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https://www.readbyqxmd.com/read/28211058/a-feasibility-study-of-a-hybrid-breast-immobilization-system-for-early-breast-cancer-in-proton-beam-therapy
#1
Takeshi Arimura, Takashi Ogino, Takashi Yoshiura, Mitsugi Matsuyama, Naoaki Kondo, Hideki Miyazaki, Akari Sakuragi, Takayuki Ohara, Etsuyo Ogo, Yoshio Hishikawa
PURPOSE: We aimed to develop a new breast-immobilizing system for proton beam therapy (PBT) of early breast cancer (EBC) that would provide the optimum breast shape during the treatment as well as increased fixation reliability by reducing the influence of respiratory movement. METHODS: The breast-immobilizing system (HyBIS; Hybrid Breast-Immobilizing System) consists of a whole body immobilization system (WBIS), position converting device (to change patient position), photo scanning system, breast cup (made using a three-dimensional printer), breast cup fitting apparatus, breast cup holding device (to ensure the breast remains lifted in the supine position), and dedicated stretcher fixed to the WBIS (to carry the patient)...
February 16, 2017: Medical Physics
https://www.readbyqxmd.com/read/28210997/3d-skeletal-uptake-of-18-f-sodium-fluoride-in-pet-ct-images-is-associated-with-overall-survival-in-patients-with-prostate-cancer
#2
Sarah Lindgren Belal, May Sadik, Reza Kaboteh, Nezar Hasani, Olof Enqvist, Linus Svärm, Fredrik Kahl, Jane Simonsen, Mads H Poulsen, Mattias Ohlsson, Poul F Høilund-Carlsen, Lars Edenbrandt, Elin Trägårdh
BACKGROUND: Sodium fluoride (NaF) positron emission tomography combined with computer tomography (PET/CT) has shown to be more sensitive than the whole-body bone scan in the detection of skeletal uptake due to metastases in prostate cancer. We aimed to calculate a 3D index for NaF PET/CT and investigate its correlation to the bone scan index (BSI) and overall survival (OS) in a group of patients with prostate cancer. METHODS: NaF PET/CT and bone scans were studied in 48 patients with prostate cancer...
December 2017: EJNMMI Research
https://www.readbyqxmd.com/read/28209906/first-evaluation-of-pet-based-human-biodistribution-and-dosimetry-of-18-f-faza-a-tracer-for-imaging-tumor-hypoxia
#3
Savi Annarita, Elena Incerti, Federico Fallanca, Valentino Bettinardi, Francesca Rossetti, Cristina Monterisi, Antonia Compierchio, Giampiero Negri, Piero Zannini, Luigi Gianolli, Maria Picchio
Fluorine-18 labelled fluoroazomycinarabinoside ((18)F-FAZA) is a positron emission tomography (PET) biomarker for non-invasive identification of regional tumor hypoxia. Aim of the present Phase I study was to firstly evaluate in non-small cell lung cancer patients the human biodistribution and dosimetry of (18)F-FAZA. Methods: Five patients awaiting surgical resection after histologically proven or radiologically suspected non-small cell lung cancer were prospectively enrolled for the study. The patients underwent a PET/computed tomography (CT) study after the injection of 371±32 MBq of (18)F-FAZA...
February 16, 2017: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
https://www.readbyqxmd.com/read/28209449/maxillofacial-and-concomitant-serious-injuries-an-eight-year-single-center-experience
#4
Fausto Fama, Marco Cicciu, Alessandro Sindoni, Enrico Nastro-Siniscalchi, Roberto Falzea, Gabriele Cervino, Francesca Polito, Francesco De Ponte, Maria Gioffre-Florio
PURPOSE: Maxillofacial injuries are frequently associated with multiple trauma and can determine functional and aesthetic bad outcomes. The severity of maxillofacial injuries may be considerable and can divert clinicians' attention from other concomitant injuries which is less evident but potentially life-threatening. The aim of this study was to find out the concomitant injuries in patients referred to the Emergency Department (ED) of the University Hospital of Messina (North-East Sicily, Italy) for maxillofacial traumas...
January 20, 2017: Chinese Journal of Traumatology, Zhonghua Chuang Shang za Zhi
https://www.readbyqxmd.com/read/28207517/a-rare-case-report-of-very-low-thyroglobulin-and-a-negative-whole-body-scan-in-a-patient-with-a-solid-variant-of-papillary-thyroid-carcinoma-with-distant-metastases
#5
Wei Li, Danyang Sun, Hui Ming, Guizhi Zhang, Jian Tan
RATIONALE: The early detection of recurrent differentiated thyroid carcinoma (DTC) cells in postsurgery DTC patients relies on the sensitivity of measuring both the level of thyroglobulin (Tg) and 131-iodine distribution on a whole-body scan (WBS). Recent studies have defined patients who subsequently have no evidence of disease as those who have a stimulated Tg level <1 ng/mL with no other radiological or clinical evidence of disease. PATIENT CONCERNS: A woman patient with solid variant papillary thyroid carcinoma (SVPTC) had undergone twice thyroidectomy with lymph node dissection and radioactive therapy...
February 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28203361/long-term-iron-polymaltose-infusions-associated-with-hypophosphataemic-osteomalacia-a-report-of-two-cases-and-review-of-the-literature
#6
REVIEW
Ramy H Bishay, Kirtan Ganda, Markus J Seibel
Iron-induced hypophosphataemic osteomalacia remains under-recognized as a potential complication of parenteral iron therapy. We here report two cases of symptomatic hypophosphataemic osteomalacia with multiple insufficiency fractures in the context of chronic gastrointestinal blood loss, necessitating monthly iron polymaltose infusions over prolonged periods of time. Respective blood tests revealed severe hypophosphataemia [0.29 and 0.43; normal range (NR) 0.8-1.5 mmol/l] in the presence of normal serum calcium and 25-hydroxy vitamin D levels...
January 2017: Therapeutic Advances in Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28183990/human-dosimetry-of-the-nmda-receptor-ligand-11-c-gmom
#7
Jasper van der Aart, Thalia F van der Doef, Paul Horstman, Marc C Huisman, Robert C Schuit, Arthur van Lingen, Albert D Windhorst, Bart N M van Berckel, Adriaan A Lammertsma
The methylguanadine derivative [(11)C]GMOM has been used successfully to quantify N-methyl-D-aspartate (NMDA) receptor binding in humans. The purpose of the present study was to estimate the [(11)C]GMOM radiation dose in healthy humans. Methods: Following [(11)C]GMOM injection, three female and two male subjects underwent 10 consecutive whole body PET scans in approximately 77 minutes. 7 source organs were defined manually, scaled to a gender specific reference, and residence times were calculated for input into OLINDA/EXM software...
February 9, 2017: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
https://www.readbyqxmd.com/read/28179338/cancer-death-risk-related-to-radiation-exposure-from-computed-tomography-scanning-among-testicular-cancer-patients
#8
Eeva Salminen, Hannele Niiniviita, Hannu Järvinen, Sirpa Heinävaara
BACKGROUND: A study of the computed tomography (CT) imaging related effective doses and radiation-related cancer death risk. PATIENTS AND METHODS: Estimate effective doses were computed from CT scans of testicular cancer patients treated and followed-up in Turku University Hospital, South Western Finland. Association between effective doses from follow-up CT scans and radiation-induced cancer death was examined using United Nations Scientific Committee on the Effects of Atomic Radiation (UNSCEAR) 2008 formula...
2017: Anticancer Research
https://www.readbyqxmd.com/read/28168589/impact-of-pet-acquisition-durations-on-image-quality-and-lesion-detectability-in-whole-body-68-ga-psma-pet-mri
#9
Benjamin Noto, Florian Büther, Katharina Auf der Springe, Nemanja Avramovic, Walter Heindel, Michael Schäfers, Thomas Allkemper, Lars Stegger
BACKGROUND: While (68)Ga-PSMA PET-MRI might be superior to PET-CT with regard to soft tissue assessment in prostate cancer evaluation, it is also known to potentially introduce additional PET image artefacts. Therefore, the impact of PET acquisition duration and attenuation data on artefact occurrence, lesion detectability, and quantification was investigated. To this end, whole-body PET list mode data from 12 patients with prostate cancer were acquired 1 h after injection of 2 MBq/kg [(68)Ga]HBED-CC-PSMA on a hybrid PET-MRI system...
December 2017: EJNMMI Research
https://www.readbyqxmd.com/read/28166147/acrometastasis-of-neuroblastoma-to-the-great-toe-revealed-by-mibg-scan
#10
Kun Zheng, Hongming Zhuang
A 3-year-old boy with history of neuroblastoma underwent I-MIBG scan. The whole-body images showed relatively normal tracer distribution except for mild activity in the right foot, which was located in the first metatarsal on SPECT/CT images. The subsequent MRI scan of the right foot showed infiltration of the metatarsal of the right first toe. The findings were consistent with solitary acrometastasis of neuroblastoma to the great toe.
February 3, 2017: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/28153482/climbing-upstream-multi-scale-structural-characterization-and-underwater-adhesion-of-the-pulin-river-loach-sinogastromyzon-puliensis
#11
Yung-Chieh Chuang, Haw-Kai Chang, Guan-Lin Liu, Po-Yu Chen
Hillstream fishes live in the current with high flow velocity and strong water impact. To survive in such environments, they evolved various adhesive apparatus and attachment mechanisms. In this study, we investigated the Pulin river loach (Sinogatromyzon puliensis) known for its ability to climb vertically against rapid torrent. The whole body forms a suction system, consisting of lips, overlapped pectoral and fused pelvic fins. The hierarchical structure of lips and fins was characterized by Scanning Electron Microscopy...
January 23, 2017: Journal of the Mechanical Behavior of Biomedical Materials
https://www.readbyqxmd.com/read/28144908/the-association-between-liver-and-tumor-18-f-fdg-uptake-in-patients-with-diffuse-large-b-cell-lymphoma-during-chemotherapy
#12
Xingchen Wu, Abhisek Bhattarai, Pasi Korkola, Hannu Pertovaara, Hannu Eskola, Pirkko-Liisa Kellokumpu-Lehtinen
PURPOSE: The aim of this study was to explore the association between liver, mediastinum and tumor 2-deoxy-2-[(18)F]fluoro-D-glucose ([(18)F]FDG) uptake during chemotherapy in diffuse large B cell lymphoma (DLBCL). PROCEDURES: Nineteen patients with proven DLBCL underwent positron emission tomography (PET)/X-ray computed tomography scan at baseline, 1 week and 2 cycles after rituximab, cyclophosphamide, doxorubicin, vincristine, and prednisolone (R-CHOP) therapy, and again after chemotherapy completion...
January 31, 2017: Molecular Imaging and Biology: MIB: the Official Publication of the Academy of Molecular Imaging
https://www.readbyqxmd.com/read/28144846/virtoscan-a-mobile-low-cost-photogrammetry-setup-for-fast-post-mortem-3d-full-body-documentations-in-x-ray-computed-tomography-and-autopsy-suites
#13
Sören Kottner, Lars C Ebert, Garyfalia Ampanozi, Marcel Braun, Michael J Thali, Dominic Gascho
Injuries such as bite marks or boot prints can leave distinct patterns on the body's surface and can be used for 3D reconstructions. Although various systems for 3D surface imaging have been introduced in the forensic field, most techniques are both cost-intensive and time-consuming. In this article, we present the VirtoScan, a mobile, multi-camera rig based on close-range photogrammetry. The system can be integrated into automated PMCT scanning procedures or used manually together with lifting carts, autopsy tables and examination couch...
March 2017: Forensic Science, Medicine, and Pathology
https://www.readbyqxmd.com/read/28142178/impact-of-abdominal-follow-up-sonography-in-trauma-patients-without-abdominal-parenchymal-organ-lesion-or%C3%A2-free-intraabdominal-fluid-in-whole-body-computed-tomography
#14
Emmanuel Schneck, Christian Koch, Mara Borgards, Martin Reichert, Andreas Hecker, Christian Heiß, Winfried Padberg, Enrique Alejandre-Lafont, Rainer Röhrig, Gabriele Anja Krombach, Markus Weigand, Michael Bernhard, Fritz Christian Roller
Purpose Patients suffering from severe blunt abdominal trauma are challenging because of their need for accurate diagnostic imaging and fast therapeutic action. Whole-body computed tomography (WBCT) is highly sensitive and represents the gold standard in the trauma room diagnostic setting. The aim of our study was to investigate the impact and therapy relevance of abdominal follow-up sonography (AFS) as part of the tertiary trauma survey (TTS) in patients without abdominal parenchymal organ lesions or free abdominal fluid in initial WBCT...
February 2017: RöFo: Fortschritte Auf Dem Gebiete der Röntgenstrahlen und der Nuklearmedizin
https://www.readbyqxmd.com/read/28135863/evaluation-of-tc-99m-3prgd2-integrin-receptor-imaging-in-the-differential-diagnosis-of-breast-lesions-and-comparison-with-mammography
#15
Guibing Chen, Zhong Ouyang, Fan Wang, Hua Wu, Bing Jia, Mahendra D Chordia
PURPOSE: The aims of this study were to evaluate and compare efficacies of Tc-99m-3PRGD2 integrin receptor imaging under variety of conditions for the diagnosis of breast lesions, in addition to comparison with mammography. MATERIALS AND METHODS: Seventy-two female patients with established breast lesions were recruited. All patients were examined by Tc-99m-3PRGD2 integrin receptor imaging and mammography. Whole-body scan and SPECT/CT were acquired at dual time points of 2 and 4 h after injection using standard protocol...
January 31, 2017: Cancer Investigation
https://www.readbyqxmd.com/read/28133747/on-the-potential-for-rf-heating-in-mri-to-affect-metabolic-rates-and-18-fdg-signal-in-pet-mr-simulations-of-long-duration-maximum-normal-mode-heating
#16
Giuseppe Carluccio, Yu-Shin Ding, Jean Logan, Christopher M Collins
PURPOSE: To examine the possibility that MR-induced RF power deposition (SAR) and the resulting effects on temperature-dependent metabolic rates or perfusion rates might affect observed 18FDG signal in PET/MR. METHODS: Using numerical simulations of the SAR, consequent temperature increase, effect on rates of metabolism or perfusion, and [18FDG] throughout the body, we simulated the potential effect of maximum-allowable whole-body SAR for the entire duration of an hour-long PET/MR scan on observed PET signal for two different 18FDG injection times: one hour before onset of imaging and concurrent with the beginning of imaging...
December 9, 2016: Medical Physics
https://www.readbyqxmd.com/read/28133071/-primary-malignant-melanoma-of-the-gallbladder
#17
Daisuke Ujiie, Kotaro Miyamoto, Hisashi Onozawa, Nobuhiro Hoshi, Koichi Nakayama, Kojiro Urazumi, Seiichi Takenoshita, Takashi Kusakabe
Primary malignant melanoma of the gallbladder is a rare disease, and 37 cases have been reported in the literature.The current patient was a 78-year-old man who was admitted with a pelvic tumor and left leg edema due to compression of the external iliac vein by the pelvic tumor.The edema improved following resection of the tumor, which was diagnosed at pathology as a malignant melanoma.After surgery, the patient became anorexic and complained of discomfort in the upper right abdomen.A whole body FDG-PET scan demonstrated significant uptake in the gallbladder and in the lymph nodes of the lower abdomen...
November 2016: Gan to Kagaku Ryoho. Cancer & Chemotherapy
https://www.readbyqxmd.com/read/28130347/non-traumatic-incidental-findings-in-patients-undergoing-whole-body-computed-tomography-at-initial-emergency-admission
#18
Eduard K Kroczek, Gero Wieners, Ingo Steffen, Tobias Lindner, Florian Streitparth, Bernd Hamm, Martin H Maurer
OBJECTIVE: To evaluate the number, localisation and importance of non-traumatic incidental findings (IFs) in patients with suspected or obvious multiple trauma undergoing whole-body CT (WBCT) in a level-1 trauma centre. METHODS: Between January 2009 and December 2013, a total of 2440 patients with trauma undergoing WBCT at admission to a level-1 trauma centre of a university hospital were retrospectively analysed, through imaging IFs unrelated to trauma with the radiological reports...
January 27, 2017: Emergency Medicine Journal: EMJ
https://www.readbyqxmd.com/read/28127347/tegumental-effects-of-methanolic-extract-of-balanites-aegyptiaca-fruits-on-adult-paramphistomum-microbothrium-fischoeder-1901-under-laboratory-conditions
#19
Hatem Shalaby, Soad Nasr, Tarek Farag
BACKGROUND: Weak efficacy of different fasciolicidal compounds used for treatment of paramphistomosis has drawn the attention of many authors to alternative drugs. The purpose of this study was to assess, for the first time, the effect of the methanolic extract of Balanites aegyptiaca fruits (BAE) on adult Paramphistomum microbothrium. METHODS: The effect of BAE on adult P. microbothrium after 24 h incubating the parasites in RPMI 1640 culture medium containing 10, 50, 100 and 200 μg/ml BAE was determined by light and scanning electron microscopic studies...
July 2016: Iranian Journal of Parasitology
https://www.readbyqxmd.com/read/28126884/pet-mr-imaging-in-the-presence-of-metal-implants-completion-of-the-attenuation-map-from-pet-emission-data
#20
Niccolo Fuin, Stefano Pedemonte, Onofrio Antonio Catalano, David Izquierdo-Garcia, Andrea Soricelli, Marco Salvatore, Keith Heberlein, Jacob M Hooker, Koen Van Leemput, Ciprian Catana
: We present a novel technique for accurate whole body attenuation correction (AC) in the presence of metallic endoprosthesis, on integrated non-time-of-flight (non-TOF) PET/MR imaging scanners. The proposed implant PET-based attenuation map completion (IPAC) method performs a joint reconstruction of radioactivity and attenuation from the emission data to determine the position, shape and linear attenuation coefficient (LAC) of metallic implants. METHODS: The initial estimate of the attenuation map is obtained using the MR Dixon-method currently available on the Siemens Biograph mMR scanner...
January 26, 2017: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
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