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Chen Jun - - 2014
Probe bismuth sulfide modified with Pluronic F127 (Bi2S3-PF127), which has high biocompatibility and dispersibility, is synthesized using triblock copolymer Pluronic F127 to modify hydrophobic Bi2S3 nanoparticles that are prepared by a hot injection method. TEM results show that most of the probe has a length of about 14.85 ± 1.70 nm and ...
Faletti Riccardo R Department of Diagnostic Imaging and Radiotherapy, Radiology University of Torino, Azienda Ospedaliero-Universitaria Città della Salute e della Scienza di Torino, Via Genova 3, 10126, Turin, Italy, - - 2014
To evaluate Gd-EOB-DTPA-enhanced magnetic resonance (MR) performance during dynamic (DYN) phases, hepatobiliary (HB) phase and diffusion-weighted imaging (DWI) compared with pathological findings in patients undergoing orthotopic liver transplantation (OLT) for hepatocellular carcinoma (HCC) associated with different conditions, such as stage of chronic liver disease, histological grading, nodule size, and occurrence ...
Choy ManKin M Department of Pediatrics, Department of - - 2014
A significant proportion of temporal lobe epilepsy (TLE), a common, intractable brain disorder, arises in children with febrile status epilepticus (FSE). Preventative therapy development is hampered by our inability to identify early the FSE individuals who will develop TLE. In a naturalistic rat model of FSE, we used high-magnetic-field MRI ...
Dudley Mary H MH Office of the Jackson County Medical Examiner, 660 E 24th St., Kansas City, MO; School of Medicine, University of Missouri Kansas City, 2411 Holmes St., Kansas City, - - 2014
This case study involves the unexplained death of a previously healthy 30-month-old child. Reportedly, she was found unresponsive by her foster father following a 2-hour nap. She was transported to the hospital and died in the emergency room of unknown causes. Blood drawn in the ER showed hemoglobin of 4.3 mg/dL. ...
Mastanduno Michael A MA Thayer School of Engineering, Dartmouth College, 14 Engineering Dr., Hanover, NH 03755. Electronic address: - - 2014
Near-infrared spectroscopy (NIRS) of breast can provide functional information on the vascular and structural compartments of tissues in regions identified during simultaneous magnetic resonance imaging (MRI). NIRS can be acquired during dynamic contrast-enhanced MRI (DCE-MRI) to accomplish image-guided spectroscopy of the enhancing regions, potentially increasing the diagnostic specificity of the ...
Huger S - - 2013
To compare the accuracy of the Block Matching deformable registration (DIR) against rigid image registration (RIR) for head-and-neck multi-modal images CT to cone-beam CT (CBCT) registration. Planning-CT and weekly CBCT of 10 patients were used for this study. Several volumes, including medullary canal (MC), thyroid cartilage (TC), hyoid bone (HB) ...
Anderson Bradley W - - 2013
A 55-year-old man was hospitalized for a neurologic and infectious workup after having hallucinations and productive cough for 2 days. During hospitalization, he experienced dark stools with an acute drop in hemoglobin. Upper endoscopy and colonoscopy were negative for an identifiable source of bleed. Capsule endoscopy was later done and ...
Kim Dongmin - - 2013
We developed an experimental setup for magnetic resonance imaging (MRI) of rat brain slices maintained in a hemoglobin-free medium and showed that the MRI system has a sensitivity to magnetic fields of 10(-11) T. The originally developed non-magnetic sample holder consisted of a microelectrode array for recording neuronal potentials and ...
Friedrich Matthias G - - 2013
Oxygenation-sensitive cardiovascular magnetic resonance (CMR) is a non-contrast technique that allows the non-invasive assessment of myocardial oxygenation. It capitalizes on the fact that deoxygenated hemoglobin in blood can act as an intrinsic contrast agent, changing proton signals in a fashion that can be imaged to reflect the level of blood ...
Allen Brian C - - 2013
This study aimed to determine whether visible bone marrow enhancement (BME) at pelvic magnetic resonance angiography (MRA) correlates with anemia. This is an institutional review board-approved, Health Insurance Portability and Accountability Act-compliant retrospective study. Seventy-five female patients with a hemoglobin (Hb) test within 10 days of an MRA examination of ...
Lee Cheng Hiang - - 2013
An 8-year-old boy presented with first episode of rectal bleeding. Initial hemoglobin was 9 g/dL. A Meckel scan showed a hyperemic focus in the lower pelvis. Colonoscopy identified a juvenile polyp with dysplasia in the rectosigmoid region. It is important to carefully evaluate the dynamic flow images in the Meckel ...
Arun Sasikumar - - 2013
OBJECTIVE: To determine the added value of single-photon emission computed tomography/computed tomography (SPECT/CT) over planar hepatobiliary scintigraphy (HBS) in suspected cases of bile leak. MATERIALS AND METHODS: An analysis of the data of all patients who had undergone HBS for suspected bile leak during the last 3 years was carried ...
Ghieda U - - 2013
Extramedullary hematopoiesis (EMH) can occur in patients with thalassemia intermedia as a physiologic response to insufficient erythropoiesis to meet circulatory demands. Rarely, EMH involve the epidural space causing spinal cord compression. We describe a case of EMH in a 21-year-old man with β-thalassemia intermedia presenting with progressive low back pain, ...
Lee Seung Young - - 2013
Purpose: To identify the relationship between hemoglobin (Hgb) or hematocrit (Hct) level and dural sinus density using unenhanced computed tomography (UECT). Materials and Methods: Patients who were performed UECT and had records of a complete blood count within 24 hours from UECT were included (n=122). We measured the Hounsfield unit ...
Mohammed Wasif W Department of Radiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu Province, - - 2013
Susceptibility-weighted imaging (SWI) is a technique that exploits the susceptibility difference between tissues to provide contrast for different regions of the brain. In essence, it uses the deoxygenated hemoglobin of veins, hemosiderin of hemorrhage, etc. as intrinsic contrast agents, allowing for much better visualization of blood and microvessels even without ...
Leung T K - - 2012
Most applications of gradual pressure-decline compressing stockings (GPDCS) are used in the United States and Western European countries, with over a decade of clinical experiments. Up to know, there is no standard establishment of gradual pressure-decline compressing stockings for Asian patients with venous insufficiency and varicose vein formations. We collected ...
Ebert Mark - - 2012
We report on the conventional and diffusion-weighted (DWI) magnetic resonance imaging (MRI) findings of a partially thrombosed torcular Herophili dural sinus malformation. DWI confirmed the intralesional partial thrombosis/blood clot characterized by restricted diffusion. In addition, focal or global intracerebral complications were excluded by fetal DWI. Our findings suggest that DWI ...
Gokce Sila Mermut - - 2012
The displacement of the hyoid bone (HB) is a critical biomechanical component of the swallowing function. The aim of this study was to evaluate the swallowing-induced vertical and horizontal displacements of the HB in subjects with 2 different magnitudes of skeletal Class III malocclusion, by means of real-time, balanced turbo-field-echo ...
Soyer Philippe - - 2012
OBJECTIVES: To assess the potential of magnetic resonance (MR) imaging in evaluating placental vascularity and predicting placental resorption delay after conservative management of invasive placenta. METHODS: MR examinations of 23 women with conservative management of invasive placenta were reviewed. Twelve women had pelvic embolisation because of postpartum haemorrhage (Group 1) ...
Tall Martin - - 2012
To determine the accuracy and reproducibility of a remote eye-tracking system for studies of observer gaze while displaying volumetric chest computed tomography (CT) images. Four participants performed calibrations using three different gray-scale backgrounds (black, gray, and white). Each participant then observed a three-dimensional 10-point test pattern embedded in five Digital ...
Chen C-H - - 2012
A 65-year-old woman presented with mild dysphagia, weight loss and intermittent palpitation. Chest radiograph revealed a large opacity in the right lower lung field. Subsequent CT scan showed a large posterior mediastinal lipoma extending from the level of the aortic arch to the thoracoabdominal junction. After thoracoscopic resection, the patient's ...
Amacker Nadja A - - 2012
OBJECTIVE: To investigate the radiation dose and image quality of the high-pitch dual source computer tomography (DSCT) for routine chest and abdominal scans. METHODS: 130 consecutive patients (62 female, 68 male, median age 55 years) were included. All patients underwent 128-slice high-pitch DSCT (chest n=99; abdomen n=84) at a pitch ...
Bipat S - - 2012
Dutch guidelines made the following recommendations for staging colorectal cancer (CRC). For liver metastases, computed tomography (CT) or magnetic resonance imaging (MRI) could be used. For lung metastases, imaging could be limited to chest X-ray. The primary aim of this survey was to summarise the use of imaging modalities and ...
Martinez Felipe - - 2012
Wegener granulomatosis is an uncommon necrotizing vasculitis that classically manifests as a clinical triad consisting of upper and lower airway involvement and glomerulonephritis. Other less frequently involved organ systems include the central and peripheral nervous system and large joints. The diagnosis is based on a combination of clinical and laboratory ...
Gollub Marc J - - 2012
To examine the accuracy of the cardiothoracic ratio (CTR) at routine computed tomography (CT) of the chest to diagnose cardiomegaly by using echocardiography (ECHO) as a criterion standard, and secondarily, to search for CT cardiac measurements correlating with left ventricular hypertrophy (LVH) at ECHO. We searched 2 databases: cancer patients ...
Gohil Harshkumar - - 2012
Bronchial atresia is a rare but important congenital pathology that could be readily mistaken for a pulmonary mass. We report the PET/CT characteristics of bronchial atresia in a 63-year-old woman with no prior history of cancer who was referred for evaluation of a solitary pulmonary nodule observed on a prior ...
Wu Xingwang - - 2012
Purpose: The purpose of this study was to investigate the value of spectral CT monoenergetic imaging for detecting hemoglobin levels.Material and methods: Sixty-five hospitalized patients received chest non-contrast CT scan in gemstone spectral imaging (GSI) mode on a GE Discovery CT750 HD. This study was approved by the hospital ethics ...
Bustinza-Linares Ernesto - - 2012
A 28-year-old female with history of chest wall extraskeletal myxoid chondrosarcoma (EMC) presented to the emergency department complaining of two weeks of lightheadedness and fatigue. Laboratories showed hemoglobin of 7.6 g/dL and a positive hemoccult test. Upper and lower endoscopies were unremarkable, and the patient was discharged after blood transfusion. The ...
Zafrir Nili - - 2011
BACKGROUND: To examine the yield of an ultra-low-dose computed tomography (CT) transmission module for attenuation-correction (AC) on a dedicated cardiac camera in evaluation of SPECT-myocardial perfusion imaging (MPI) in the diagnosis of CAD and for additional chest abnormalities. METHODS: The study group included 150 patients with known or suspected CAD ...
Ruder Thomas D - - 2011
  Computed tomography (CT) and magnetic resonance (MR) imaging have become important elements of forensic radiology. Whereas the feasibility and potential of CT angiography have long been explored, postmortem MR angiography (PMMRA) has so far been neglected. We tested the feasibility of PMMRA on four adult human cadavers. Technical quality ...
Chen Xujun - - 2011
Cardiac haemangioma is an extremely rare, benign vascular tumour. A 42-year-old female patient who was previously very active presented with complaints of exertional chest pain as well as lower extremity oedema. Computed tomography and magnetic resonance imaging showed a large mass in the anterior mediastinum originating from the right atrioventricular ...
Woodward Cathy S - - 2011
BACKGROUND: It is routine to obtain a chest radiograph (CXR) after removal of a chest tube (CT) to assess for pneumothorax. Retrospective studies have shown that clinical signs were present in most children with pneumothorax and were an indication for a CXR. OBJECTIVE: Our objective was to determine if clinical ...
Sanders Don B - - 2012
Chest CT scans detect structural abnormalities in children with cystic fibrosis (CF), even when pulmonary function tests (PFTs) are normal. The use of chest CT is limited in clinical practice, because of concerns over expense, increased resource utilization, and radiation exposure. Quantitative chest radiography scores are useful in detecting mild ...
McQueen A S - - 2011
AIM: To clarify the chest computed tomography (CT) findings in patients with a new diagnosis of colorectal adenocarcinoma. MATERIALS AND METHODS: Patients diagnosed with colorectal cancer (CRC) over a 3-year period were retrospectively studied. All CT examinations were performed within a single NHS Trust using the same CT system and ...
Cavel Oren - - 2011
OBJECTIVES: Rigid bronchoscopy (RB) is the principal method used for the extraction of a tracheo-bronchial foreign body (FB), but its use as a diagnostic tool implies a certain rate of negative exams, exposing the child to the risk of procedure and anesthesia-related complications. Technological progress has improved the accuracy and ...
Kinane T Bernard - - 2011
A 9-month-old boy had had recurrent episodes of tachypnea and respiratory distress since he was 5.5 months of age, with expiratory wheezing and fine crackles on auscultation, hyperinflation on chest radiography, and bilateral ground-glass opacities on CT.
Paul Narinder S - - 2011
The purpose of this article is to determine the influence of chest wall composition on image quality in cardiac CT. A retrospective study of 100 consecutive patients referred for CT coronary artery calcium assessment was performed. Image noise (Hounsfield units) was measured by prescribing a region of interest in the ...
Gu Taoying - - 2011
Primary pulmonary osteosarcoma is a rare malignancy with a very poor prognosis. A 58-year-old man with right chest pain had chest radiography, thoracic computed tomography (CT), positron emission tomography/CT, Tc-99m methylene diphosphonate bone scintigraphy, and single photon emission/CT. CT-guided percutaneous fine-needle aspiration biopsy demonstrated histologic features of osteosarcoma. After 3 ...
Ratnayaka Kanishka - - 2011
The aim of this study was to close ventricular septal defects (VSDs) directly through the chest wall using magnetic resonance imaging (MRI) guidance, without cardiopulmonary bypass, sternotomy, or radiation exposure. Surgical, percutaneous, and hybrid management of VSD each have limitations and known morbidity. Percutaneous muscular VSDs were created in 10 ...
Dewhurst Catherine - - 2011
PURPOSE: To document the course of the posterior intercostal artery (PIA) within the intercostal space (IS) in vivo using computed tomography angiography (CTA). MATERIALS AND METHODS: A review of 428 IS from CTA of the chest was performed. Using multiplanar reconstruction (MPR) algorithms, the course of the PIA within the ...
Kimura Muneyoshi M Department of Infectious Diseases, Toranomon Hospital, Tokyo, - - 2012
This is the first reported case of a patient who developed fungal pneumonia caused by Cunninghamella bertholletiae (= C. elegans) following cord blood transplantation and who showed a reversed halo sign on a chest computed tomography scan (CT). In addition, the pathological findings related to the reversed halo sign are ...
Tsunezuka Yoshio - - 2012
There are few reported cases of intrathoracic Ewing's sarcoma, a very rare malignant neoplasm. We report a surgical case of extraskeletal Ewing's sarcoma that had been followed-up as a stable sized tumour for many years, which then grew rapidly within a year. A 27-year old female patient with a rapidly ...
Lee Susanna I - - 2011
Purpose:To measure the proportion of high-cost imaging generated by a radiologist's recommendation and to identify the imaging findings resulting in follow-up.Materials and Methods:This retrospective HIPAA-compliant study had institutional review board approval, with waiver of informed consent. A recommended examination was defined as one performed within a single episode of care ...
Dumaine Chance S - - 2011
PURPOSE: Follow-up study to observe if provincial mean effective radiation dose for head, chest, and abdomen-pelvis (AP) computed tomographies (CTs) remained stable or changed since the initial 2006 survey. METHODS: Data were collected in July 2008 from Saskatchewan's 13 diagnostic CT scanners of 3358 CT examinations. These data included the ...
Jung Chan Hee - - 2011
Endoscopic thyroidectomy is becoming a popular method for the treatment of low-risk micropapillary thyroid cancers. Here, we report 2 cases showing increased uptake on postoperative follow-up FDG PET/CT imaging in the chest wall after endoscopic thyroidectomy via axillo-breast approach without gas insufflations. An ultrasound-guided gun biopsy was performed to rule ...
De Boo Diederick W - - 2011
The purpose of this article is to evaluate the impact of gray-scale reversal on the detection of small pulmonary nodules in two-view chest radiography. One hundred twenty-eight patients (mean age, 62 years) who underwent CT and chest radiography within 6 weeks were retrospectively selected for this study. Seventy-three percent of ...
Dimarakis Ioannis - - 2011
A 67-year-old man presented with right-sided chest and shoulder pain. Chest roentgenogram demonstrated a right upper zone shadow. Computed tomography (CT) revealed a pleural mass and adjacent chest wall disease. Image-guided percutaneous biopsy suggested malignant mesothelioma. We describe the use of 18-fluorodeoxyglucose-positron emission tomography (PET-CT) in the diagnosis and management ...
Choi Se Hoon - - 2011
The role of positron emission tomography-computed tomography (PET-CT) for the staging of non-small cell lung cancer (NSCLC) has been well documented, whereas its role for postoperative surveillance after the curative resection of this cancer has not. We prospectively implemented PET-CT in our surveillance protocol for recurrence of NSCLC and investigated ...
Peng Gang - - 2011
The authors measured organ radiation doses during multi-slice computed tomography (MSCT) chest scans using a China Sichuan anthropomorphic phantom (CDP-1C). Chest CT images from live volunteers based on automatic tube current modulation (ATCM) techniques were similar to those obtained using the CDP-1C phantom, indicating that the phantom accurately modelled the ...
Mao Sai-Hu - - 2011
Study Design. A retrospective radiographic study of pre and post-operative anterior chest wall shape in thoracic adolescent idiopathic scoliosis (AIS).Objective. To assess the anterior chest wall deformity and define its relationship with other deformed components in AIS. The surgical influence on the deformed chest wall contour was also evaluated to ...
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