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Chamberlin JH, Ogbonna A, Abrol S, Maisuria D, Miller E, McGuire A, Knight H, O'Doherty J, Baruah D, Schoepf UJ, Munden RF, Kabakus IM. Enhancing diagnostic precision for acute chest syndrome in sickle cell disease: insights from dual-energy CT lung perfusion mapping. Emerg Radiol 2024; 31:73-82. [PMID: 38224366 DOI: 10.1007/s10140-024-02200-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2023] [Accepted: 01/05/2024] [Indexed: 01/16/2024]
Abstract
PURPOSE Acute chest syndrome (ACS) is secondary to occlusion of the pulmonary vasculature and a potentially life-threatening complication of sickle cell disease (SCD). Dual-energy CT (DECT) iodine perfusion map reconstructions can provide a method to visualize and quantify the extent of pulmonary microthrombi. METHODS A total of 102 patients with sickle cell disease who underwent DECT CTPA with perfusion were retrospectively identified. The presence or absence of airspace opacities, segmental perfusion defects, and acute or chronic pulmonary emboli was noted. The number of segmental perfusion defects between patients with and without acute chest syndrome was compared. Sub-analyses were performed to investigate robustness. RESULTS Of the 102 patients, 68 were clinically determined to not have ACS and 34 were determined to have ACS by clinical criteria. Of the patients with ACS, 82.4% were found to have perfusion defects with a median of 2 perfusion defects per patient. The presence of any or new perfusion defects was significantly associated with the diagnosis of ACS (P = 0.005 and < 0.001, respectively). Excluding patients with pulmonary embolism, 79% of patients with ACS had old or new perfusion defects, and the specificity for new perfusion defects was 87%, higher than consolidation/ground glass opacities (80%). CONCLUSION DECT iodine map has the capability to depict microthrombi as perfusion defects. The presence of segmental perfusion defects on dual-energy CT maps was found to be associated with ACS with potential for improved specificity and reclassification.
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Affiliation(s)
- Jordan H Chamberlin
- Department of Radiology and Radiologic Science, Medical University of South Carolina, 25 Courtenay Dr, Charleston, SC, USA
| | - Alexis Ogbonna
- Department of Radiology and Radiologic Science, Medical University of South Carolina, 25 Courtenay Dr, Charleston, SC, USA
| | - Sameer Abrol
- Department of Radiology and Radiologic Science, Medical University of South Carolina, 25 Courtenay Dr, Charleston, SC, USA
| | - Dhruw Maisuria
- Department of Radiology and Radiologic Science, Medical University of South Carolina, 25 Courtenay Dr, Charleston, SC, USA
| | - Emily Miller
- Department of Radiology and Radiologic Science, Medical University of South Carolina, 25 Courtenay Dr, Charleston, SC, USA
| | - Aaron McGuire
- Department of Radiology and Radiologic Science, Medical University of South Carolina, 25 Courtenay Dr, Charleston, SC, USA
| | - Heather Knight
- Department of Radiology and Radiologic Science, Medical University of South Carolina, 25 Courtenay Dr, Charleston, SC, USA
| | - Jim O'Doherty
- Department of Radiology and Radiologic Science, Medical University of South Carolina, 25 Courtenay Dr, Charleston, SC, USA
- Siemens Medical Solutions, Malvern, PA, USA
| | - Dhiraj Baruah
- Department of Radiology and Radiologic Science, Medical University of South Carolina, 25 Courtenay Dr, Charleston, SC, USA
| | - U Joseph Schoepf
- Department of Radiology and Radiologic Science, Medical University of South Carolina, 25 Courtenay Dr, Charleston, SC, USA
| | - Reginald F Munden
- Department of Radiology and Radiologic Science, Medical University of South Carolina, 25 Courtenay Dr, Charleston, SC, USA
| | - Ismail M Kabakus
- Department of Radiology and Radiologic Science, Medical University of South Carolina, 25 Courtenay Dr, Charleston, SC, USA.
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Solomon N, Segaran N, Badawy M, Elsayes KM, Pellerito JS, Katz DS, Moshiri M, Revzin MV. Manifestations of Sickle Cell Disorder at Abdominal and Pelvic Imaging. Radiographics 2022; 42:1103-1122. [PMID: 35559660 DOI: 10.1148/rg.210154] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Sickle cell disorder (SCD) refers to a spectrum of hematologic disorders that cause a characteristic clinical syndrome affecting the entire body. It is the most prevalent monogenetic hemoglobinopathy worldwide, with a wide range of focal and systemic expressions. Hemoglobin gene mutation leads to the formation of abnormal sickle-shaped red blood cells, which cause vascular occlusion and result in tissue and organ ischemia and infarction. Recurrent episodes of acute illness lead to progressive multisystem organ damage and dysfunction. Vaso-occlusion, hemolysis, and infection as a result of functional asplenia are at the core of the disease manifestations. Imaging plays an essential role in the diagnosis and management of SCD-related complications in the abdomen and pelvis. A thorough understanding of the key imaging findings of SCD complications involving hepatobiliary, gastrointestinal, genitourinary, and musculoskeletal systems is crucial to timely recognition and accurate diagnosis. The authors aim to familiarize the radiologist with the SCD spectrum, focusing on the detection and evaluation of manifestations that may appear at imaging of the abdomen and pelvis. The topics the authors address include (a) the pathophysiology of the disease, (b) the placement of SCD among hemoglobinopathies, (c) the clinical presentation of SCD, (d) the role of imaging in the evaluation and diagnosis of patients with SCD who present with abdominal and pelvic manifestations in addition to extraperitoneal manifestations detectable at abdominal or pelvic imaging, (e) imaging features associated with common and uncommon sequelae of SCD in abdominal and pelvic imaging studies, and (f) a brief overview of management and treatment of patients with SCD. Online supplemental material is available for this article. ©RSNA, 2022.
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Affiliation(s)
- Nadia Solomon
- From the Department of Radiology and Biomedical Imaging, 333 Cedar Street, PO Box 208042 Room TE-2, New Haven, CT 06520 (N. Solomon, M.V.R.); Stanford University, Stanford, Calif (N. Segaran); Department of Imaging Physics (M.B.) and Department of Abdominal Imaging (K.M.E.), University of Texas MD Anderson Cancer Center, Houston, Tex; Department of Radiology, Zucker School of Medicine at Hofstra/Northwell, Northwell Health System, Manhasset, N.Y. (J.S.P.); Department of Radiology, NYU Winthrop University Hospital, Mineola, N.Y. (D.S.K.); and Department of Radiology, University of Washington Medical Center, Seattle Wash. (M.M.)
| | - Nicole Segaran
- From the Department of Radiology and Biomedical Imaging, 333 Cedar Street, PO Box 208042 Room TE-2, New Haven, CT 06520 (N. Solomon, M.V.R.); Stanford University, Stanford, Calif (N. Segaran); Department of Imaging Physics (M.B.) and Department of Abdominal Imaging (K.M.E.), University of Texas MD Anderson Cancer Center, Houston, Tex; Department of Radiology, Zucker School of Medicine at Hofstra/Northwell, Northwell Health System, Manhasset, N.Y. (J.S.P.); Department of Radiology, NYU Winthrop University Hospital, Mineola, N.Y. (D.S.K.); and Department of Radiology, University of Washington Medical Center, Seattle Wash. (M.M.)
| | - Mohamed Badawy
- From the Department of Radiology and Biomedical Imaging, 333 Cedar Street, PO Box 208042 Room TE-2, New Haven, CT 06520 (N. Solomon, M.V.R.); Stanford University, Stanford, Calif (N. Segaran); Department of Imaging Physics (M.B.) and Department of Abdominal Imaging (K.M.E.), University of Texas MD Anderson Cancer Center, Houston, Tex; Department of Radiology, Zucker School of Medicine at Hofstra/Northwell, Northwell Health System, Manhasset, N.Y. (J.S.P.); Department of Radiology, NYU Winthrop University Hospital, Mineola, N.Y. (D.S.K.); and Department of Radiology, University of Washington Medical Center, Seattle Wash. (M.M.)
| | - Khaled M Elsayes
- From the Department of Radiology and Biomedical Imaging, 333 Cedar Street, PO Box 208042 Room TE-2, New Haven, CT 06520 (N. Solomon, M.V.R.); Stanford University, Stanford, Calif (N. Segaran); Department of Imaging Physics (M.B.) and Department of Abdominal Imaging (K.M.E.), University of Texas MD Anderson Cancer Center, Houston, Tex; Department of Radiology, Zucker School of Medicine at Hofstra/Northwell, Northwell Health System, Manhasset, N.Y. (J.S.P.); Department of Radiology, NYU Winthrop University Hospital, Mineola, N.Y. (D.S.K.); and Department of Radiology, University of Washington Medical Center, Seattle Wash. (M.M.)
| | - John S Pellerito
- From the Department of Radiology and Biomedical Imaging, 333 Cedar Street, PO Box 208042 Room TE-2, New Haven, CT 06520 (N. Solomon, M.V.R.); Stanford University, Stanford, Calif (N. Segaran); Department of Imaging Physics (M.B.) and Department of Abdominal Imaging (K.M.E.), University of Texas MD Anderson Cancer Center, Houston, Tex; Department of Radiology, Zucker School of Medicine at Hofstra/Northwell, Northwell Health System, Manhasset, N.Y. (J.S.P.); Department of Radiology, NYU Winthrop University Hospital, Mineola, N.Y. (D.S.K.); and Department of Radiology, University of Washington Medical Center, Seattle Wash. (M.M.)
| | - Douglas S Katz
- From the Department of Radiology and Biomedical Imaging, 333 Cedar Street, PO Box 208042 Room TE-2, New Haven, CT 06520 (N. Solomon, M.V.R.); Stanford University, Stanford, Calif (N. Segaran); Department of Imaging Physics (M.B.) and Department of Abdominal Imaging (K.M.E.), University of Texas MD Anderson Cancer Center, Houston, Tex; Department of Radiology, Zucker School of Medicine at Hofstra/Northwell, Northwell Health System, Manhasset, N.Y. (J.S.P.); Department of Radiology, NYU Winthrop University Hospital, Mineola, N.Y. (D.S.K.); and Department of Radiology, University of Washington Medical Center, Seattle Wash. (M.M.)
| | - Mariam Moshiri
- From the Department of Radiology and Biomedical Imaging, 333 Cedar Street, PO Box 208042 Room TE-2, New Haven, CT 06520 (N. Solomon, M.V.R.); Stanford University, Stanford, Calif (N. Segaran); Department of Imaging Physics (M.B.) and Department of Abdominal Imaging (K.M.E.), University of Texas MD Anderson Cancer Center, Houston, Tex; Department of Radiology, Zucker School of Medicine at Hofstra/Northwell, Northwell Health System, Manhasset, N.Y. (J.S.P.); Department of Radiology, NYU Winthrop University Hospital, Mineola, N.Y. (D.S.K.); and Department of Radiology, University of Washington Medical Center, Seattle Wash. (M.M.)
| | - Margarita V Revzin
- From the Department of Radiology and Biomedical Imaging, 333 Cedar Street, PO Box 208042 Room TE-2, New Haven, CT 06520 (N. Solomon, M.V.R.); Stanford University, Stanford, Calif (N. Segaran); Department of Imaging Physics (M.B.) and Department of Abdominal Imaging (K.M.E.), University of Texas MD Anderson Cancer Center, Houston, Tex; Department of Radiology, Zucker School of Medicine at Hofstra/Northwell, Northwell Health System, Manhasset, N.Y. (J.S.P.); Department of Radiology, NYU Winthrop University Hospital, Mineola, N.Y. (D.S.K.); and Department of Radiology, University of Washington Medical Center, Seattle Wash. (M.M.)
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