, Evans index, and third ventricle diameter were compared between the subgroups. The visual di...
Source: Japanese Journal of Radiology - January 29, 2015 Category: Radiology Source Type: research

Clinical study of the application of SPECT, CT, and SPECT/CT for diagnosing rib diseases
Abstract Objective To evaluate the practical application of SPECT, CT, and SPECT/CT to the diagnosis of rib diseases, and to compare their accuracies in differentiating benign and malignant rib diseases. Materials and methods SPECT, CT, and SPECT/CT were applied to 237 patients. 190 cases in total, with 305 focal lesions, agreed to clinical follow-up. Statistically significant differences (p 
Source: Japanese Journal of Radiology - January 29, 2015 Category: Radiology Source Type: research

Type IA endoleak embolization after TEVAR via direct transthoracic puncture
We report the case of a 74-year-old man who developed type IA endoleak after endovascular thoracic aortic repair. The patient was admitted with expansion of the aneurysm after TEVAR, for additional therapy. Fluoroscopy and cone-beam computed tomography-guided direct transthoracic sac puncture and complete embolization of the endoleak channels with metal coils and glue were performed, and resulted in complete exclusion of the endoleak. One month after the coil embolization, the type IA endoleak was completely excluded, and the thoracic aneurysm had decreased in size. (Source: Japanese Journal of Radiology)
Source: Japanese Journal of Radiology - January 28, 2015 Category: Radiology Source Type: research

Congenital pericardial defect: a case of right pericardial partial absence with normal partial pleura
We report a rare case of a right partial CPD involving the right atrial appendage, suspected by computed tomography and cine magnetic resonance imaging, and confirmed by thoracoscopy, which also demonstrated a normal parietal pleura. (Source: Japanese Journal of Radiology)
Source: Japanese Journal of Radiology - January 8, 2015 Category: Radiology Source Type: research

Diagnostic performance of heavily T2-weighted techniques in obstructive hydrocephalus: comparison study of two different 3D heavily T2-weighted and conventional T2-weighted sequences
Conclusion 3D heavily T2W sequences are necessary tools for assessment of CSF pathways in patients with intraventricular obstructive hydrocephalus. 3D-SPACE sequences allowed heavy T2W, which is necessary for CSF flow imaging and provided significantly fewer image artifacts and improved CNR in comparison with 3D-CISS sequences. (Source: Japanese Journal of Radiology)
Source: Japanese Journal of Radiology - January 7, 2015 Category: Radiology Source Type: research

Diffusion-weighted MRI in a case of nonsuppressing rebound thymic hyperplasia on chemical-shift MRI
Abstract Rebound thymic hyperplasia (RTH) generally retains the quadrilateral or triangular shape typical of the normal thymus. Nevertheless, RTH may rarely appear as a focal mass, a condition that mimics tumors if reveals soft tissue attenuation at computed tomography (CT). In such cases, chemical-shift magnetic resonance imaging (MRI) can demonstrate microscopic fat within tissue, that would be indistinct at CT, by showing signal suppression on opposed-phase images relative to in-phase images, although two cases of nonsuppressing thymus have been described in early adulthood, both of them with minimally fat amou...
Source: Japanese Journal of Radiology - January 4, 2015 Category: Radiology Source Type: research

Detection of pure ground-glass nodules in the lung by low-dose multi-detector computed tomography, with use of an iterative reconstruction method: a comparison with conventional image reconstruction by the filtered back-projection method
Conclusions The results of this experimental chest phantom study showed that use of the IR method improved the detectability of simulated pure GGNs. (Source: Japanese Journal of Radiology)
Source: Japanese Journal of Radiology - January 1, 2015 Category: Radiology Source Type: research

Breast cancer metastatic to the kidney with renal vein involvement
We report a case of breast cancer metastatic to the kidney with extension into the renal vein. A 40-year-old woman had undergone left mastectomy for breast cancer at the age of 38. A gastric tumor, which was later proved to be metastasis from breast cancer, was detected by endoscopy. Computed tomography performed for further examination of the gastric tumor revealed a large left renal tumor with extension into the left renal vein. It mimicked a primary renal tumor. Percutaneous biopsy of the renal tumor confirmed metastasis from breast cancer. Surgical intervention of the stomach and the kidney was avoided, and she was tre...
Source: Japanese Journal of Radiology - December 28, 2014 Category: Radiology Source Type: research

A comparison of axial versus coronal image viewing in computer-aided detection of lung nodules on CT
Abstract Purpose To compare primarily viewing axial images (Axial mode) versus coronal reconstruction images (Coronal mode) in computer-aided detection (CAD) of lung nodules on multidetector computed tomography (CT) in terms of detection performance and reading time. Materials and methods Sixty CT data sets from two institutions were collected prospectively. Ten observers (6 radiologists, 4 pulmonologists) with varying degrees of experience interpreted the data sets using CAD as a second reader (performing nodule detection first without then with aid). T...
Source: Japanese Journal of Radiology - December 23, 2014 Category: Radiology Source Type: research

An unusual liver mass: primary malignant mesothelioma of the liver
We present radiologic findings of two cases which are pathologically proven as primary malignant mesothelioma of the liver. Malignant mesothelioma of the liver may be included in a differential diagnosis list if there is a heterogeneous, hemorrhagic and necrotic lesion in the liver, with peripheral serpiginous vascular structures and increasing septal enhancement in post-contrast images. (Source: Japanese Journal of Radiology)
Source: Japanese Journal of Radiology - December 18, 2014 Category: Radiology Source Type: research

HRCT findings of small cell lung cancer measuring 30 mm or less located in the peripheral lung
Conclusion A non-round shape and thickening of the BVB were common, while marginal GGO and air bronchogram were less common in small-sized, peripherally located SCLC. Furthermore, the vermiform/branching shape and thickening of the BVB suggested relatively advanced disease. (Source: Japanese Journal of Radiology)
Source: Japanese Journal of Radiology - December 15, 2014 Category: Radiology Source Type: research

Influence of the motion correction algorithm on the quality and interpretability of images of single-source 64-detector coronary CT angiography among patients grouped by heart rate
Conclusion MCA reconstruction preserved image quality and interpretability of CCTA with HR ≤79 bpm. (Source: Japanese Journal of Radiology)
Source: Japanese Journal of Radiology - December 11, 2014 Category: Radiology Source Type: research

Computed tomography findings of tracheobronchial system diseases: a pictorial essay
Abstract The diseases affecting the trachea and main bronchi can be categorized into congenital or acquired abnormalities and also into focal or diffuse diseases. Major congenital bronchial abnormalities cover accessory cardiac bronchus and tracheal bronchus. Tracheobronchial strictures, such as post-intubation and post-infectious stenosis and tracheobronchial neoplasms are regarded as focal diseases, whereas tracheobronchomegaly, relapsing polychondritis, tracheobronchopathia osteochondroplastica, amyloidosis, granulomatosis with polyangiitis, tracheobronchomalacia, saber-sheath trachea and tracheobronchitis asso...
Source: Japanese Journal of Radiology - December 11, 2014 Category: Radiology Source Type: research

Prediction of pancreatic anastomotic failure after pancreatic head resection using preoperative diffusion-weighted MR imaging
Conclusion Measuring the preoperative non-tumorous pancreatic ADC may be useful for the prediction of a postoperative PAF. (Source: Japanese Journal of Radiology)
Source: Japanese Journal of Radiology - December 11, 2014 Category: Radiology Source Type: research

Sonoelastography findings for idiopathic granulomatous mastitis
Conclusions The features of idiopathic granulomatous mastitis suggest it is benign in nature. (Source: Japanese Journal of Radiology)
Source: Japanese Journal of Radiology - December 3, 2014 Category: Radiology Source Type: research

Percutaneous jejunostomy through the liver parenchyma for palliation of afferent loop syndrome
Abstract In the treatment of afferent loop syndrome, jejunostomy or Roux-en-Y gastrojejunostomy have tended to represent the preferred procedures. In patients who are not good candidates for surgery, palliative treatment—i.e., percutaneous transhepatic biliary drainage or percutaneous direct transperitoneal jejunostomy techniques—have been applied. Transhepatic biliary drainage confers a risk of ascending cholangitis. Direct percutaneous transperitoneal drainage may be impractical when overlying bowel loops prevent access to deeply located afferent loops. In the present case, percutaneous jejunostomy t...
Source: Japanese Journal of Radiology - November 30, 2014 Category: Radiology Source Type: research

A retrospective statistical analysis of the late complications associated with central venous port placements
Conclusion Steroid administration and TPN were associated with increased rates of infection. In addition, patients receiving chemotherapy or whose CV ports are left in place for a long time should be carefully observed to decrease these complications. (Source: Japanese Journal of Radiology)
Source: Japanese Journal of Radiology - November 29, 2014 Category: Radiology Source Type: research

Variations in the popliteal artery branching in 342 patients studied with peripheral CT angiography using 64-MDCT
Conclusion The presence of variations in the anatomy of the popliteal artery could be of radiological and surgical importance in orthopedic interventions and various vascular surgery procedures. Peripheral CTA using MDCT is a suitable imaging modality for noninvasive evaluation of lower extremity arteries, and it may become the preferred method for evaluating variations in popliteal artery branching. (Source: Japanese Journal of Radiology)
Source: Japanese Journal of Radiology - November 26, 2014 Category: Radiology Source Type: research

Model-based iterative reconstruction for detection of subtle hypoattenuation in early cerebral infarction: a phantom study
Conclusion For the small, low-contrast lesions in the phantom model used in this study, no significant difference between detectability was observed for MBIR and FBP. (Source: Japanese Journal of Radiology)
Source: Japanese Journal of Radiology - November 26, 2014 Category: Radiology Source Type: research

Spondylolytic spondylolisthesis: various imaging features and natural courses
Abstract The purpose of this paper is to review typical and atypical imaging features of spondylolytic spondyolisthesis and natural courses. Imaging features of the typical pars defect in early phase include bone marrow edema of the isthmus on MR imaging with progression of bone defect on plain radiography or CT. There are various defect types (pedicular cleft, retroisthmic cleft) and locations (upper lumbar spine and unilateral lesions). Natural courses also vary, with different patterns of progression and stabilization. Clinical correlation of the imaging and clinical features is often difficult. (Source: Japane...
Source: Japanese Journal of Radiology - November 22, 2014 Category: Radiology Source Type: research

Esophageal stenting after penetrating complete esophageal obstruction using a trocar stylet via a gastrostomy route: a case report
Abstract Complete esophageal obstruction developed after radiation and endoscopic submucosal dissection therapy for a cervical esophageal cancer in a 77-year-old woman. After failure to recanalize the esophageal obstruction by endoscopic and catheterization techniques, the esophageal obstruction was penetrated using a trocar stylet needle via a gastrostomy route. A covered stent was placed across the esophageal obstruction, letting her take water and liquid food until she died 2 months later. There was no complication related to the procedures except transient chest discomfort and pain that subsided with symp...
Source: Japanese Journal of Radiology - November 20, 2014 Category: Radiology Source Type: research

Effectiveness of CT assists for intraarterial chemotherapy: therapeutic outcome of chemoradiation for advanced head and neck cancer extending across the anatomical midline
Conclusions Intraarterial chemotherapy using angiography-assisted CT during chemoradiation therapy can achieve comparable therapeutic outcomes for cancer with and without EAM. (Source: Japanese Journal of Radiology)
Source: Japanese Journal of Radiology - November 8, 2014 Category: Radiology Source Type: research

Application of a deformable registration technique to investigate breath-hold reproducibility
Conclusion This method we have developed may have great potential for the objective verification of breath-hold reproducibility in a less invasive manner. This method assumed that the voluntary breath-hold status was reproducible enough at a clinically satisfactory level. (Source: Japanese Journal of Radiology)
Source: Japanese Journal of Radiology - November 8, 2014 Category: Radiology Source Type: research

Ultrasonographic findings of Kimura’s disease presenting in the upper extremities
Conclusions In this study, Kimura’s disease arising in the upper extremities showed a partially defined hypoechoic subcutaneous mass with internal hyperechoic bands and moderate-to-severe vascularities, increased echogenicity of the surrounding subcutaneous fat and adjacent lymphadenopathy on US. Thus, when these US features are observed in the typical epitrochlear region of an Asian individual, especially if accompanied by peripheral eosinophilia, Kimura’s disease should be considered as a possible diagnosis. (Source: Japanese Journal of Radiology)
Source: Japanese Journal of Radiology - November 6, 2014 Category: Radiology Source Type: research

Needle track tumor seeding after radiofrequency ablation of a thyroid tumor
Abstract A 19-year-old female underwent two radiofrequency ablation procedures for a thyroid tumor that was proven to be nodular hyperplasia versus a follicular neoplasm by fine-needle aspiration. Two years after the last follow-up, the thyroid mass had grown and a newly developed mass was detected in the platysma muscle. After surgery, the thyroid mass was revealed to be a solid papillary thyroid carcinoma, and the subplatysmal mass was tumor seeding. (Source: Japanese Journal of Radiology)
Source: Japanese Journal of Radiology - November 1, 2014 Category: Radiology Source Type: research

A case of autoimmune pulmonary alveolar proteinosis appearing as a localized ground-glass opacity
Abstract Pulmonary alveolar proteinosis (PAP) is a rare diffuse lung disease caused by abnormal intra-alveolar surfactant accumulation; it commonly appears as a “crazy-paving” pattern on high-resolution computed tomography. Here, we report a rare case of autoimmune PAP appearing as localized ground-glass opacity. An 82-year-old woman underwent chest computed tomography (CT) at another facility for cough, and a 2-cm localized ground-glass opacity was detected at the bottom of the right upper lung lobe. When she presented for follow-up at our hospital 6 months later, she was asymptomatic. The CT ex...
Source: Japanese Journal of Radiology - November 1, 2014 Category: Radiology Source Type: research

Clinical utility of the normalized apparent diffusion coefficient for preoperative evaluation of the aggressiveness of prostate cancer
Conclusions nADC is superior to ADC for estimating the aggressiveness of prostate cancer. It is a noninvasive technique that aids in the selection of appropriate treatments. (Source: Japanese Journal of Radiology)
Source: Japanese Journal of Radiology - October 17, 2014 Category: Radiology Source Type: research

Hepatoid adenocarcinoma of the stomach: dual-time-point 18 F-FDG PET/CT findings
Abstract Hepatoid adenocarcinoma of the stomach (HAS) is a rare distinct variant of gastric carcinoma with earlier metastases and worse prognosis compared to the more common intestinal types. It is often misdiagnosed as hepatocellular carcinoma, especially when primary HAS is insignificantly anatomically abnormal, produces high alpha-fetoprotein and develops early liver metastasis. In this case we show the significance of dual-time-point 18F-fluorodeoxyglucose positron emission tomography (PET)/computed tomography (CT) in accurately diagnosing and staging HAS. (Source: Japanese Journal of Radiology)
Source: Japanese Journal of Radiology - October 7, 2014 Category: Radiology Source Type: research