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Safety Reports Series No.59
Safety Reports Series No.59

... Guidance levels are therefore required in the BSS as an important tool for optimization. They are an indication of “what is achievable with current good practice…”, but are “to be applied with flexibility to allow higher exposures if these are indicated by sound clinical judgement;…”. Concerning the ...
Evaluation and Management of Elbow Tendinopathy
Evaluation and Management of Elbow Tendinopathy

... drugs and localized corticosteroid injections yield moderate symptomatic relief in short term but do not demonstrate benefit on long-term follow-up. Platelet-rich plasma injections may be advantageous in cases of chronic lateral epicondylitis. If 6 to 12 months of nonoperative treatment fails, then ...
Aalborg Universitet Magnetic resonance imaging of joints following
Aalborg Universitet Magnetic resonance imaging of joints following

... systemic and/or intra-articular (IA) treatment potentially can halt the disease progression, and prevent or retard future disability. Magnetic resonance imaging (MRI) is an established and sensitive tool that offers an unparalleled discrimination among articular soft tissues by direct visualization ...
Aalborg Universitet Magnetic resonance imaging of joints following intra-articular treatment and
Aalborg Universitet Magnetic resonance imaging of joints following intra-articular treatment and

... systemic and/or intra-articular (IA) treatment potentially can halt the disease progression, and prevent or retard future disability. Magnetic resonance imaging (MRI) is an established and sensitive tool that offers an unparalleled discrimination among articular soft tissues by direct visualization ...
PET Scan Primer - Cancer Care Ontario
PET Scan Primer - Cancer Care Ontario

... decisions for early stage lung cancer, stage III (locally advanced) lung cancer, women with breast cancer, head and neck cancer, and colorectal cancer that has spread to the liver. The result of the trial in early stage lung cancer was presented at the American Society of Clinical Oncology meeting i ...
MR Imaging of the Normal and Abnormal Clivus
MR Imaging of the Normal and Abnormal Clivus

... sagittal images, we retrospectively reviewed sagittal cervical spine MR images in a control group of 80 adult patients (46 men and 34 women 22-78 years old) in order to establish the normal MR appearance of the clivus on T2-weighted sagittal images. Patients with known or suspected abnormalities inv ...
Thyroid and Parathyroid Ultrasound Examination
Thyroid and Parathyroid Ultrasound Examination

... thyroid gland, parathyroid glands, and adjacent soft tissues. Occasionally, an additional and/or specialized examination with another modality may be necessary. While it is not possible to detect every abnormality, adherence to the following guidelines will maximize the probability of detecting most ...
CAN CER Patient Guide - Cancer Treatment
CAN CER Patient Guide - Cancer Treatment

... in the nation through cancer clinical trials sponsored by the NCI and other leading cancer institutions. Cancer clinical trials are studies that test and evaluate new treatments; such trials are among the last steps of a long, rigorous process through which new methods of diagnosing, treating and pr ...
Detection of Coronary Artery Stenoses by Contrast
Detection of Coronary Artery Stenoses by Contrast

... acquired using a Siemens Volume Zoom CT scanner during intravenous injection of contrast agent (160 mL at 4 mL/s) in 4 parallel slices (1.0 mm collimation) with a gantry rotation time of 500 ms and a table feed of 1.5 mm/rotation. The tube current was 150 mA at 140 kV. Using the algorithm 180°MCI (M ...
3. Profile Details - QIBA Wiki
3. Profile Details - QIBA Wiki

... navigational bronchoscopy of fine needle aspiration. In addition, as there is an inverse relationship between nodule diameter and proportional change in volume, the proportional change in measurement error will therefore also follow an inverse relationship with diameter. In the lower size ranges, an ...
CLINICAL IMPLEMENTATION OF IMAGE
CLINICAL IMPLEMENTATION OF IMAGE

... volume rendering of the medical images, while the other three views show the 2D orthogonal views of the segmentation overlaid on the medical images. On the left menu are the various tools used for segmentation and image processing. ...
New Techniques for the Assessment of Regional Left - DIE
New Techniques for the Assessment of Regional Left - DIE

... lower in patients with restrictive cardiomyopathy compared with normal subjects and patients with constrictive pericarditis. Additionally, abnormal MVG during isovolumic relaxation was observed in patients with restrictive cardiomyopathy (positive MVG during isovolumic relaxation time) compared with ...
Current concepts on magnetic resonance imaging (MRI)
Current concepts on magnetic resonance imaging (MRI)

... within minutes to a few hours after arterial occlusion due to a reduction of the apparent diffusion coefficient (ADC). This ADC reduction occurs primarily in the intracellular space associated with disruption of membrane ionic homeostasis and cytotoxic oedema. In terms of clinical interpretation, an ...
Standardized volumetric 3D-analysis of SPECT/CT imaging in
Standardized volumetric 3D-analysis of SPECT/CT imaging in

... What we propose is to use the anatomic information provided by the CT component to establish, prior to analysis, a clinically relevant neutral region. For example, when analysing intensities relating to knee joint pain, we can define a volume in the middle of the femoral shaft (which is unrelated to ...
(2nd Edition) Evidence-Based Clinical Practice Guidelines Nodules
(2nd Edition) Evidence-Based Clinical Practice Guidelines Nodules

... common miscellaneous causes of benign nodules included nonspecific inflammation and fibrosis, lung abscesses, round pneumonia, round atelectasis, bronchogenic cysts, healed pulmonary infarcts, focal hemorrhage, hemangiomas, and arteriovenous malformations. Because bronchopneumonia is a very uncommon ...
Nigerian Radiation Safety in Diagnostic and Interventional
Nigerian Radiation Safety in Diagnostic and Interventional

... involving their exposure; "medical practitioner" means an individual who : (a) has been accredited through appropriate national procedures as a health professional; (b) fulfils the national requirements on training and experience for prescribing procedures' involving medical exposure; and (c) is a r ...
- KoreaMed Synapse
- KoreaMed Synapse

... Noninvasive imaging modalities, including chest CT and magnetic resonance imaging (MR), are commonly used clinically. In particular, chest CT has been replacing the inconvenient V/Q scanning and the invasiveness of pulmonary angiography in recent years, especially in patients with normal renal funct ...
Rib Fractures - Diagnostic Centers of America
Rib Fractures - Diagnostic Centers of America

... Certain types of rib fractures are associated with an increased incidence of various organ injuries. There is increased likelihood for injury to the adjacent subclavian and innominate vessels with displaced first and second rib fractures, but this injury can usually be suspected on clinical grounds ...
AAPM Imaging Physics Curricula Subcommittee
AAPM Imaging Physics Curricula Subcommittee

... 1. Describe how charged particles interact with matter and the resulting effects these interactions can have on the material. 2. Describe the processes by which x-ray and g-ray photons interact with individual atoms in a material and the characteristics that determine which processes are likely to o ...
M C S O
M C S O

... Keywords ................................................................................................................................ ii Abstract.................................................................................................................................. iii Table of Content ...
Imaging of malignant cervical lymphadenopathy.
Imaging of malignant cervical lymphadenopathy.

... without the need for computer reconstruction, the absence of ionizing radiation, the lack of streak artifact as a result of ®llings and dense cortical bone and superior contrast resolution of the tissue without the need for intravenous contrast medium. MRI is precluded in certain individuals with fe ...
Managing Patient Dose in Multi-Detector Computed Tomography
Managing Patient Dose in Multi-Detector Computed Tomography

... There are a number of new influencing parameters specific to MDCT which systematically increase or decrease patient dose compared to single-detector row CT scanners (SDCT). As in earlier developments in CT, there is potential for dose reduction, but the actual dose reduction depends upon how the sys ...
QA for helical tomotherapy: Report of the AAPM Task Group 148
QA for helical tomotherapy: Report of the AAPM Task Group 148

... resembles that of a helical CT scanner. The beam is generated by a 6 MV linear accelerator that is mounted on a slip ring gantry. The beam passes through a primary collimator and is further collimated into a fan-beam shape by an adjustable jaw. For further collimation, a binary multileaf collimator ...
MR Imaging of Scrotal Tumors and Pseudotumors1
MR Imaging of Scrotal Tumors and Pseudotumors1

... Currently, the imaging method of choice for evaluation of scrotal lesions is ultrasonography (US) because of its high accuracy, excellent depiction of scrotal anatomy, low cost, and wide availability (1–3). In about 4% of cases (3), however, US can be inconclusive because of discordant clinical and ...
Rib Fractures - American College of Radiology
Rib Fractures - American College of Radiology

... Discussion of Imaging Modalities by Variant Suspected Rib Fracture after Minor Blunt Trauma (Injury Confined to Ribs) This variant refers to rib fractures resulting from minor blunt trauma. For severe cases of trauma please refer to the ACR Appropriateness Criteria® on “Blunt Chest Trauma.” In comb ...
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Neutron capture therapy of cancer



Neutron capture therapy (NCT) is a noninvasive therapeutic modality for treating locally invasive malignant tumors such as primary brain tumors and recurrent head and neck cancer. It is a two step procedure: first, the patient is injected with a tumor localizing drug containing a non-radioactive isotope that has a high propensity or cross section (σ) to capture slow neutrons. The cross section of the capture agent is many times greater than that of the other elements present in tissues such as hydrogen, oxygen, and nitrogen. In the second step, the patient is radiated with epithermal neutrons, which after losing energy as they penetrate tissue, are absorbed by the capture agent which subsequently emits high-energy charged particles, thereby resulting in a biologically destructive nuclear reaction (Fig.1).All of the clinical experience to date with NCT is with the non-radioactive isotope boron-10, and this is known as boron neutron capture therapy (BNCT). At this time, the use of other non-radioactive isotopes, such as gadolinium, has been limited, and to date, it has not been used clinically. BNCT has been evaluated clinically as an alternative to conventional radiation therapy for the treatment of malignant brain tumors (gliomas), and more recently, recurrent, locally advanced head and neck cancer.
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