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  1. Article ; Online: Invited Commentary: VI-RADS and Routing Patient Care at the Muscularis Propria.

    Hoegger, Mark J

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

    2023  Volume 44, Issue 3, Page(s) e230234

    MeSH term(s) Humans ; Urinary Bladder ; Urinary Bladder Neoplasms
    Language English
    Publishing date 2023-11-21
    Publishing country United States
    Document type Journal Article
    ZDB-ID 603172-9
    ISSN 1527-1323 ; 0271-5333
    ISSN (online) 1527-1323
    ISSN 0271-5333
    DOI 10.1148/rg.230234
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    Zs.A 1751: Show issues Location:
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    Jg. 1995 - 2021: Lesesall (1.OG)
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  2. Article ; Online: Post-contrast abdominal magnetic resonance imaging of critically ill patients using compressed sensing free-breathing golden radial angle imaging.

    Shetty, Anup S / Hoegger, Mark J / Das, Koushik K

    Diagnostic and interventional radiology (Ankara, Turkey)

    2024  

    Abstract: Obtaining diagnostic-quality magnetic resonance imaging (MRI) of the abdomen in critically ill patients can be difficult due to challenges with breath-holding and the inability to follow technologist instructions. Protocols that harness advances in ... ...

    Abstract Obtaining diagnostic-quality magnetic resonance imaging (MRI) of the abdomen in critically ill patients can be difficult due to challenges with breath-holding and the inability to follow technologist instructions. Protocols that harness advances in commercially available MRI techniques provide a potential solution, particularly using the golden radial angle sparse parallel (GRASP) technique for dynamic post-contrast T1-weighted imaging. The GRASP technique uses a combination of free-breathing, a stack-of-stars radial acquisition, and compressed sensing reconstruction acquired over several minutes to produce motion-free images at time points defined by the user; these include the non-contrast, arterial, venous, and delayed images, which are typical of abdominal MRI protocols. The three cases discussed herein illustrate the use of this technique in providing both exquisite image quality and diagnostic value in the care of critically ill patients with hepatopancreaticobiliary diseases. Our work aims to raise awareness of this technique and its utility in imaging patients who cannot hold their breath for dynamic T1-weighted post-contrast imaging.
    Language English
    Publishing date 2024-04-05
    Publishing country Turkey
    Document type Journal Article
    ZDB-ID 2184145-7
    ISSN 1305-3612 ; 1305-3612
    ISSN (online) 1305-3612
    ISSN 1305-3612
    DOI 10.4274/dir.2024.232646
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  3. Article ; Online: Ultrasound-Guided Thrombin Injection for the Treatment of Bleeding Following Kidney and Liver Biopsies.

    Hoegger, Mark J / Middleton, William D

    Journal of ultrasound in medicine : official journal of the American Institute of Ultrasound in Medicine

    2021  Volume 41, Issue 1, Page(s) 247–253

    Abstract: The purpose of this study was to describe the technique and outcomes of percutaneous thrombin injection into the superficial aspect of actively bleeding liver and kidney biopsy tracks identified with color Doppler ultrasound with the aim of hemorrhage ... ...

    Abstract The purpose of this study was to describe the technique and outcomes of percutaneous thrombin injection into the superficial aspect of actively bleeding liver and kidney biopsy tracks identified with color Doppler ultrasound with the aim of hemorrhage termination. After percutaneous thrombin injection, 15/16 (94%) patients did not require further intervention. Ultrasound-guided thrombin injection into the superficial site of active bleeding is an effective technique for terminating bleeding in the immediate post-procedure period following kidney and liver biopsies and should be considered if active bleeding persists on color Doppler after ≥30 minutes of compression and observation.
    MeSH term(s) Biopsy ; Hemorrhage/diagnostic imaging ; Hemorrhage/drug therapy ; Humans ; Kidney/diagnostic imaging ; Liver/diagnostic imaging ; Thrombin ; Ultrasonography, Interventional
    Chemical Substances Thrombin (EC 3.4.21.5)
    Language English
    Publishing date 2021-03-29
    Publishing country England
    Document type Journal Article
    ZDB-ID 604829-8
    ISSN 1550-9613 ; 0278-4297
    ISSN (online) 1550-9613
    ISSN 0278-4297
    DOI 10.1002/jum.15699
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    Zs.MO 495: Show issues

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  4. Article ; Online: Noteworthy: Taking Notes for Radiology Training and Beyond.

    McKenney, Anna Sophia / Klontzas, Michail E / Wattamwar, Kapil / Hoegger, Mark J

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

    2023  Volume 43, Issue 3, Page(s) e220184

    MeSH term(s) Humans ; Radiology/education ; Radiography
    Language English
    Publishing date 2023-02-09
    Publishing country United States
    Document type Editorial
    ZDB-ID 603172-9
    ISSN 1527-1323 ; 0271-5333
    ISSN (online) 1527-1323
    ISSN 0271-5333
    DOI 10.1148/rg.220184
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    Zs.A 1751: Show issues Location:
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  5. Article ; Online: A Radiology Trainee's Guide to Unique Opportunities Offered by the Radiological Society of North America.

    Ballard, David H / Hoegger, Mark J / Awan, Omer A

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

    2020  Volume 40, Issue 7, Page(s) 1953–1964

    Abstract: The Radiological Society of North America (RSNA) offers educational resources and career development opportunities through many opportunities for trainees. However, trainees frequently lack access to or awareness of these opportunities and requirements. ... ...

    Abstract The Radiological Society of North America (RSNA) offers educational resources and career development opportunities through many opportunities for trainees. However, trainees frequently lack access to or awareness of these opportunities and requirements. The purpose of this article is to promote access to RSNA trainee opportunities by illustrating their qualifications, advantages, and characteristics. Access to opportunities starts with RSNA membership, which grants access to several educational, research, and career development offerings. One focal point of RSNA opportunities is the RSNA Annual Meeting in Chicago, Ill, which provides several trainee-specific events. RSNA educational opportunities include access to board preparation content and information about emerging radiologic technologies. Research opportunities include mentor pairing, project development workshops, venues for presentation and publication, and the William W. Olmsted Editorial Fellowship for Trainees. Career development opportunities include positions for society involvement, leadership, and job searching. Collectively, the information presented in this article can guide the approach to early radiology career development for interested medical students, residents, fellows, and faculty advisers.
    Language English
    Publishing date 2020-11-02
    Publishing country United States
    Document type Journal Article
    ZDB-ID 603172-9
    ISSN 1527-1323 ; 0271-5333
    ISSN (online) 1527-1323
    ISSN 0271-5333
    DOI 10.1148/rg.2020200089
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  6. Article ; Online: Bioluminescent Tumor Signal Is Mouse Strain and Pelt Color Dependent: Experience in a Disseminated Lymphoma Model.

    Hoegger, Mark J / Longtine, Mark S / Shim, Kyuhwan / Wahl, Richard L

    Molecular imaging and biology

    2021  Volume 23, Issue 5, Page(s) 697–702

    Abstract: Background: Many preclinical cancer studies use mice with varied phenotypes to monitor tumor treatment. We compared survival and optical imaging characteristics of strains with varied coat colors harboring luciferase-expressing disseminated lymphoma.: ...

    Abstract Background: Many preclinical cancer studies use mice with varied phenotypes to monitor tumor treatment. We compared survival and optical imaging characteristics of strains with varied coat colors harboring luciferase-expressing disseminated lymphoma.
    Results: Luciferase-expressing lymphoma cells (Raji-luc) were injected via tail vein into severe combined immunodeficient (SCID) and Rag2-IL2rg (R2G2) mice, and survival was tracked. Tumor signals were obtained by imaging ventral and dorsal aspects of mice. Signal attenuation by isolated mouse pelts was measured in vitro. R2G2 mice had decreased survival compared to SCID mice (17 vs. 32 days, p<0.001) despite similar bioluminescence signal when mice were imaged dorsally (p=0.37). However, signal was 17.3-fold higher in R2G2 mice compared to SCID (p<0.001) when imaged ventrally. Isolated dark R2G2 dorsal pelts attenuated signal more than ventral pelts when placed over cells in vitro.
    Conclusions: Mouse pelt color and imaging aspect are critical considerations for quantifying bioluminescent tumor signal, and the R2G2 mouse strain may prove useful for preclinical targeted therapy studies.
    MeSH term(s) Animals ; Cell Line ; Disease Models, Animal ; Female ; Hair/physiology ; Luminescent Measurements/methods ; Lymphoma/classification ; Lymphoma/metabolism ; Lymphoma/pathology ; Lymphoma/therapy ; Mice ; Mice, SCID ; Mice, Transgenic ; Radiotherapy ; Skin Pigmentation/physiology
    Language English
    Publishing date 2021-04-08
    Publishing country United States
    Document type Journal Article ; Research Support, N.I.H., Extramural ; Research Support, Non-U.S. Gov't
    ZDB-ID 2079160-4
    ISSN 1860-2002 ; 1536-1632
    ISSN (online) 1860-2002
    ISSN 1536-1632
    DOI 10.1007/s11307-021-01594-0
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    Zs.A 6468: Show issues Location:
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  7. Article ; Online: Fat-only Dixon: how to use it in body MRI.

    Salari, Reza / Ballard, David H / Hoegger, Mark J / Young, Daniel / Shetty, Anup S

    Abdominal radiology (New York)

    2022  Volume 47, Issue 7, Page(s) 2527–2544

    Abstract: The Dixon method for fat/water separation is widely used to obtain uniform fat suppression using the water-only reconstruction. However, the fat-only reconstruction is potentially neglected in clinical practice, either not sent to the PACS or ignored ... ...

    Abstract The Dixon method for fat/water separation is widely used to obtain uniform fat suppression using the water-only reconstruction. However, the fat-only reconstruction is potentially neglected in clinical practice, either not sent to the PACS or ignored upon imaging review. Fat-only Dixon provides a valuable tool for rapid screening for microscopic fat and problem-solving of lesions of interest. This work will review the physics of Dixon fat/water separation, some clinical applications, artifacts, and protocol design considerations of Dixon imaging, and how to integrate the Dixon method into the clinical practice of body MRI.
    MeSH term(s) Adipose Tissue/diagnostic imaging ; Adipose Tissue/pathology ; Artifacts ; Humans ; Magnetic Resonance Imaging/methods ; Water
    Chemical Substances Water (059QF0KO0R)
    Language English
    Publishing date 2022-05-18
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2839786-1
    ISSN 2366-0058 ; 2366-004X
    ISSN (online) 2366-0058
    ISSN 2366-004X
    DOI 10.1007/s00261-022-03546-w
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    Zs.A 1262: Show issues Location:
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  8. Article ; Online: Enhancing the Interpretation of Unenhanced Abdominopelvic CT.

    Hoegger, Mark J / Ludwig, Daniel R / Zulfiqar, Maria / Raptis, Demetrios A / Shetty, Anup S

    Current problems in diagnostic radiology

    2022  Volume 51, Issue 5, Page(s) 787–797

    Abstract: Unenhanced abdominopelvic CT is frequently performed in patients who are critically ill or have contraindications to intravenous contrast. These cases can be challenging to interpret for the radiologist. Attention to CT physics and care in optimizing ... ...

    Abstract Unenhanced abdominopelvic CT is frequently performed in patients who are critically ill or have contraindications to intravenous contrast. These cases can be challenging to interpret for the radiologist. Attention to CT physics and care in optimizing image viewing through techniques such as windowing can maximize diagnostic yield. In this case-based review, we will discuss the CT physics concepts of attenuation, common indications and reasons for unenhanced abdominopelvic CT, and review its utility through a series of illustrative cases.
    MeSH term(s) Humans ; Retrospective Studies ; Tomography, X-Ray Computed/methods
    Language English
    Publishing date 2022-01-13
    Publishing country United States
    Document type Journal Article ; Review
    ZDB-ID 198954-6
    ISSN 1535-6302 ; 0363-0188
    ISSN (online) 1535-6302
    ISSN 0363-0188
    DOI 10.1067/j.cpradiol.2022.01.002
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  9. Article ; Online: 3D printing exposure and perception in radiology residency: survey results of radiology chief residents.

    Chen, David / Ganapathy, Aravinda / Abraham, Nihil / Marquis, Kaitlin M / Bishop, Grace L / Rybicki, Frank J / Hoegger, Mark J / Ballard, David H

    3D printing in medicine

    2023  Volume 9, Issue 1, Page(s) 13

    Abstract: Rationale and objectives: The purpose of this study is to summarize a survey of radiology chief residents focused on 3D printing in radiology.: Materials and methods: An online survey was distributed to chief residents in North American radiology ... ...

    Abstract Rationale and objectives: The purpose of this study is to summarize a survey of radiology chief residents focused on 3D printing in radiology.
    Materials and methods: An online survey was distributed to chief residents in North American radiology residencies by subgroups of the Association of University Radiologists. The survey included a subset of questions focused on the clinical use of 3D printing and perceptions of the role of 3D printing and radiology. Respondents were asked to define the role of 3D printing at their institution and asked about the potential role of clinical 3D printing in radiology and radiology residencies.
    Results: 152 individual responses from 90 programs were provided, with a 46% overall program response rate (n = 90/194 radiology residencies). Most programs had 3D printing at their institution (60%; n = 54/90 programs). Among the institutions that perform 3D printing, 33% (n = 18/54) have structured opportunities for resident contribution. Most residents (60%; n = 91/152 respondents) feel they would benefit from 3D printing exposure or educational material. 56% of residents (n = 84/151) believed clinical 3D printing should be centered in radiology departments. 22% of residents (n = 34/151) believed it would increase communication and improve relationships between radiology and surgery colleagues. A minority (5%; 7/151) believe 3D printing is too costly, time-consuming, or outside a radiologist's scope of practice.
    Conclusions: A majority of surveyed chief residents in accredited radiology residencies believe they would benefit from exposure to 3D printing in residency. 3D printing education and integration would be a valuable addition to current radiology residency program curricula.
    Language English
    Publishing date 2023-04-27
    Publishing country England
    Document type Journal Article
    ISSN 2365-6271
    ISSN (online) 2365-6271
    DOI 10.1186/s41205-023-00173-z
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  10. Article ; Online: Cure of Disseminated Human Lymphoma with [

    Longtine, Mark S / Shim, Kyuhwan / Hoegger, Mark J / Benabdallah, Nadia / Abou, Diane S / Thorek, Daniel L J / Wahl, Richard L

    Journal of nuclear medicine : official publication, Society of Nuclear Medicine

    2023  Volume 64, Issue 6, Page(s) 924–931

    Abstract: Immunotherapies that target the CD20 protein expressed on most non-Hodgkin lymphoma cells have improved clinical outcomes, but relapse is common. We ... ...

    Abstract Immunotherapies that target the CD20 protein expressed on most non-Hodgkin lymphoma cells have improved clinical outcomes, but relapse is common. We prepared
    MeSH term(s) Humans ; Mice ; Animals ; Tissue Distribution ; Mice, Inbred C57BL ; Neoplasm Recurrence, Local ; Lymphoma/pathology ; Lymphoma, Non-Hodgkin/drug therapy ; Immunoglobulin G ; Radioimmunotherapy ; Cell Line, Tumor
    Chemical Substances ofatumumab (M95KG522R0) ; Immunoglobulin G
    Language English
    Publishing date 2023-04-06
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't ; Research Support, N.I.H., Extramural
    ZDB-ID 80272-4
    ISSN 1535-5667 ; 0097-9058 ; 0161-5505 ; 0022-3123
    ISSN (online) 1535-5667
    ISSN 0097-9058 ; 0161-5505 ; 0022-3123
    DOI 10.2967/jnumed.122.265167
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    Zs.MO 328: Show issues

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