Full Text Journal Articles by
Author Martin L Gunn

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A Method for Reducing Variability Across Dual-Energy CT Manufacturers in Quantification of Low Iodine Content Levels.

Larry M Cai, Daniel S Hippe, David A Zamora, Jinjin Cao, Anushri Parakh, Avinash R Kambadakone, Jennifer M Xiao, Sherry S Wang, Giuseppe V Toia, Martin L Gunn, Carolyn L Wang, Achille Mileto,

<b>Background:</b> Clinical use of the dual-energy CT (DECT) iodine quantification technique is hindered by between-platform (i.e., across different manufacturers) variability in iodine concentration (IC), particularly at low iodine levels. <b>Objective:</b> To develop in an anthropomorphic phantom a method for reducing between-platform variability in quantification of low iodine content levels using ... Read more >>

AJR Am J Roentgenol (AJR. American journal of roentgenology)
[2021, :]

Cited: 0 times

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Management of gastrointestinal bleeding: Society of Abdominal Radiology (SAR) Institutional Survey.

Jeff L Fidler, Flavius F Guglielmo, Olga R Brook, Lisa L Strate, David H Bruining, Avneesh Gupta, Brian C Allen, Mark A Anderson, Michael L Wells, Vijay Ramalingam, Martin L Gunn, David J Grand, Michael S Gee, Alvaro Huete, Ashish Khandalwal, Farnoosh Sokhandon, Seong Ho Park, Don C Yoo, Jorge A Soto,

Despite guidelines developed to standardize the diagnosis and management of gastrointestinal (GI) bleeding, significant variability remains in recommendations and practice. The purpose of this survey was to obtain information on practice patterns for the evaluation of overt lower GI bleeding (LGIB) and suspected small bowel bleeding. A 34-question electronic survey ... Read more >>

Abdom Radiol (NY) (Abdominal radiology (New York))
[2021, :]

Cited: 0 times

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Gastrointestinal Bleeding at CT Angiography and CT Enterography: Imaging Atlas and Glossary of Terms.

Flavius F Guglielmo, Michael L Wells, David H Bruining, Lisa L Strate, Álvaro Huete, Avneesh Gupta, Jorge A Soto, Brian C Allen, Mark A Anderson, Olga R Brook, Michael S Gee, David J Grand, Martin L Gunn, Ashish Khandelwal, Seong Ho Park, Vijay Ramalingam, Farnoosh Sokhandon, Don C Yoo, Jeff L Fidler,

Gastrointestinal (GI) bleeding is a common potentially life-threatening medical condition frequently requiring multidisciplinary collaboration to reach the proper diagnosis and guide management. GI bleeding can be <i>overt</i> (eg, visible hemorrhage such as hematemesis, hematochezia, or melena) or <i>occult</i> (eg, positive fecal occult blood test or iron deficiency anemia). <i>Upper GI ... Read more >>

Radiographics (Radiographics : a review publication of the Radiological Society of North America, Inc)
[2021, 41(6):1632-1656]

Cited: 0 times

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Determining Follow-Up Imaging Study Using Radiology Reports.

Sandeep Dalal, Vadiraj Hombal, Wei-Hung Weng, Gabe Mankovich, Thusitha Mabotuwana, Christopher S Hall, Joseph Fuller, Bruce E Lehnert, Martin L Gunn,

Radiology reports often contain follow-up imaging recommendations. Failure to comply with these recommendations in a timely manner can lead to delayed treatment, poor patient outcomes, complications, unnecessary testing, lost revenue, and legal liability. The objective of this study was to develop a scalable approach to automatically identify the completion of ... Read more >>

J Digit Imaging (Journal of digital imaging)
[2020, 33(1):121-130]

Cited: 4 times

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Society of abdominal radiology gastrointestinal bleeding disease-focused panel consensus recommendations for CTA technical parameters in the evaluation of acute overt gastrointestinal bleeding.

Jeff L Fidler, Martin L Gunn, Jorge A Soto, Olga R Brook, Brian C Allen, Flavius F Guglielmo, David J Grand, Michael S Gee, Michael L Wells, Alvaro Huete, Ashish Khandalwal, Farnoosh Sokhandon, Vijay Ramalingam, Mahmoud M Al-Hawary, Christina A LeBedis, Seong Ho Park,

<h4>Purpose</h4>To formulate consensus recommendations for CT angiography technical parameters used to evaluate overt gastrointestinal (GI) bleeding.<h4>Methods</h4>An electronic questionnaire consisting of 17 questions was sent to a panel of 16 radiologists with expertise on the imaging of GI bleeding from the Society of Abdominal Radiology GI Bleeding disease-focused panel to obtain ... Read more >>

Abdom Radiol (NY) (Abdominal radiology (New York))
[2019, 44(9):2957-2962]

Cited: 1 time

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Clinical and Payer-Based Analysis of Value of Dual-Energy Computed Tomography for Workup of Incidental Abdominal Findings.

Malak Itani, Brian W Bresnahan, Kenneth Rice, Martin L Gunn, Sherry S Wang, Jonathan W Revels, Achille Mileto,

<h4>Objective</h4>To perform a clinical and payer-based analysis of the value of dual-energy computed tomography (DECT) for workup of incidental abdominal findings.<h4>Methods</h4>This was a single-center, retrospectively designed, Health Insurance Portability and Accountability Act-compliant study approved by our institutional review board. Sixty-nine examinations in 69 patients (45 men, 24 women; mean age, ... Read more >>

J Comput Assist Tomogr (Journal of computer assisted tomography)
[2019, 43(4):605-611]

Cited: 3 times

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Automated Tracking of Follow-Up Imaging Recommendations.

Thusitha Mabotuwana, Christopher S Hall, Vadiraj Hombal, Prashanth Pai, Usha Nandini Raghavan, Shawn Regis, Brady McKee, Sandeep Dalal, Christoph Wald, Martin L Gunn,

<h4>Objective</h4>Radiology reports often contain follow-up imaging recommendations. Failure to comply with these recommendations in a timely manner can lead to poor patient outcomes, complications, and legal liability. As such, the primary objective of this research was to determine adherence rates to follow-up recommendations.<h4>Materials and methods</h4>Radiology-related examination data, including report text, ... Read more >>

AJR Am J Roentgenol (AJR. American journal of roentgenology)
[2019, :1-8]

Cited: 1 time

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Environmental Factors Predictive of No-Show Visits in Radiology: Observations of Three Million Outpatient Imaging Visits Over 16 Years.

Rebecca J Mieloszyk, Joshua I Rosenbaum, Christopher S Hall, Daniel S Hippe, Martin L Gunn, Puneet Bhargava,

<h4>Purpose</h4>To evaluate the impact of environmental and socioeconomic factors on outpatient cancellations and "no-show visits" (NSVs) in radiology.<h4>Materials and methods</h4>We conducted a retrospective analysis by collecting environmental factor data related to outpatient radiology visits occurring between 2000 and 2015 at our multihospital academic institution. Appointment attendance records were joined with ... Read more >>

J Am Coll Radiol (Journal of the American College of Radiology : JACR)
[2019, 16(4 Pt B):554-559]

Cited: 1 time

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Automatic Normalization of Anatomical Phrases in Radiology Reports Using Unsupervised Learning.

Amir M Tahmasebi, Henghui Zhu, Gabriel Mankovich, Peter Prinsen, Prescott Klassen, Sam Pilato, Rob van Ommering, Pritesh Patel, Martin L Gunn, Paul Chang,

In today's radiology workflow, free-text reporting is established as the most common medium to capture, store, and communicate clinical information. Radiologists routinely refer to prior radiology reports of a patient to recall critical information for new diagnosis, which is quite tedious, time consuming, and prone to human error. Automatic structuring ... Read more >>

J Digit Imaging (Journal of digital imaging)
[2019, 32(1):6-18]

Cited: 6 times

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Detecting Technical Image Quality in Radiology Reports.

Thusitha Mabotuwana, Varun S Bhandarkar, Christopher S Hall, Martin L Gunn,

Image interpretation accuracy is critical to ensure optimal care, yet many diagnostic reports contain expressions of uncertainty often due to shortcomings in technical quality among other factors. While radiologists will usually attempt to interpret images and render a diagnosis even if the imaging quality is suboptimal, often the details related ... Read more >>

AMIA Annu Symp Proc (AMIA ... Annual Symposium proceedings. AMIA Symposium)
[2018, 2018:780-788]

Cited: 0 times

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Repeat CT Performed Within One Month of CT Conducted in the Emergency Department for Abdominal Pain: A Secondary Analysis of Data From a Prospective Multicenter Study.

Leslie K Lee, Andrew T Reisner, William D Binder, Atif Zaheer, Martin L Gunn, Ken F Linnau, Chad M Miller, Maurice S Herring, Angela C Tramontano, Avinash Kambadakone, Onofrio A Catalano, Mukesh Harisinghani, Elkan F Halpern, Karen Donelan, G Scott Gazelle, Pari V Pandharipande,

<h4>Objective</h4>The purpose of this study is to determine both the frequency of repeat CT performed within 1 month after a patient visits the emergency department (ED) and undergoes CT evaluation for abdominal pain and the frequency of worsened or new CT-based diagnoses.<h4>Subjects and methods</h4>Secondary analysis was performed on data collected ... Read more >>

AJR Am J Roentgenol (AJR. American journal of roentgenology)
[2019, 212(2):382-385]

Cited: 1 time

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Diagnostic yield of non-invasive imaging in patients following non-traumatic out-of-hospital sudden cardiac arrest: A systematic review.

Bradley J Petek, Christopher L Erley, Peter J Kudenchuk, David Carlbom, Jared Strote, Medley O Gatewood, William P Shuman, Ravi S Hira, Martin L Gunn, Charles Maynard, Kelley R Branch,

<h4>Aim</h4>To review data for non-invasive imaging in the diagnosis of non-traumatic out-of-hospital cardiac arrest (OHCA).<h4>Data sources</h4>We searched MEDLINE, EMBASE, Cochrane library, and clinicaltrials.gov databases from inception to January 2017 for studies utilizing non-invasive imaging to identify potential causes of OHCA [computed tomography (CT), ultrasound including echocardiography, and magnetic resonance (MRI)].<h4>Study ... Read more >>

Resuscitation (Resuscitation)
[2019, 135:183-190]

Cited: 2 times

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CT Detectability of Small Low-Contrast Hypoattenuating Focal Lesions: Iterative Reconstructions versus Filtered Back Projection.

Achille Mileto, David A Zamora, Adam M Alessio, Carina Pereira, Jin Liu, Puneet Bhargava, Jonathan Carnell, Sophie M Cowan, Manjiri K Dighe, Martin L Gunn, Sooah Kim, Orpheus Kolokythas, Jean H Lee, Jeffrey H Maki, Mariam Moshiri, Ayesha Nasrullah, Ryan B O'Malley, Udo P Schmiedl, Erik V Soloff, Giuseppe V Toia, Carolyn L Wang, Kalpana M Kanal,

Purpose To investigate performance in detectability of small (≤1 cm) low-contrast hypoattenuating focal lesions by using filtered back projection (FBP) and iterative reconstruction (IR) algorithms from two major CT vendors across a range of 11 radiation exposures. Materials and Methods A low-contrast detectability phantom consisting of 21 low-contrast hypoattenuating focal ... Read more >>

Radiology (Radiology)
[2018, 289(2):443-454]

Cited: 9 times

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Understanding Why Patients No-Show: Observations of 2.9 Million Outpatient Imaging Visits Over 16 Years.

Joshua I Rosenbaum, Rebecca J Mieloszyk, Christopher S Hall, Daniel S Hippe, Martin L Gunn, Puneet Bhargava,

PURPOSE:To understand why patients "no-show" for imaging appointments, and to provide new insights for improving resource utilization. MATERIALS AND METHODS:We conducted a retrospective analysis of nearly 2.9 million outpatient examinations in our radiology information system from 2000 to 2015 at our multihospital academic institution. No-show visits were identified by the ... Read more >>

J Am Coll Radiol (Journal of the American College of Radiology : JACR)
[2018, 15(7):944-950]

Cited: 5 times

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Pericardial rupture and cardiac herniation in blunt trauma.

Nupur Verma, Jeffery D Robinson, Martin L Gunn,

Pericardial rupture in blunt trauma is rarely seen on computed tomography (CT) imaging due to its high initial mortality. We report a case of a 53-year-old man who presented to the Emergency Department in hemodynamic shock after intentional fall from height. Chest radiograph, which was taken in the trauma bay ... Read more >>

Radiol Case Rep (Radiology case reports)
[2018, 13(3):573-575]

Cited: 3 times

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A review of split-bolus single-pass CT in the assessment of trauma patients.

Cassandra Jeavons, Craig Hacking, Ludo F Beenen, Martin L Gunn,

<h4>Purpose</h4>The purpose of this study was to review and compare the image quality and radiation dose of split-bolus single-pass computed tomography(CT) in the assessment of trauma patients in comparison to standard multi-phase CT techniques.<h4>Methods</h4>An online electronic database was searched using the MESH terms "split-bolus," "dual phase," and "single pass." Inclusion ... Read more >>

Emerg Radiol (Emergency radiology)
[2018, 25(4):367-374]

Cited: 4 times

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Imaging of Acetabular Fractures: A Phantom Study Comparing Radiation Dose by Radiography and Computed Tomography.

Jennifer L Favinger, David A Zamora, Kalpana M Kanal, Joel A Gross, Martin L Gunn,

Semin Roentgenol (Seminars in roentgenology)
[2019, 54(2):86-91]

Cited: 0 times

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3D true-phase polarity recovery with independent phase estimation using three-tier stacks based region growing (3D-TRIPS).

Haining Liu, Gregory J Wilson, Niranjan Balu, Jeffrey H Maki, Daniel S Hippe, Wei Wu, Hiroko Watase, Jinnan Wang, Martin L Gunn, Chun Yuan,

<h4>Objectives</h4>A postprocessing technique termed 3D true-phase polarity recovery with independent phase estimation using three-tier stacks based region growing (3D-TRIPS) was developed, which directly reconstructs phase-sensitive inversion-recovery images without acquisition of phase-reference images. The utility of this technique is demonstrated in myocardial late gadolinium enhancement (LGE) imaging.<h4>Materials and methods</h4>A data structure ... Read more >>

MAGMA (Magma (New York, N.Y.))
[2018, 31(1):87-99]

Cited: 2 times

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CT Angiography in the Emergency Department: Maximizing Contrast Enhancement and Image Quality While Minimizing Radiation Dose and Contrast Material Volume: Vascular/Interventional Radiology.

Toshimasa J Clark, Martin L Gunn,

Radiographics (Radiographics : a review publication of the Radiological Society of North America, Inc)
[2017, 37(4):1304-1305]

Cited: 0 times

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Role of CT in the Diagnosis of Nonspecific Abdominal Pain: A Multicenter Analysis.

Jonathan D Eisenberg, Andrew T Reisner, William D Binder, Atif Zaheer, Martin L Gunn, Ken F Linnau, Chad M Miller, Angela C Tramontano, Maurice S Herring, Emily C Dowling, Elkan F Halpern, Karen Donelan, G Scott Gazelle, Pari V Pandharipande,

<h4>Objective</h4>The objective of our study was to determine whether specific patient and physician factors-known before CT-are associated with a diagnosis of nonspecific abdominal pain (NSAP) after CT in the emergency department (ED).<h4>Materials and methods</h4>We analyzed data originally collected in a prospective multicenter study. In the parent study, we identified ED ... Read more >>

AJR Am J Roentgenol (AJR. American journal of roentgenology)
[2017, 208(3):570-576]

Cited: 1 time

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Extracting Follow-Up Recommendations and Associated Anatomy from Radiology Reports.

Thusitha Mabotuwana, Christopher S Hall, Sandeep Dalal, Joel Tieder, Martin L Gunn,

Adherence rates for timely imaging follow-up are usually low due to low rates of diligence by referring physicians and/or patients with following recommendations for follow-up imaging. This can lead to delayed treatment, poor patient outcomes, unnecessary testing, and legal liability. Existing follow-up recommendation detection methods are often disease- and modality-specific. ... Read more >>

Stud Health Technol Inform (Studies in health technology and informatics)
[2017, 245:1090-1094]

Cited: 6 times

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Improving MRI Scanner Utilization Using Modality Log Files.

Martin L Gunn, Jeffrey H Maki, Christopher Hall, Puneet Bhargava, Jalal B Andre, Jonathan Carnell, Thomas Amthor, Norman J Beauchamp,

J Am Coll Radiol (Journal of the American College of Radiology : JACR)
[2017, 14(6):783-786]

Cited: 2 times

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Improving Quality of Follow-Up Imaging Recommendations in Radiology.

Thusitha Mabotuwana, Christopher S Hall, Joel Tieder, Martin L Gunn,

Failure of timely follow-up imaging recommendations can result in suboptimal patient care. Evidence suggests that the use of conditional language in follow-up recommendations is associated with changes to follow-up compliance. Assuming that referring physicians prefer explicit guidance for follow-up recommendations, we develop algorithms to extract recommended modality and interval from ... Read more >>

AMIA Annu Symp Proc (AMIA ... Annual Symposium proceedings. AMIA Symposium)
[2017, 2017:1196-1204]

Cited: 1 time

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A report on the Academic Emergency Medicine 2015 consensus conference "Diagnostic imaging in the emergency department: a research agenda to optimize utilization".

Martin L Gunn, Jennifer R Marin, Angela M Mills, Suzanne T Chong, Adam T Froemming, Jamlik O Johnson, Manickam Kumaravel, Aaron D Sodickson,

In May 2015, the Academic Emergency Medicine consensus conference "Diagnostic imaging in the emergency department: a research agenda to optimize utilization" was held. The goal of the conference was to develop a high-priority research agenda regarding emergency diagnostic imaging on which to base future research. In addition to representatives from ... Read more >>

Emerg Radiol (Emergency radiology)
[2016, 23(4):383-396]

Cited: 3 times

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Call for a new classification system and treatment strategy in blunt aortic injury.

Rachel E Heneghan, Shahram Aarabi, Elina Quiroga, Martin L Gunn, Niten Singh, Benjamin W Starnes,

<h4>Objective</h4>The current Society for Vascular Surgery (SVS) classification scheme for blunt aortic injury (BAI) is descriptive but does not guide therapy. We propose a simplified classification scheme based on our robust experience with BAI that is descriptive and guides therapy.<h4>Methods</h4>Patients presenting with BAI between January 1999 and September 2014 were ... Read more >>

J Vasc Surg (Journal of vascular surgery)
[2016, 64(1):171-176]

Cited: 14 times

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