CLASSlCAL RADIATION THERAPY
... Basic dose distribution data are usually measured in a water phantom, which closely approximates the radiation absorption and scattering properties of muscle and other soft tissues. Another reason for the choice ofwater as a phantom material is that it is universally available with reproducible radi ...
... Basic dose distribution data are usually measured in a water phantom, which closely approximates the radiation absorption and scattering properties of muscle and other soft tissues. Another reason for the choice ofwater as a phantom material is that it is universally available with reproducible radi ...
-1 - 1. Introduction: The specialty of radiology has grown enormously
... By completion of the educational program, the graduate physician will be competent to function as a specialist in Diagnostic Radiology. The physician will be able to advise on, supervise, and perform the imaging procedures to such a level of competence, and across a broad range of radiological pract ...
... By completion of the educational program, the graduate physician will be competent to function as a specialist in Diagnostic Radiology. The physician will be able to advise on, supervise, and perform the imaging procedures to such a level of competence, and across a broad range of radiological pract ...
Fall 2007 PDF 5MB
... GE Healthcare introduces Cube™, a new volumetric fast spin echo (FSE) imaging sequence available on the Signa® HDxt 1.5T and 3T platforms. Optimized for T2, T2 FLAIR and Proton Density imaging, Cube captures the entire volume with high spatial, isotropic resolution. As a result, any view, plane or s ...
... GE Healthcare introduces Cube™, a new volumetric fast spin echo (FSE) imaging sequence available on the Signa® HDxt 1.5T and 3T platforms. Optimized for T2, T2 FLAIR and Proton Density imaging, Cube captures the entire volume with high spatial, isotropic resolution. As a result, any view, plane or s ...
Evaluation of absorbed dose and image quality in mammography
... Mammography refers to the X-ray examination of the human breast, and is considered the single most important diagnostic tool in the early detection of breast cancer, which is by far the most common cancer among women. There is good evidence from clinical trials, that mammographic screening can reduc ...
... Mammography refers to the X-ray examination of the human breast, and is considered the single most important diagnostic tool in the early detection of breast cancer, which is by far the most common cancer among women. There is good evidence from clinical trials, that mammographic screening can reduc ...
PET/MR — a rapidly growing technique of imaging in oncology and
... evaluation of treatment response and early detection of recurrence. In PET/CT scans involving 18F-FDG a possibility of accurate assessment of the T stage was documented in many diagnoses, e.g. in head and neck tumors, non-small-cell carcinoma of the lungs and large intestine cancer [26–29]. The eval ...
... evaluation of treatment response and early detection of recurrence. In PET/CT scans involving 18F-FDG a possibility of accurate assessment of the T stage was documented in many diagnoses, e.g. in head and neck tumors, non-small-cell carcinoma of the lungs and large intestine cancer [26–29]. The eval ...
Assessing The Clinical Application Of The Van Herk Margin Formula
... The van Herk margin formula (VHMF) was developed to calculate the minimum margin on the target to provide full coverage by 95% of the prescribed dose to 90% of the population. However, this formula is based on an ideal dose profile model that is not realistic for lung radiotherapy. The purpose of th ...
... The van Herk margin formula (VHMF) was developed to calculate the minimum margin on the target to provide full coverage by 95% of the prescribed dose to 90% of the population. However, this formula is based on an ideal dose profile model that is not realistic for lung radiotherapy. The purpose of th ...
SERIES IAEA HUMAN HEALTH SERIES
... The application of radiation in the diagnosis and treatment of disease is an important component of the work of the IAEA. In the area of diagnostic radiology, this work is currently focused on quality assurance (QA) methods to promote the effective use of radiation for a diagnostic outcome through a ...
... The application of radiation in the diagnosis and treatment of disease is an important component of the work of the IAEA. In the area of diagnostic radiology, this work is currently focused on quality assurance (QA) methods to promote the effective use of radiation for a diagnostic outcome through a ...
Nuclear Medicine in Musculoskeletal Disorders
... 2. Normal bone scintigraphy Bone scan is a diagnostic technique used to assess the presence of anomalies in the distribution pattern of bone formation. It has high sensitivity, but specificity is frequently variable or limited. Three-phase bone scintigraphy is currently the most used technique becau ...
... 2. Normal bone scintigraphy Bone scan is a diagnostic technique used to assess the presence of anomalies in the distribution pattern of bone formation. It has high sensitivity, but specificity is frequently variable or limited. Three-phase bone scintigraphy is currently the most used technique becau ...
thyroid scintigraphy new 2011
... IODINE RADIO-ISOTOPES eg I-131(reactor) and I-123(cyclotron) IODINE 131: ...
... IODINE RADIO-ISOTOPES eg I-131(reactor) and I-123(cyclotron) IODINE 131: ...
the Abstract-Book here
... Being ready for the future means having an MR system that can not only grow beyond its original design, but surpass it. The Discovery* MR750w and Optima* MR450w were designed with the ability to go further than the traditional boundaries of radiology. If you’re looking for a system capable of imagin ...
... Being ready for the future means having an MR system that can not only grow beyond its original design, but surpass it. The Discovery* MR750w and Optima* MR450w were designed with the ability to go further than the traditional boundaries of radiology. If you’re looking for a system capable of imagin ...
Three-Dimensional Analysis of Left Ventricular Geometry Using
... assumed left ventricular mass(LVM)and one-dimensional eccentricity(relative wall thickness : RWT), remains questionable. This study evaluated the feasibility of three-dimensional left ventricular geometric analysis using magnetic resonance imaging (MRI). Methods. Echocardiography and MRI were perfor ...
... assumed left ventricular mass(LVM)and one-dimensional eccentricity(relative wall thickness : RWT), remains questionable. This study evaluated the feasibility of three-dimensional left ventricular geometric analysis using magnetic resonance imaging (MRI). Methods. Echocardiography and MRI were perfor ...
ACR Appropriateness Criteria Radiographically 10
... opacity r3 cm in diameter surrounded by lung parenchyma.1 There should be no associated abnormality, including atelectasis or hilar lymphadenopathy. This definition is based on information obtained from chest radiographs. On computed tomography (CT), nodules are described as being solid, semisolid (m ...
... opacity r3 cm in diameter surrounded by lung parenchyma.1 There should be no associated abnormality, including atelectasis or hilar lymphadenopathy. This definition is based on information obtained from chest radiographs. On computed tomography (CT), nodules are described as being solid, semisolid (m ...
Welcome to Vienna. Welcome to the flower gardens of radiology
... and disciplines. As President, I am very happy to see that, increasingly, the ECR has also become the flagship meeting of the European Federation of Radiographer Societies (EFRS). A growing number of educational sessions and workshops have been planned especially for radiographers. In particular, I ...
... and disciplines. As President, I am very happy to see that, increasingly, the ECR has also become the flagship meeting of the European Federation of Radiographer Societies (EFRS). A growing number of educational sessions and workshops have been planned especially for radiographers. In particular, I ...
IAEA HUMAN HEALTH SERIES No. 11
... the clinical utility of the images. PET/CT, used with [18F]-FDG as a radiotracer, has had such an impact on patient management that it has reformed many traditional diagnostic approaches, and offers a new tool to be used in the development of protocols and strategies in oncology. The use of clinical ...
... the clinical utility of the images. PET/CT, used with [18F]-FDG as a radiotracer, has had such an impact on patient management that it has reformed many traditional diagnostic approaches, and offers a new tool to be used in the development of protocols and strategies in oncology. The use of clinical ...
Theranostics Prospective of 68Ga-Radiopharmaceutical Development
... Thus alternative imaging agents with specific binding capability to e.g. receptors, antigens, enzymes are of strong interest. Specific imaging agents providing information on the molecular and cellular background of various diseases and in particular cancer would allow improvement in patient managem ...
... Thus alternative imaging agents with specific binding capability to e.g. receptors, antigens, enzymes are of strong interest. Specific imaging agents providing information on the molecular and cellular background of various diseases and in particular cancer would allow improvement in patient managem ...
Cone beam computed tomography functionalities in dentistry
... advantages, including no folded images, measuring ratio of 1:1, no geometric distortion, and 3D demonstration. It is worth mentioning that, by using a relatively low ionic radiation, CBCT provides a 3D representation from hard tissues along with little information from soft tissues.[6] Common CT sys ...
... advantages, including no folded images, measuring ratio of 1:1, no geometric distortion, and 3D demonstration. It is worth mentioning that, by using a relatively low ionic radiation, CBCT provides a 3D representation from hard tissues along with little information from soft tissues.[6] Common CT sys ...
Fellowship in Pediatric Radiology
... scheduled days during the 8.5 months). Rotations are spent in each of the following departmental divisions: Musculoskeletal (one 2-week block), Nuclear Medicine (two 2week blocks), and Interventional Radiology (2 weeks + 10 days). (See the sample rotation schedule.) In each of these areas, the fello ...
... scheduled days during the 8.5 months). Rotations are spent in each of the following departmental divisions: Musculoskeletal (one 2-week block), Nuclear Medicine (two 2week blocks), and Interventional Radiology (2 weeks + 10 days). (See the sample rotation schedule.) In each of these areas, the fello ...
New Doppler echocardiographic applications for the study of
... (PV) Doppler flow indices have been used to evaluate different parameters of diastolic function, including LV filling pressure, relaxation and stiffness (1– 4). These indices are used not only for diagnostic purposes but also for establishing prognosis and evaluating the effect of therapeutic interv ...
... (PV) Doppler flow indices have been used to evaluate different parameters of diastolic function, including LV filling pressure, relaxation and stiffness (1– 4). These indices are used not only for diagnostic purposes but also for establishing prognosis and evaluating the effect of therapeutic interv ...
Exclusion of Unstable Cervical Spine Injury in Obtunded Patients
... PURPOSE: To retrospectively determine what information, if any, magnetic resonance (MR) imaging of the cervical spine in obtunded and/or “unreliable” patients with blunt trauma adds to multi– detector row computed tomography (CT) of the entire cervical spine (including routine multiplanar sagittal a ...
... PURPOSE: To retrospectively determine what information, if any, magnetic resonance (MR) imaging of the cervical spine in obtunded and/or “unreliable” patients with blunt trauma adds to multi– detector row computed tomography (CT) of the entire cervical spine (including routine multiplanar sagittal a ...
Advances in Magnetic Resonance Imaging: How They Are
... Context: Although magnetic resonance imaging (MRI) is emerging as the most commonly used imaging modality for prostate cancer (PCa) detection, treatment planning, and follow-up, its acceptance has not been uniform. Recently, great interest has been shown in multiparametric MRI, which combines anatom ...
... Context: Although magnetic resonance imaging (MRI) is emerging as the most commonly used imaging modality for prostate cancer (PCa) detection, treatment planning, and follow-up, its acceptance has not been uniform. Recently, great interest has been shown in multiparametric MRI, which combines anatom ...
American Association of Physicists in Medicine 40th Annual
... On behalf of the individuals listed above, I would like to thank all of those responsible for organizing the 1998 AAPM Annual Meeting. The success of the meeting is a result of the untiring efforts and voluntary time contributed by many AAPM Members. This is a landmark year for the Annual Meeting fo ...
... On behalf of the individuals listed above, I would like to thank all of those responsible for organizing the 1998 AAPM Annual Meeting. The success of the meeting is a result of the untiring efforts and voluntary time contributed by many AAPM Members. This is a landmark year for the Annual Meeting fo ...
Colon capsule endoscopy: European Society of Gastrointestinal
... not to detect all the prevalent CRC (i. e. 100 % sensitivity), but to ...
... not to detect all the prevalent CRC (i. e. 100 % sensitivity), but to ...
PDF - Journal of Advanced Medical and Dental Sciences
... radiography results in an under-estimation of the incidence of apical periodontitis7. Lesion confined within the cancellous bone cannot be detected by conventional radiographs, whereas they are easily detected in CBCT which captures images in slices thereby avoiding anatomic superimposition. CBCT is ...
... radiography results in an under-estimation of the incidence of apical periodontitis7. Lesion confined within the cancellous bone cannot be detected by conventional radiographs, whereas they are easily detected in CBCT which captures images in slices thereby avoiding anatomic superimposition. CBCT is ...
Venous malformations
... For large, infiltrating malformations that are difficult to delineate, combined sclerotherapy with ablative and reconstructive surgery is indicated ...
... For large, infiltrating malformations that are difficult to delineate, combined sclerotherapy with ablative and reconstructive surgery is indicated ...
dual energy computed tomography for proton therapy treatment
... The uncertainties in SPRs estimated using the kV-MV DECT were analyzed further and compared to those using the stoichiometric method. The uncertainties in SPR estimation can be divided into five categories according to their origins: the inherent uncertainty, the DECT modeling uncertainty, the CT im ...
... The uncertainties in SPRs estimated using the kV-MV DECT were analyzed further and compared to those using the stoichiometric method. The uncertainties in SPR estimation can be divided into five categories according to their origins: the inherent uncertainty, the DECT modeling uncertainty, the CT im ...
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.