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  1. Book: Problem solving in abdominal imaging

    Dalrymple, Neal C / Leyendecker, John R / Oliphant, Michael

    (Problem solving in radiology)

    2009  

    Author's details Neal C. Dalrymple, John R. Leyendecker, Michael Oliphant
    Series title Problem solving in radiology
    MeSH term(s) Radiography, Abdominal/methods ; Diagnostic Imaging/methods
    Language English
    Size xvi, 676 p. :, ill. +
    Publisher Mosby/Elsevier
    Publishing place Philadelphia, PA
    Document type Book
    Accompanying material 1 CD-ROM (4 3/4 in.).
    ISBN 9780323043533 ; 0323043534
    Database Catalogue of the US National Library of Medicine (NLM)

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  2. Article: Cross-sectional imaging evaluation of renal masses.

    Prasad, Srinivasa R / Dalrymple, Neal C / Surabhi, Venkateswar R

    Radiologic clinics of North America

    2008  Volume 46, Issue 1, Page(s) 95–111, vi–vii

    Abstract: Most renal masses are neoplastic in origin. Recent advances in cytogenetics and oncology continue to expand our knowledge of the genesis and biology of renal tumors with their attendant implications on patient management. Current state-of-the-art CT and ... ...

    Abstract Most renal masses are neoplastic in origin. Recent advances in cytogenetics and oncology continue to expand our knowledge of the genesis and biology of renal tumors with their attendant implications on patient management. Current state-of-the-art CT and MR imaging technology permit improved detection and better characterization of renal masses. Refinements in surgical techniques and the use of novel ablative technologies to treat patients who have renal masses allow optimal management, with reduced morbidity and mortality. Elucidation of specific oncologic pathways in renal cell carcinomas has led to the development of molecularly targeted therapies. The critical role of cross-sectional imaging techniques in the diagnosis, surveillance, and management of patients who have renal masses continues to expand.
    MeSH term(s) Biopsy ; Contrast Media ; Humans ; Image Interpretation, Computer-Assisted ; Kidney Neoplasms/diagnosis ; Kidney Neoplasms/pathology ; Kidney Neoplasms/therapy ; Magnetic Resonance Imaging/methods ; Neoplasm Staging ; Tomography, X-Ray Computed/methods
    Chemical Substances Contrast Media
    Language English
    Publishing date 2008-01
    Publishing country United States
    Document type Journal Article ; Review
    ZDB-ID 215712-3
    ISSN 1557-8275 ; 0033-8389
    ISSN (online) 1557-8275
    ISSN 0033-8389
    DOI 10.1016/j.rcl.2008.01.008
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Neoplastic and non-neoplastic proliferative disorders of the perirenal space: cross-sectional imaging findings.

    Surabhi, Venkateswar R / Menias, Christine / Prasad, Srinivasa R / Patel, Ankitkumar H / Nagar, Arpit / Dalrymple, Neal C

    Radiographics : a review publication of the Radiological Society of North America, Inc

    2008  Volume 28, Issue 4, Page(s) 1005–1017

    Abstract: The perirenal space, located between the anterior and the posterior renal fasciae, is shaped like an inverted cone with an apex that extends into the iliac fossa. Perirenal tumors and pseudotumors primarily originate either from the kidney or as part of ... ...

    Abstract The perirenal space, located between the anterior and the posterior renal fasciae, is shaped like an inverted cone with an apex that extends into the iliac fossa. Perirenal tumors and pseudotumors primarily originate either from the kidney or as part of a systemic disease process and have characteristic histopathologic features and biologic behavior. The lesions may be classified on the basis of their distribution and imaging features as solitary soft-tissue masses (renal cell carcinoma, lymphangioma, hemangioma, and leiomyoma), rindlike soft-tissue lesions (lymphoma, retroperitoneal fibrosis, and Erdheim-Chester disease), masses containing macroscopic fat (angiomyolipoma, liposarcoma, myelolipoma, and extramedullary hematopoiesis), and multifocal soft-tissue masses (metastases, plasma cell tumors). Because of overlap in imaging findings among these diverse perirenal lesions, a definitive diagnosis in most cases can be established only at histopathologic analysis. However, an imaging pattern-based approach may facilitate the diagnosis and optimal management of perirenal tumors and pseudotumors.
    MeSH term(s) Connective Tissue Diseases/diagnostic imaging ; Female ; Humans ; Kidney Neoplasms/diagnostic imaging ; Male ; Soft Tissue Neoplasms/diagnostic imaging ; Tomography, X-Ray Computed/methods
    Language English
    Publishing date 2008-07
    Publishing country United States
    Document type Journal Article ; Review
    ZDB-ID 603172-9
    ISSN 1527-1323 ; 0271-5333
    ISSN (online) 1527-1323
    ISSN 0271-5333
    DOI 10.1148/rg.284075157
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Informatics in radiology (infoRAD): introduction to the language of three-dimensional imaging with multidetector CT.

    Dalrymple, Neal C / Prasad, Srinivasa R / Freckleton, Michael W / Chintapalli, Kedar N

    Radiographics : a review publication of the Radiological Society of North America, Inc

    2005  Volume 25, Issue 5, Page(s) 1409–1428

    Abstract: The recent proliferation of multi-detector row computed tomography (CT) has led to an increase in the creation and interpretation of images in planes other than the traditional axial plane. Powerful three-dimensional (3D) applications improve the utility ...

    Abstract The recent proliferation of multi-detector row computed tomography (CT) has led to an increase in the creation and interpretation of images in planes other than the traditional axial plane. Powerful three-dimensional (3D) applications improve the utility of detailed CT data but also create confusion among radiologists, technologists, and referring clinicians when trying to describe a particular method or type of image. Designing examination protocols that optimize data quality and radiation dose to the patient requires familiarity with the concepts of beam collimation and section collimation as they apply to multi-detector row CT. A basic understanding of the time-limited nature of projection data and the need for thin-section axial reconstruction for 3D applications is necessary to use the available data effectively in clinical practice. The axial reconstruction data can be used to create nonaxial two-dimensional images by means of multiplanar reformation. Multiplanar images can be thickened into slabs with projectional techniques such as average, maximum, and minimum intensity projection; ray sum; and volume rendering. By assigning a full spectrum of opacity values and applying color to the tissue classification system, volume rendering provides a robust and versatile data set for advanced imaging applications.
    MeSH term(s) Imaging, Three-Dimensional ; Terminology as Topic ; Tomography, X-Ray Computed
    Language English
    Publishing date 2005-09
    Publishing country United States
    Document type Journal Article ; Review
    ZDB-ID 603172-9
    ISSN 1527-1323 ; 0271-5333
    ISSN (online) 1527-1323
    ISSN 0271-5333
    DOI 10.1148/rg.255055044
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Price of isotropy in multidetector CT.

    Dalrymple, Neal C / Prasad, Srinivasa R / El-Merhi, Fadi M / Chintapalli, Kedar N

    Radiographics : a review publication of the Radiological Society of North America, Inc

    2007  Volume 27, Issue 1, Page(s) 49–62

    Abstract: Recent advances in multidetector computed tomography (CT) have made isotropic data acquisition feasible for nearly every application. The benefits of routine use of isotropic data for image display and interpretation have been described in the literature ...

    Abstract Recent advances in multidetector computed tomography (CT) have made isotropic data acquisition feasible for nearly every application. The benefits of routine use of isotropic data for image display and interpretation have been described in the literature and at educational conferences. However, there is usually a trade-off in the form of an increased radiation dose to the patient. The parameters that affect the radiation dose vary considerably in accordance with the CT scanner design, and those variations determine the cost in dose increase relative to the voxel size. The detector configuration and beam collimation (narrow or wide) used for a particular acquisition also affect the voxel size and the relationship between spatial resolution and the radiation dose. By closely comparing the quality of multidetector CT images obtained with different detector configurations on scanners with four, 16, 40, and 64 channels and the estimated radiation exposure incurred with each option, radiologists may achieve an understanding of the relationship between radiation dose and voxel size. This understanding, in turn, may help balance the need for diagnostic image quality against the concern for patient safety.
    MeSH term(s) Algorithms ; Anisotropy ; Equipment Design ; Equipment Failure Analysis ; Image Enhancement/instrumentation ; Image Enhancement/methods ; Image Interpretation, Computer-Assisted/instrumentation ; Image Interpretation, Computer-Assisted/methods ; Imaging, Three-Dimensional/instrumentation ; Imaging, Three-Dimensional/methods ; Reproducibility of Results ; Sensitivity and Specificity ; Technology Assessment, Biomedical ; Tomography, X-Ray Computed/instrumentation ; Tomography, X-Ray Computed/methods ; Transducers
    Language English
    Publishing date 2007-01
    Publishing country United States
    Document type Journal Article ; Review
    ZDB-ID 603172-9
    ISSN 1527-1323 ; 0271-5333
    ISSN (online) 1527-1323
    ISSN 0271-5333
    DOI 10.1148/rg.271065037
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article: 3-Dimensional magnetic resonance genitography: a different look at cloacal malformations.

    Baughman, Steven M / Richardson, Randy R / Podberesky, Daniel J / Dalrymple, Neal C / Yerkes, Elizabeth B

    The Journal of urology

    2007  Volume 178, Issue 4 Pt 2, Page(s) 1675–8; discussion 1678–9

    Abstract: Purpose: Standard contrast genitography and endoscopy have been the cornerstone of preoperative investigation of anatomy in complex cloacal malformations. In many cases standard genitography is ambiguous and lengthy endoscopy may be required to define ... ...

    Abstract Purpose: Standard contrast genitography and endoscopy have been the cornerstone of preoperative investigation of anatomy in complex cloacal malformations. In many cases standard genitography is ambiguous and lengthy endoscopy may be required to define the anatomy. Nonenhanced magnetic resonance imaging lacks definition of the nondistended common channel and confluence. To our knowledge we introduce 3-dimensional magnetic resonance genitography for delineating the unique anatomical features of these complex anomalies.
    Materials and methods: Contrast genitography, endoscopy and 3-dimensional magnetic resonance genitography were performed preoperatively in 4 female infants with cloacal malformations. Three-dimensional magnetic resonance genitography was performed using a 3-dimensional spoiled gradient technique after the instillation of gadolinium-diethylenetetramine pentaacetic acid solution via the common channel and cutaneous vesicostomy, when present. Augmented pressure distal colostogram with gadolinium via the mucous fistula was included. Three-dimensional images were constructed using a commercially available workstation.
    Results: Three-dimensional magnetic resonance genitography yielded anatomical information far superior to that of standard genitography in all cases and it provided information on female genital tract anomalies and hindgut confluence that were not fully appreciated at initial endoscopy. The confluence was most accurately represented by augmented pressure colostogram. The length of the common channel was consistent with that on endoscopy. Rotating 3-dimensional images illustrated the unique anatomical relationships. No magnetic resonance imaging specific complications were observed.
    Conclusions: Three-dimensional magnetic resonance genitography provides superior anatomical detail for the preoperative assessment of cloacal malformations. It augments the information obtained by standard magnetic resonance imaging of the pelvic organs, levators and lumbosacral spine. Three-dimensional magnetic resonance genitography has great potential as a standard for preoperative anatomical evaluation and it will likely simplify preoperative endoscopy rather than supplant it.
    MeSH term(s) Cloaca/abnormalities ; Contrast Media ; Female ; Gadolinium DTPA ; Humans ; Image Processing, Computer-Assisted ; Imaging, Three-Dimensional ; Infant ; Magnetic Resonance Imaging/methods
    Chemical Substances Contrast Media ; Gadolinium DTPA (K2I13DR72L)
    Language English
    Publishing date 2007-10
    Publishing country United States
    Document type Journal Article
    ZDB-ID 3176-8
    ISSN 1527-3792 ; 0022-5347
    ISSN (online) 1527-3792
    ISSN 0022-5347
    DOI 10.1016/j.juro.2007.03.196
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article: Computerized tomography guided radio frequency ablation of a renal cell carcinoma within a renal allograft.

    Baughman, Steven M / Sexton, Wade J / Glanton, Christopher W / Dalrymple, Neal C / Bishoff, Jay T

    The Journal of urology

    2004  Volume 172, Issue 4 Pt 1, Page(s) 1262–1263

    MeSH term(s) Carcinoma, Renal Cell/diagnostic imaging ; Carcinoma, Renal Cell/surgery ; Catheter Ablation ; Follow-Up Studies ; Humans ; Image Processing, Computer-Assisted ; Imaging, Three-Dimensional ; Kidney Neoplasms/diagnostic imaging ; Kidney Neoplasms/surgery ; Kidney Transplantation ; Male ; Middle Aged ; Postoperative Complications/diagnostic imaging ; Postoperative Complications/surgery ; Surgery, Computer-Assisted ; Tomography, X-Ray Computed ; Treatment Outcome
    Language English
    Publishing date 2004-09-02
    Publishing country United States
    Document type Case Reports ; Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 3176-8
    ISSN 1527-3792 ; 0022-5347
    ISSN (online) 1527-3792
    ISSN 0022-5347
    DOI 10.1097/01.ju.0000140138.97968.ca
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: Training future generations to deliver evidence‐based conservation and ecosystem management

    Harriet Downey / Tatsuya Amano / Marc Cadotte / Carly N. Cook / Steven J. Cooke / Neal R. Haddaway / Julia P. G. Jones / Nick Littlewood / Jessica C. Walsh / Mark I. Abrahams / Gilbert Adum / Munemitsu Akasaka / Jose A. Alves / Rachael E. Antwis / Eduardo C. Arellano / Jan Axmacher / Holly Barclay / Lesley Batty / Ana Benítez‐López /
    Joseph R. Bennett / Maureen J. Berg / Sandro Bertolino / Duan Biggs / Friederike C. Bolam / Tim Bray / Barry W. Brook / Joseph W. Bull / Zuzana Burivalova / Mar Cabeza / Alienor L. M. Chauvenet / Alec P. Christie / Lorna Cole / Alison J. Cotton / Sam Cotton / Sara A. O. Cousins / Dylan Craven / Will Cresswell / Jeremy J. Cusack / Sarah E. Dalrymple / Zoe G. Davies / Anita Diaz / Jennifer A. Dodd / Adam Felton / Erica Fleishman / Charlie J. Gardner / Ruth Garside / Arash Ghoddousi / James J. Gilroy / David A. Gill / Jennifer A. Gill

    Ecological Solutions and Evidence, Vol 2, Iss 1, Pp n/a-n/a (2021)

    2021  

    Abstract: Abstract 1. To be effective, the next generation of conservation practitioners and managers need to be critical thinkers with a deep understanding of how to make evidence‐based decisions and of the value of evidence synthesis. 2. If, as educators, we do ... ...

    Abstract Abstract 1. To be effective, the next generation of conservation practitioners and managers need to be critical thinkers with a deep understanding of how to make evidence‐based decisions and of the value of evidence synthesis. 2. If, as educators, we do not make these priorities a core part of what we teach, we are failing to prepare our students to make an effective contribution to conservation practice. 3. To help overcome this problem we have created open access online teaching materials in multiple languages that are stored in Applied Ecology Resources. So far, 117 educators from 23 countries have acknowledged the importance of this and are already teaching or about to teach skills in appraising or using evidence in conservation decision‐making. This includes 145 undergraduate, postgraduate or professional development courses. 4. We call for wider teaching of the tools and skills that facilitate evidence‐based conservation and also suggest that providing online teaching materials in multiple languages could be beneficial for improving global understanding of other subject areas.
    Keywords critical thinking ; education ; evidence ; open access ; Environmental sciences ; GE1-350 ; Ecology ; QH540-549.5
    Subject code 333
    Language English
    Publishing date 2021-01-01T00:00:00Z
    Publisher Wiley
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  9. Article: Percutaneous radiofrequency ablation of hepatic tumors against the diaphragm: frequency of diaphragmatic injury.

    Head, Hayden W / Dodd, Gerald D / Dalrymple, Neal C / Prasad, Srinivas R / El-Merhi, Fadi M / Freckleton, Michael W / Hubbard, Linda G

    Radiology

    2007  Volume 243, Issue 3, Page(s) 877–884

    Abstract: Purpose: To retrospectively determine the frequency of diaphragmatic injury when percutaneous hepatic radiofrequency (RF) ablation is performed adjacent to the diaphragm.: Materials and methods: Institutional Review Board approval was obtained for ... ...

    Abstract Purpose: To retrospectively determine the frequency of diaphragmatic injury when percutaneous hepatic radiofrequency (RF) ablation is performed adjacent to the diaphragm.
    Materials and methods: Institutional Review Board approval was obtained for our HIPAA-compliant study. Informed consent for the ablation procedure and for use of related data for future research was obtained from each patient. A retrospective review was conducted of 215 patients undergoing percutaneous RF ablation of hepatic tumors. Twenty-nine patients (21 men and eight women; age, 41-89 years) were identified with tumors abutting the diaphragm. Episodes of right shoulder pain were recorded. A panel of radiologists blinded to the patients' clinical histories reviewed their imaging for evidence of diaphragmatic injury and ablation success. A generalized estimating equation model and the Fisher exact test were used for statistical analysis.
    Results: The 29 patients had a total of 33 tumors abutting the diaphragm. Tumor size was 1.3-5.5 cm (mean, 3.2 cm +/- 1.1). After ablation, five (17%) patients reported right shoulder pain. In four, pain was mild or moderate, with symptoms lasting 2-14 days (median, 5.5 days). Three of these showed diaphragmatic thickening on postablation computed tomographic (CT) scans. One patient had severe pain lasting 2 weeks, followed by milder pain for 2 months. This patient's postablation CT images showed focal nodular diaphragmatic thickening. This patient was treated with a multitined device; the other four, with straight-needle devices. Local tumor progression was seen in 14 tumors (42.4%). Tumors 3 cm or smaller had a much lower local progression rate than tumors larger than 3 cm (12.5% vs 70.6%).
    Conclusion: Of 29 patients who had ablation of hepatic tumors adjacent to the diaphragm, five (17%) had diaphragmatic injury, which was clinically apparent with right shoulder pain.
    MeSH term(s) Adult ; Aged ; Aged, 80 and over ; Catheter Ablation/statistics & numerical data ; Diaphragm/diagnostic imaging ; Diaphragm/injuries ; Female ; Humans ; Incidence ; Liver Neoplasms/diagnostic imaging ; Liver Neoplasms/epidemiology ; Liver Neoplasms/surgery ; Male ; Middle Aged ; Radiography ; Retrospective Studies ; Risk Assessment/methods ; Risk Factors ; Shoulder Pain/diagnosis ; Shoulder Pain/epidemiology ; Texas/epidemiology ; Treatment Outcome
    Language English
    Publishing date 2007-06
    Publishing country United States
    Document type Journal Article
    ZDB-ID 80324-8
    ISSN 1527-1315 ; 0033-8419
    ISSN (online) 1527-1315
    ISSN 0033-8419
    DOI 10.1148/radiol.2433060157
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article ; Online: Common and uncommon histologic subtypes of renal cell carcinoma: imaging spectrum with pathologic correlation.

    Prasad, Srinivasa R / Humphrey, Peter A / Catena, Jay R / Narra, Vamsi R / Srigley, John R / Cortez, Arthur D / Dalrymple, Neal C / Chintapalli, Kedar N

    Radiographics : a review publication of the Radiological Society of North America, Inc

    2006  Volume 26, Issue 6, Page(s) 1795–806; discussion 1806–10

    Abstract: Renal cell carcinoma (RCC) is a cause of significant morbidity and mortality, with an estimated 35,000 new cases and 12,480 deaths in the United States in 2003. Recent advances in imaging technology, pathology, urology, and oncology permit early ... ...

    Abstract Renal cell carcinoma (RCC) is a cause of significant morbidity and mortality, with an estimated 35,000 new cases and 12,480 deaths in the United States in 2003. Recent advances in imaging technology, pathology, urology, and oncology permit early diagnosis of RCC and facilitate optimal management. The 2004 World Health Organization classification for renal neoplasms recognizes several distinct histologic subtypes of RCC. These subtypes include clear cell RCC, papillary RCC, chromophobe RCC, hereditary cancer syndromes, multilocular cystic RCC, collecting duct carcinoma, medullary carcinoma, mucinous tubular and spindle cell carcinoma, neuroblastoma-associated RCC, Xp11.2 translocation-TFE3 carcinoma, and unclassified lesions. Different histologic subtypes of RCC have characteristic histomorphologic and biologic profiles. Clear cell RCC is the most common subtype and has a less favorable prognosis (stage for stage) than do papillary RCC and chromophobe RCC. Collecting duct carcinoma and renal medullary carcinoma are associated with aggressive clinical behavior and a poor prognosis.
    MeSH term(s) Carcinoma, Renal Cell/classification ; Carcinoma, Renal Cell/diagnostic imaging ; Carcinoma, Renal Cell/pathology ; Humans ; Image Enhancement/methods ; Kidney Neoplasms/classification ; Kidney Neoplasms/diagnostic imaging ; Kidney Neoplasms/pathology ; Practice Guidelines as Topic ; Practice Patterns, Physicians' ; Radiography ; Rare Diseases ; Statistics as Topic
    Language English
    Publishing date 2006-11
    Publishing country United States
    Document type Journal Article ; Review
    ZDB-ID 603172-9
    ISSN 1527-1323 ; 0271-5333
    ISSN (online) 1527-1323
    ISSN 0271-5333
    DOI 10.1148/rg.266065010
    Database MEDical Literature Analysis and Retrieval System OnLINE

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