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Kaewlai R, Chomchalerm G, Tongsai S, Chatpuwaphat J, Chatkaewpaisal A, Khamman P, Thamtorawat S, Praditsuktavorn B, Maitriwong W, Matsumoto J. Predictors and pathways of in-hospital mortality in active vascular contrast extravasation detected on abdominopelvic CT. Insights Imaging 2024; 15:174. [PMID: 38992307 PMCID: PMC11239638 DOI: 10.1186/s13244-024-01748-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2024] [Accepted: 06/17/2024] [Indexed: 07/13/2024] Open
Abstract
OBJECTIVES This study aimed to identify factors influencing in-hospital mortality in adult patients with active vascular contrast extravasation (AVCE) on abdominopelvic computed tomography (CT). METHODS All consecutive patients with AVCE detected on CT between January 2019 and May 2022 were retrospectively included. Their data were compared through uni- and multivariable analyses between patients with and without in-hospital mortality. Path analysis was utilized to clarify the relationships among factors affecting mortality. RESULTS There were 272 patients (60.2 ± 19.4 years, 150 men) included, of whom 70 experienced in-hospital mortality. Multivariable analysis revealed nonsurgery, chronic kidney disease (CKD) stage 4-5 or dialysis, prolonged partial thromboplastin time (PTT), minimum AVCE length > 8 mm, and a lower rate of packed red cell (PRC) transfusion were identified as independent predictors of in-hospital mortality (p = 0.005-0.048). Path analysis demonstrated direct influences of CKD4-5 or dialysis, prolonged PTT, and minimum AVCE length on mortality (coefficients 0.525-0.616; p = 0.009 to < 0.001). PRC transfusion impacted mortality through nonsurgery (coefficient 0.798, p = 0.003) and intensive care unit (ICU) admission (coefficients 0.025, p = 0.016), leading to subsequent death. Three AVCE spaces (free, loose, and tight) defined on CT were not directly associated with in-hospital mortality. CONCLUSION In adults with AVCE on CT, AVCE size had a direct independent influence on mortality, highlighting the critical role of radiologists in detecting and characterizing this finding. Additionally, CKD4-5 or dialysis and prolonged PTT also directly influenced mortality, while the lower rate of PRC transfusion impacted mortality through nonsurgery and ICU admission. CLINICAL RELEVANCE STATEMENT In patients with active vascular contrast extravasation (AVCE) on abdominopelvic CT, larger AVCE directly increased in-hospital mortality. Radiologists' detection and characterization of this finding is crucial, along with recognizing factors like CKD4-5, dialysis, and prolonged PTT to improve patient outcomes. KEY POINTS Several factors independently predicted in-hospital mortality in patients with abdominopelvic AVCE. Extravasation length > 8 mm was the only imaging marker predictive of in-hospital mortality. Non-imaging factors correlated with in-hospital mortality, and PRC transfusion impacted mortality through nonsurgery and ICU admission pathways.
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Affiliation(s)
- Rathachai Kaewlai
- Department of Radiology, Faculty of Medicine Siriraj Hospital, Mahidol University, 2 Wanglang Rd, Bangkok Noi, Bangkok, 10700, Thailand.
| | - Gun Chomchalerm
- Department of Radiology, Faculty of Medicine Siriraj Hospital, Mahidol University, 2 Wanglang Rd, Bangkok Noi, Bangkok, 10700, Thailand
| | - Sasima Tongsai
- Department of Research, Faculty of Medicine Siriraj Hospital, Mahidol University, 2 Wanglang Rd, Bangkok Noi, Bangkok, 10700, Thailand
| | - Jitti Chatpuwaphat
- Department of Radiology, Faculty of Medicine Siriraj Hospital, Mahidol University, 2 Wanglang Rd, Bangkok Noi, Bangkok, 10700, Thailand
| | - Anchisa Chatkaewpaisal
- Department of Anatomy, Faculty of Medicine Siriraj Hospital, Mahidol University, 2 Wanglang Rd, Bangkok Noi, Bangkok, 10700, Thailand
| | - Pramuk Khamman
- Department of Anatomy, Faculty of Medicine Siriraj Hospital, Mahidol University, 2 Wanglang Rd, Bangkok Noi, Bangkok, 10700, Thailand
| | - Somrach Thamtorawat
- Department of Radiology, Faculty of Medicine Siriraj Hospital, Mahidol University, 2 Wanglang Rd, Bangkok Noi, Bangkok, 10700, Thailand
| | - Banjerd Praditsuktavorn
- Department of Surgery, Faculty of Medicine Siriraj Hospital, Mahidol University, 2 Wanglang Rd, Bangkok Noi, Bangkok, 10700, Thailand
| | - Worapat Maitriwong
- Department of Radiology, Faculty of Medicine Siriraj Hospital, Mahidol University, 2 Wanglang Rd, Bangkok Noi, Bangkok, 10700, Thailand
| | - Junichi Matsumoto
- Department of Emergency and Critical Care Medicine, St. Marianna University School of Medicine, Kawasaki, Kanagawa, Japan
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CT of acute abdominopelvic hemorrhage: protocols, pearls, and pitfalls. Abdom Radiol (NY) 2022; 47:475-484. [PMID: 34731281 DOI: 10.1007/s00261-021-03336-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Revised: 10/19/2021] [Accepted: 10/22/2021] [Indexed: 10/19/2022]
Abstract
Abdominal and pelvic hemorrhage may be secondary to a number of causes and is often a medical emergency. Patient presentation ranges from obvious trauma with evidence of hemodynamic instability to vague symptoms. CT has become the imaging modality of choice for identifying abdominopelvic hemorrhage. Recognizing acute hemorrhage as well as identifying its location and severity are key to expediting management. In the Emergency Department, ultrasound often used in the initial evaluation of trauma patients, but is not sensitive for subtle bleeds or injuries. CT is the best first-line imaging tool to identify abdominal hemorrhage and, compared with angiography, has been shown to be superior in detecting intra-abdominal bleeding, especially when the bleeding rate is low. Depending on location and etiology, abdominopelvic hemorrhage may have a characteristic appearance, such as the "sentinel clot" sign associated with blunt trauma to the solid organs or the "triangle sign" of a mesenteric bleed. The following pictorial essay reviews CT technique, study interpretation, and interpretative pearls and pitfalls in the recognition of acute abdominopelvic hemorrhage.
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Lee JSZ, Hall J, Sutherland T. Complications of renal interventions: a pictorial review of CT findings. Insights Imaging 2021; 12:102. [PMID: 34275011 PMCID: PMC8286918 DOI: 10.1186/s13244-021-01048-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2021] [Accepted: 06/08/2021] [Indexed: 11/10/2022] Open
Abstract
A number of potential vascular and non-vascular complications can arise from surgical, extracorporeal shock wave lithotripsy, radiotherapy and radiological renal interventions, including percutaneous image-guided biopsy and drainage. Computed tomography scan is usually one of the first and most important diagnostic imaging examinations requested when a potential complication is suspected. There are a wide range of common and uncommon potential complications from renal interventions. An understanding of underlying risk factors is important to reduce potential complications from renal intervention. Radiologists play a crucial role in recognising and diagnosing post-renal intervention complications on computed tomography scans, which could significantly improve the patient’s prognosis.
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Affiliation(s)
- Jean S Z Lee
- Medical Imaging Department, St Vincent's Hospital Melbourne, 41 Victoria Parade, Fitzroy, VIC, 3065, Australia
| | - Jonathan Hall
- Medical Imaging Department, St Vincent's Hospital Melbourne, 41 Victoria Parade, Fitzroy, VIC, 3065, Australia
| | - Tom Sutherland
- Medical Imaging Department, St Vincent's Hospital Melbourne, 41 Victoria Parade, Fitzroy, VIC, 3065, Australia.
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Somberg Gunther M, Kanmaniraja D, Kobi M, Chernyak V. MRI of Acute Gynecologic Conditions. J Magn Reson Imaging 2019; 51:1291-1309. [PMID: 31833165 DOI: 10.1002/jmri.27002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2019] [Revised: 10/30/2019] [Accepted: 10/31/2019] [Indexed: 11/08/2022] Open
Abstract
Although usually not a first-line imaging modality in the setting of acute pelvic pain, magnetic resonance imaging (MRI) is able to depict and characterize a wide range gynecologic diagnoses with high accuracy. Lack of ionizing radiation renders MRI particularly useful for assessment of pregnant women and children. Furthermore, inherent high soft-tissue resolution of MRI allows accurate diagnosis without intravenous contrast use, which is advantageous for patients with renal insufficiency and pregnant patients. Familiarity with the typical MRI appearance of various acute gynecologic conditions helps establish the correct diagnosis. This article reviews the common MRI findings of acute gynecologic processes, in both pregnant and nonpregnant patients. Level of Evidence: 3 Technical Efficacy Stage: 3 J. Magn. Reson. Imaging 2020;51:1291-1309.
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Affiliation(s)
| | | | - Mariya Kobi
- Department of Radiology, Montefiore Medical Center, Bronx, New York, USA
| | - Victoria Chernyak
- Department of Radiology, Montefiore Medical Center, Bronx, New York, USA
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Keihani S, Putbrese BE, Rogers DM, Zhang C, Nirula R, Luo-Owen X, Mukherjee K, Morris BJ, Majercik S, Piotrowski J, Dodgion CM, Schwartz I, Elliott SP, DeSoucy ES, Zakaluzny S, Sherwood BG, Erickson BA, Baradaran N, Breyer BN, Fick CN, Smith BP, Okafor BU, Askari R, Miller B, Santucci RA, Carrick MM, Kocik JF, Hewitt T, Burks FN, Heilbrun ME, Myers JB. The associations between initial radiographic findings and interventions for renal hemorrhage after high-grade renal trauma: Results from the Multi-Institutional Genitourinary Trauma Study. J Trauma Acute Care Surg 2019; 86:974-982. [PMID: 31124895 DOI: 10.1097/ta.0000000000002254] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
BACKGROUND Indications for intervention after high-grade renal trauma (HGRT) remain poorly defined. Certain radiographic findings can be used to guide the management of HGRT. We aimed to assess the associations between initial radiographic findings and interventions for hemorrhage after HGRT and to determine hematoma and laceration sizes predicting interventions. METHODS The Genitourinary Trauma Study is a multicenter study including HGRT patients from 14 Level I trauma centers from 2014 to 2017. Admission computed tomography scans were categorized based on multiple variables, including vascular contrast extravasation (VCE), hematoma rim distance (HRD), and size of the deepest laceration. Renal bleeding interventions included angioembolization, surgical packing, renorrhaphy, partial nephrectomy, and nephrectomy. Mixed-effect Poisson regression was used to assess the associations. Receiver operating characteristic analysis was used to define optimal cutoffs for HRD and laceration size. RESULTS In the 326 patients, injury mechanism was blunt in 81%. Forty-seven (14%) patients underwent 51 bleeding interventions, including 19 renal angioembolizations, 16 nephrectomies, and 16 other procedures. In univariable analysis, presence of VCE was associated with a 5.9-fold increase in risk of interventions, and each centimeter increase in HRD was associated with 30% increase in risk of bleeding interventions. An HRD of 3.5 cm or greater and renal laceration depth of 2.5 cm or greater were most predictive of interventions. In multivariable models, VCE and HRD were significantly associated with bleeding interventions. CONCLUSION Our findings support the importance of certain radiographic findings in prediction of bleeding interventions after HGRT. These factors can be used as adjuncts to renal injury grading to guide clinical decision making. LEVEL OF EVIDENCE Prognostic and Epidemiological Study, Level III and Therapeutic/Care Management, Level IV.
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Affiliation(s)
- Sorena Keihani
- From the Division of Urology, Department of Surgery (S.K., J.B.M.), Department of Radiology (B.E.P., D.M.R.), Division of Epidemiology, Department of Internal Medicine (C.Z.), Department of Surgery (R.N.), University of Utah, Salt Lake City, Utah; Division of Acute Care Surgery (X. L-O, K.M), Loma Linda University Medical Center, Loma Linda, California; Division of Trauma and Surgical Critical Care (B.J.M., S.M), Intermountain Medical Center, Murray, Utah; Department of Urology (J.P.), Department of Surgery (C.M.D.), University of Wisconsin, Milwaukee, Wisconsin; Department of Urology (I.S., S.P.E.), Hennepin County Medical Center, University of Minnesota, Minneapolis, Minnesota; Department of Surgery (E.S.D.); Division of Trauma, Acute Care Surgery, and Surgical Critical Care, Department of Surgery (S.Z.), University of California Davis Medical Center, Sacramento, California; Department of Urology (B.G.S., BA.E), University of Iowa, Iowa City, Iowa; Department of Urology (N.B., B.N.B.), University of California-San Francisco, San Francisco, California; Division of Trauma and Surgical Critical Care (C.N.F., B.P.S), Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania; Division of Trauma, Department of Surgery (B.U.O., R.A.), Brigham and Women's Hospital, Boston, Massachusetts; Department of Urology (B.M., R.A.S), Detroit Medical Center, Detroit, Michigan; Medical City Plano (M.M.C.), Plano; Department of Surgery (J.F.K.), East Texas Medical Center, Tyler, Texas; Department of Urology (T.H., F.N.B.), Oakland University William Beaumont School of Medicine, Royal Oak, Michigan; Department of Radiology and Imaging Sciences (M.E.H.), Emory University Hospital, Atlanta, Georgia
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Lee CM, Jang JK, Shin JH, Song SY, Kang BK. Role of computed tomography angiography for acute gastrointestinal bleeding. INTERNATIONAL JOURNAL OF GASTROINTESTINAL INTERVENTION 2018. [DOI: 10.18528/gii180027] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Affiliation(s)
- Chul-min Lee
- Department of Radiology, Armed Forces Capital Hospital, Seongnam, Korea
| | - Jong Keon Jang
- Department of Radiology and Research Institute of Radiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Ji Hoon Shin
- Department of Radiology and Research Institute of Radiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Soon-Young Song
- Department of Radiology, Hanyang University Medical Center, Hanyang University College of Medicine, Seoul, Korea
| | - Bo-kyeong Kang
- Department of Radiology, Hanyang University Medical Center, Hanyang University College of Medicine, Seoul, Korea
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Artigas JM, Martí M, Soto JA, Esteban H, Pinilla I, Guillén E. Multidetector CT angiography for acute gastrointestinal bleeding: technique and findings. Radiographics 2014; 33:1453-70. [PMID: 24025935 DOI: 10.1148/rg.335125072] [Citation(s) in RCA: 89] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Acute gastrointestinal bleeding is a common reason for emergency department admissions and an important cause of morbidity and mortality. Factors that complicate its clinical management include patient debility due to comorbidities; intermittence of hemorrhage; and multiple sites of simultaneous bleeding. Its management, therefore, must be multidisciplinary and include emergency physicians, gastroenterologists, and surgeons, as well as radiologists for diagnostic imaging and interventional therapy. Upper gastrointestinal tract bleeding is usually managed endoscopically, with radiologic intervention reserved as an alternative to be used if endoscopic therapy fails. Endoscopy is often less successful in the management of acute lower gastrointestinal tract bleeding, where colonoscopy may be more effective. The merits of performing bowel cleansing before colonoscopy in such cases might be offset by the resultant increase in response time and should be weighed carefully against the deficits in visualization and diagnostic accuracy that would result from performing colonoscopy without bowel preparation. In recent years, multidetector computed tomographic (CT) angiography has gained acceptance as a first-line option for the diagnosis and management of lower gastrointestinal tract bleeding. In selected cases of upper gastrointestinal tract bleeding, CT angiography also provides accurate information about the presence or absence of active bleeding, its source, and its cause. This information helps shorten the total diagnostic time and minimizes or eliminates the need for more expensive and more invasive procedures.
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Affiliation(s)
- José M Artigas
- Departments of Radiology, Miguel Servet University Hospital, Paseo de Isabel La Católica 1-3, 50009 Zaragoza, Spain
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Tonolini M, Ippolito S, Patella F, Petullà M, Bianco R. Hemorrhagic complications of anticoagulant therapy: role of multidetector computed tomography and spectrum of imaging findings from head to toe. Curr Probl Diagn Radiol 2013; 41:233-47. [PMID: 23009773 DOI: 10.1067/j.cpradiol.2012.05.001] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Highly effective in preventing and treating thromboembolic conditions in acute and chronic settings, anticoagulant therapy is associated with a non-negligible risk of hemorrhagic complications with a considerable clinical impact. Advanced age and comorbidities further increase the risk of bleeding during heparinization, treatment with low-molecular-weight heparins or long-term oral warfarin anticoagulation. Multidetector computed tomography represents the mainstay diagnostic technique to image-suspected hemorrhages in anticoagulated patients, as it can quickly assess presence, site, and extent of hemorrhage, identify active bleeding, and possible underlying diseases. Cross-sectional imaging appearances of the wide spectrum of anticoagulant therapy-related bleeding complications are hereby presented, including peripheral and thoracic-abdominal wall muscular hematomas, intrathoracic, abdominal, retroperitoneal genitourinary, gastrointestinal, and brain hemorrhages. Prompt recognition and comprehensive diagnostic assessment with multidetector computed tomography allow clinicians to correctly choose treatment modification or withdrawal, surgery, or interventional procedures as needed, with the aim to reduce the associated morbidity and mortality.
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Affiliation(s)
- Massimo Tonolini
- Department of Radiology, Luigi Sacco University Hospital, Milan, Italy.
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Sethi V, Philips S, Fraser-Hill M. Lines and circles: pictorial review of cross-sectional imaging of active bleeding and pseudoaneurysm in the abdomen and pelvis. Can Assoc Radiol J 2012; 64:36-45. [PMID: 22406135 DOI: 10.1016/j.carj.2011.10.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2011] [Revised: 09/07/2011] [Accepted: 10/04/2011] [Indexed: 11/16/2022] Open
Affiliation(s)
- Vineeta Sethi
- Department of Medical Imaging, The Ottawa Hospital, The University of Ottawa, Ottawa, Ontario, Canada
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11
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Active extravasation of the abdomen and pelvis in trauma using 64MDCT. Emerg Radiol 2009; 16:375-82. [DOI: 10.1007/s10140-009-0802-1] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2008] [Accepted: 02/17/2009] [Indexed: 10/21/2022]
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Jaeckle T, Stuber G, Hoffmann MHK, Freund W, Schmitz BL, Aschoff AJ. Acute gastrointestinal bleeding: value of MDCT. ACTA ACUST UNITED AC 2008; 33:285-93. [PMID: 17639378 DOI: 10.1007/s00261-007-9263-8] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Contrast-enhanced multidetector row helical computed tomography (MDCT) scanning is establishing itself as a rapid, noninvasive, and accurate diagnostic method in suspected acute gastrointestinal bleeding. Active bleeding can be depicted as an area of focal high attenuation within the bowel lumen on arterial phase MDCT images. New MDCT technologies facilitate three-dimensional image reconstruction, and higher temporal resolution is available with new MDCT scanner generations. This allows for the acquisition of arterial- and portal-venous phase images of the whole abdomen, revealing potential bleeding sources and simultaneously depict morphological changes in the abdomen, such as intestinal tumors. This article gives an overview of available diagnostic modalities in assessing gastrointestinal (GI) tract hemorrhage, with a special emphasis on new MDCT technology.
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Affiliation(s)
- T Jaeckle
- Diagnostic and Interventional Radiology, University Hospitals of Ulm, Ulm, Germany.
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Jaeckle T, Stuber G, Hoffmann MHK, Jeltsch M, Schmitz BL, Aschoff AJ. Detection and localization of acute upper and lower gastrointestinal (GI) bleeding with arterial phase multi-detector row helical CT. Eur Radiol 2008; 18:1406-13. [PMID: 18351347 DOI: 10.1007/s00330-008-0907-z] [Citation(s) in RCA: 80] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2007] [Revised: 01/15/2008] [Accepted: 02/13/2008] [Indexed: 12/14/2022]
Abstract
The purpose of this study was to evaluate the accuracy of multi-detector row helical CT (MDCT) for detection and localization of acute upper and lower gastrointestinal (GI) hemorrhage or intraperitoneal bleeding. Thirty-six consecutive patients with clinical signs of acute bleeding underwent biphasic (16- or 40-channel) MDCT. MDCT findings were correlated with endoscopy, angiography or surgery. Among the 36 patients evaluated, 26 were examined for GI bleeding and 10 for intraperitoneal hemorrhage. Confirmed sites of GI bleeding were the stomach (n = 5), duodenum (n = 5), small bowel (n = 6), large bowel (n = 8) and rectum (n = 2). The correct site of bleeding was identifiable on MDCT in 24/26 patients with GI bleeding. In 20 of these 24 patients, active CM extravasation was apparent during the exam. Among the ten patients with intraperitoneal hemorrhage, MDCT correctly identified the bleeding source in nine patients. Our findings suggest that fast and accurate localization of acute gastrointestinal and intraperitoneal bleeding is achievable on MDCT.
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Affiliation(s)
- T Jaeckle
- Diagnostic and Interventional Radiology, University Hospital of Ulm, Steinhövelstr. 9, 89075 Ulm, Germany.
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Relative Threshold of Detection of Active Arterial Bleeding: In Vitro Comparison of MDCT and Digital Subtraction Angiography. AJR Am J Roentgenol 2007; 189:W238-46. [DOI: 10.2214/ajr.07.2290] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Anderson SW, Lucey BC, Rhea JT, Soto JA. 64 MDCT in multiple trauma patients: imaging manifestations and clinical implications of active extravasation. Emerg Radiol 2007; 14:151-9. [PMID: 17483969 DOI: 10.1007/s10140-007-0600-6] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2006] [Accepted: 02/27/2007] [Indexed: 10/23/2022]
Abstract
The finding of active hemorrhage on computed tomography (CT) in trauma patients has been shown to have significant clinical implications and has been incorporated into numerous CT grading schema. As CT technology has advanced, the sensitivity for detection of active hemorrhage in the trauma population has significantly improved. Currently, with the improved spatial and temporal resolution afforded by 64 multidetector computed tomography (64 MDCT) technology, the clinical implications of the CT findings of active extravasation may need to be reconsidered. This article illustrates the various imaging manifestations of active extravasation throughout the body using 64 MDCT. Additionally, protocol issues specific to the findings of active hemorrhage using 64 MDCT are detailed, including novel interpretation techniques, which offer aid in detecting and characterizing hemorrhage. Finally, the clinical implication of active extravasation using this new technology is discussed. Although more sensitive to the detection of small hemorrhagic foci and with clinical implications highly dependent upon location, active bleeding remains as a salient finding that affects subsequent clinical management of trauma patients.
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Affiliation(s)
- Stephan W Anderson
- Department of Radiology, Boston University Medical Center, 88 East Newton Street, 2nd Floor, Boston, MA 02215, USA.
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Federle MP, Pan KT, Pealer KM. CT Criteria for Differentiating Abdominal Hemorrhage: Anticoagulation or Aortic Aneurysm Rupture? AJR Am J Roentgenol 2007; 188:1324-30. [PMID: 17449778 DOI: 10.2214/ajr.05.1911] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
OBJECTIVE The purpose of our study was to test the hypothesis that CT criteria would allow accurate diagnosis of the specific cause of abdominal hemorrhage in patients with coagulopathy or abdominal aortic aneurysm. CONCLUSION Attention to specific CT criteria allows accurate diagnosis of the specific cause of spontaneous abdominal hemorrhage even in patients who have both coagulopathy and an abdominal aortic aneurysm.
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Affiliation(s)
- Michael P Federle
- Department of Radiology, University of Pittsburgh Medical Center, 200 Lothrop St., Room 3950, Pittsburgh, PA 15213, USA.
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Ibukuro K, Oishi A, Tanaka R, Fukuda H, Abe S. Signal Flare Phenomenon as Active Bleeding in Retroperitoneal Hematoma With Hematocrit Effect on Dynamic CT Scan. J Comput Assist Tomogr 2006; 30:787-90. [PMID: 16954929 DOI: 10.1097/01.rct.0000224632.32821.e6] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
The contrast medium was observed as a thin line indicating active bleeding in the cellular component and stayed at the boundary between the plasma and cellular components in liquefied hematomas. We could also reproduce the same phenomenon in an experimental study using human blood. The characteristic dynamic motion of the contrast medium demonstrated in the liquefied hematoma, which we have called the "signal flare" phenomenon, is a significant sign indicating active bleeding.
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Affiliation(s)
- Kenji Ibukuro
- Department of Radiology, Mitsui Memorial Hospital, 1-Kanda Izumicho Chiyoda-ku, Tokyo, Japan.
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Lemos AA, Sternberg JM, Tognini L, Lauro R, Biondetti PR. Nontraumatic abdominal hemorrhage: MDCTA. ACTA ACUST UNITED AC 2005; 31:17-24. [PMID: 16333705 DOI: 10.1007/s00261-005-0357-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- A A Lemos
- Department of Radiology, Policlinico Ospedale Maggiore IRCCS, Via F. Sforza 35, Milan, 20122, Italy.
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Abstract
Trauma is a major cause of death and disability and renal injuries occur in up to 10% of patients with significant blunt abdominal trauma. Patients with penetrating trauma and hematuria, blunt trauma with shock and hematuria, or gross hematuria warrant imaging of the urinary tract specifically and CT is the preferred modality. If there is significant perinephric fluid, especially medially, or deep laceration, delayed images should be obtained to evaluate for urinary extravasation. Most renal injuries are minor, including contusions, subcapsular and perinephric hematoma, and superficial lacerations. More significant injuries include deep lacerations, shattered kidney, active hemorrhage, infarctions, and vascular pedicle and UPJ injuries. These injuries are more likely to need surgery or have delayed complications but may still often be managed conservatively. The presence of urinary extravasation and large devitalized areas of renal parenchyma, especially with associated injuries of intraperitoneal organs, is particularly prone to complication and usually requires surgery. Active hemorrhage should be recognized because it often indicates a need for urgent surgery or embolization to prevent exsanguination.
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Affiliation(s)
- J Kevin Smith
- Department of Diagnostic Radiology, University of Alabama at Birmingham Health System, 619 South 19th Street, Birmingham, AL 35233, USA.
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Affiliation(s)
- Reuven Rabinovici
- Section of Trauma and Surgical Critical Care, Yale University School of Medicine, Yale-New Haven Hospital, New Haven, CT, USA
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Wong YC, Wang LJ, See LC, Fang JF, Ng CJ, Chen CJ. Contrast material extravasation on contrast-enhanced helical computed tomographic scan of blunt abdominal trauma: its significance on the choice, time, and outcome of treatment. THE JOURNAL OF TRAUMA 2003; 54:164-70. [PMID: 12544913 DOI: 10.1097/00005373-200301000-00021] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND Contrast-enhanced helical computed tomographic (CT) scan of blunt abdominal trauma is valuable for detecting contrast material extravasation (CME). The aims of this study were to determine its significance and investigate factors associated with the choice, time, and outcome of management. METHODS CT scans of 32 consecutive trauma patients who had CME were reviewed for the sources of CME, types of CME, flat inferior vena cava, and multiple abdominal injuries. The medical records were reviewed for demographics, systolic blood pressure, Injury Severity Score (ISS), choice of management, time interval between CT scan and intervention, and outcome of intervention. RESULTS Systolic blood pressure < 100 mm Hg was the most important factor (p = 0.0064) that failed observational therapy. When proceeding to intervention treatment, patients with a flat inferior vena cava (1.6 +/- 1.1 hours) had a significantly shorter time interval between CT scan examination and intervention when compared with those with a normal cava (10.9 +/- 16.0 hours) ( p= 0.0124). The mortality rate after intervention treatment was 18.8%. High ISS, uncontained CME in the extraperitoneum, and multiple abdominal injuries were important risk factors. After adjusted for ISS and multiple abdominal injuries, the risk of dying from extraperitoneal CME remained significant when compared with intraperitoneal CME (adjusted odds ratio, 82.26; 95% confidence interval, 1.06-6,363.17). CONCLUSION Termination of observational therapy was appropriate for trauma patients who had CME and systolic blood pressure < 100 mm Hg. The coexistence of a flat inferior vena cava and CME was associated with early intervention treatment. Despite early intervention, the mortality rate was 18.8%. High ISS and multiple abdominal injuries were important factors, but the risk of dying from uncontained extraperitoneal CME was 82 times the risk of dying from intraperitoneal CME.
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Affiliation(s)
- Yon-Cheong Wong
- Second Division, Department of Radiology, Chang Gung Memorial Hospital, Chang Gung University, 5, Fu-Hsing Street, Gueishan, Taoyuan 33333, Taiwan.
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22
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Willmann JK, Roos JE, Platz A, Pfammatter T, Hilfiker PR, Marincek B, Weishaupt D. Multidetector CT: detection of active hemorrhage in patients with blunt abdominal trauma. AJR Am J Roentgenol 2002; 179:437-44. [PMID: 12130447 DOI: 10.2214/ajr.179.2.1790437] [Citation(s) in RCA: 156] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
OBJECTIVE The aim of this study was to determine the imaging findings and the prevalence of active hemorrhage on contrast-enhanced multidetector CT in patients with blunt abdominal trauma. MATERIALS AND METHODS Contrast-enhanced multidetector CT images of 165 patients with blunt abdominal trauma were reviewed for the presence of extravasated contrast agent, a finding that represents active hemorrhage. The site and appearance of the hemorrhage were noted on multidetector CT images. These findings were compared with surgical and angiographic results or with clinical follow-up. RESULTS On multidetector CT images, active hemorrhage was detected in 22 (13%) of 165 patients with a total of 24 bleeding sites (14 intraperitoneal sites and 10 extraperitoneal sites). Active hemorrhage was visible most frequently as a jet of extravasated contrast agent (10/24 bleeding sites [42%]). Diffuse or focal extravasation was less frequently seen (nine [37%] and five [21%] bleeding sites, respectively). CT attenuation values measured in the aorta (mean, 199 H) were significantly higher than those measured in extravasated contrast material (mean, 155 H) (p < 0.001). Sixteen (73%) of 22 patients with active bleeding on multidetector CT images underwent immediate surgical or angiographic intervention. One patient received angiographic therapy 10 hr after undergoing multidetector CT, and five patients died between 1 and 3 hr after multidetector CT examination. CONCLUSION Active hemorrhage in patients after blunt abdominal trauma is most frequently visible as a jet of extravasated contrast agent on multidetector CT. When extravasation is detected, immediate surgical or angiographic therapy is required.
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Affiliation(s)
- Jürgen K Willmann
- Institute of Diagnostic Radiology, University Hospital Zurich, Rämistr. 100, 8091 Zurich, Switzerland
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23
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Abstract
Helical computed tomography (CT) allows rapid, cost-effective evaluation of patients with acute abdominal pain. Tailoring the examination to the working clinical diagnosis by optimizing constituent factors (eg, timing of acquisition, contrast material used, means and rate of contrast material administration, collimation, pitch) can markedly improve diagnostic accuracy. Rapid (>/=3 mL/sec) intravenous injection of contrast material is required for optimal assessment of acute pancreatitis, ischemic bowel, aortic aneurysm, and aortic dissection. Narrow collimation and small reconstruction intervals can help detect calculi in the biliary system and genitourinary tract. Tailored helical CT in patients with acute pyelonephritis usually involves several acquisitions through the kidneys during various phases of renal enhancement. In patients with suspected renal infarction, CT protocol must include an acquisition during the corticomedullary phase. Helical CT with 5-mm collimation through the lower abdomen and pelvis is used to evaluate patients with suspected diverticulitis. Use of both oral and intravenous contrast material can help localize small bowel perforation and characterize related complications. Tailored helical CT for assessment of abdominal hemorrhage consists of initial unenhanced CT followed by optional contrast material-enhanced CT. Clear communication between the radiologist, the patient, and the referring physician is essential for narrowing the differential diagnosis into a working diagnosis prior to helical CT.
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Affiliation(s)
- B A Urban
- Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins Medical Institutions, 600 N Wolfe St, Baltimore, MD 21287, USA.
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24
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Gore RM, Miller FH, Pereles FS, Yaghmai V, Berlin JW. Helical CT in the evaluation of the acute abdomen. AJR Am J Roentgenol 2000; 174:901-13. [PMID: 10749221 DOI: 10.2214/ajr.174.4.1740901] [Citation(s) in RCA: 73] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- R M Gore
- Department of Radiology, Evanston Hospital-Northwestern University, IL 60201, USA
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25
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Krestan CR, Pokieser P, Wenzl E, Leitha T. Localization of gastrointestinal bleeding with contrast-enhanced helical CT. AJR Am J Roentgenol 2000; 174:265-6. [PMID: 10628499 DOI: 10.2214/ajr.174.1.1740265] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Affiliation(s)
- C R Krestan
- General Hospital of Vienna, University of Vienna, Austria
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26
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Abstract
CT performed without oral or intravenous contrast is the initial imaging study of choice in many situations for the detection of hemorrhage anywhere in the abdomen and pelvis. The presence or absence of hemorrhage can be determined rapidly, and the amount and precise location of hemorrhage can also be evaluated. This article reviews the appearances and the common and unusual etiologies of abdominal and pelvic hemorrhage on unenhanced CT. The role of intravenous contrast-enhanced CT in patients with known or suspected abdominal and pelvic hemorrhage is also examined.
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Affiliation(s)
- D S Katz
- Department of Radiology, Winthrop-University Hospital, Mineola, NY 11501, USA
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