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Dehbozorgi A, Jandali B, Turner R, Rohr A, Custer B, Young K, Walter C, Clark L, Li Y, Polineni D, Mermis J. Safety of non-cuffed tunneled central venous catheters in adults with cystic fibrosis. Respir Med Res 2023; 85:101073. [PMID: 38157768 DOI: 10.1016/j.resmer.2023.101073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2023] [Revised: 11/16/2023] [Accepted: 11/20/2023] [Indexed: 01/03/2024]
Abstract
BACKGROUND Peripherally inserted central catheters (PICCs) are the most common route of intravenous (I.V.) access for treatment of cystic fibrosis (CF) pulmonary exacerbations, but repeated PICC placement can result in upper extremity peripheral venous stenosis. Once peripheral stenosis develops, a non-cuffed tunneled central venous catheter (NcTCVC) is an alternative route for IV access. While these are regularly used at some CF centers, the safety and complication rate compared to PICCs in adults with CF has not been reported. This study aims to describe the safety of NcTCVCs in adults with CF. METHODS A retrospective cohort study was performed at a CF Foundation accredited institution including adults with CF who received NcTCVCs in interventional radiology from 7/19/2007 to 3/09/2020. Complications analyzed included catheter related deep venous thrombosis (DVT), central line associated blood stream infection (CLABSI), and catheter related central venous stenosis. Complications were considered attributable if they occurred while the catheter was in place or within 30 days of catheter removal. RESULTS During the study duration, 386 NcTCVCs were placed in 60 unique patients (55 % female) with a mean of 6.4 catheters per patient. Majority of NcTCVCs placed were 4 French (61.4 %). Average duration of indwelling NcTCVC was 16.2 days. No patients demonstrated catheter attributable symptomatic DVT. The incidence of DVT, CLABSI, and central venous stenosis was 0 (0 %), 4 (1 %), and 1 (0.3 %), respectively. CONCLUSIONS Many adults with CF have required insertion of numerous PICCs for the treatment of recurrent pulmonary exacerbations. In those adults that develop PICC-associated peripheral vein stenosis precluding PICC placement, these results indicate NcTCVCs are a safe alternative.
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Affiliation(s)
- Arshan Dehbozorgi
- Department of Radiology, University of Kansas Medical Center, Kansas City, KS, United States
| | - Badr Jandali
- Division of Pulmonary, Critical Care, and Sleep Medicine, University of Kansas Medical Center, Kansas City, KS, United States
| | - Robert Turner
- University of Kansas School of Medicine, University of Kansas Medical Center, Kansas City, KS, United States
| | - Aaron Rohr
- Department of Radiology, University of Kansas Medical Center, Kansas City, KS, United States
| | - Brandon Custer
- Department of Radiology, University of Kansas Medical Center, Kansas City, KS, United States
| | - Kate Young
- Department of Radiology, University of Kansas Medical Center, Kansas City, KS, United States
| | - Carissa Walter
- Department of Radiology, University of Kansas Medical Center, Kansas City, KS, United States
| | - Lauren Clark
- Department of Radiology, University of Kansas Medical Center, Kansas City, KS, United States
| | - Yanming Li
- Department of Radiology, University of Kansas Medical Center, Kansas City, KS, United States
| | - Deepika Polineni
- Department of Pediatrics, Division of Allergy and Pulmonary Medicine, Washington University School of Medicine, United States
| | - Joel Mermis
- Division of Pulmonary, Critical Care, and Sleep Medicine, University of Kansas Medical Center, Kansas City, KS, United States.
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Richards L, Dalla S, Fitzgerald S, Walter C, Ash R, Miller K, Alli A, Rohr A. Utilizing 3D printing to assist pre-procedure planning of transjugular intrahepatic portosystemic shunt (TIPS) procedures: a pilot study. 3D Print Med 2023; 9:10. [PMID: 37052816 PMCID: PMC10099647 DOI: 10.1186/s41205-023-00176-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Accepted: 03/29/2023] [Indexed: 04/14/2023] Open
Abstract
BACKGROUND 3D (three-dimensional) printing has been adopted by the medical community in several ways, procedure planning being one example. This application of technology has been adopted by several subspecialties including interventional radiology, however the planning of transjugular intrahepatic portosystemic shunt (TIPS) placement has not yet been described. The impact of a 3D printed model on procedural measures such as procedure time, radiation exposure, intravascular contrast dosage, fluoroscopy time, and provider confidence has also not been reported. METHODS This pilot study utilized a quasi-experimental design including patients who underwent TIPS. For the control group, retrospective data was collected on patients who received a TIPS prior to Oct 1, 2020. For the experimental group, patient-specific 3D printed models were integrated in the care of patients that received TIPS between Oct 1, 2020 and April 15, 2021. Data was collected on patient demographics and procedural measures. The interventionalists were surveyed on their confidence level and model usage following each procedure in the experimental group. RESULTS 3D printed models were created for six TIPS. Procedure time (p = 0.93), fluoroscopy time (p = 0.26), and intravascular contrast dosage (p = 0.75) did not have significant difference between groups. Mean radiation exposure was 808.8 mGy in the group with a model compared to 1731.7 mGy without, however this was also not statistically significant (p = 0.09). Out of 11 survey responses from interventionists, 10 reported "increased" or "significantly increased" confidence after reviewing the 3D printed model and all responded that the models were a valuable tool for trainees. CONCLUSIONS 3D printed models of patient anatomy can consistently be made using consumer-level, desktop 3D printing technology. This study was not adequately powered to measure the impact that including 3D printed models in the planning of TIPS procedures may have on procedural measures. The majority of interventionists reported that patient-specific models were valuable tools for teaching trainees and that confidence levels increased as a result of model inclusion in procedure planning.
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Affiliation(s)
- Lucas Richards
- University of Kansas School of Medicine, 3901 Rainbow Boulevard, 66160, Kansas City, KS, USA.
| | - Shiv Dalla
- University of Kansas School of Medicine, 3901 Rainbow Boulevard, 66160, Kansas City, KS, USA
| | - Sharon Fitzgerald
- Department of Population Health, University of Kansas Medical Center, 3901 Rainbow Boulevard, Mail Stop 1008, 66160, Kansas City, KS, USA
| | - Carissa Walter
- Department of Radiology, University of Kansas Medical Center, 3901 Rainbow Boulevard, Mail Stop 4032, 66160, Kansas City, KS, USA
| | - Ryan Ash
- Department of Radiology, University of Kansas Medical Center, 3901 Rainbow Boulevard, Mail Stop 4032, 66160, Kansas City, KS, USA
| | - Kirk Miller
- Department of Radiology, University of Kansas Medical Center, 3901 Rainbow Boulevard, Mail Stop 4032, 66160, Kansas City, KS, USA
| | - Adam Alli
- Department of Radiology, University of Kansas Medical Center, 3901 Rainbow Boulevard, Mail Stop 4032, 66160, Kansas City, KS, USA
| | - Aaron Rohr
- Department of Radiology, University of Kansas Medical Center, 3901 Rainbow Boulevard, Mail Stop 4032, 66160, Kansas City, KS, USA
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Smith B, Rohr A, Alsup A, Johnson B, Moore X, Pankratz D, Walter C. Abstract No. 56 Comparing Outcomes of Percutaneous Biliary Drainage Catheters in Right versus Left Hepatic Approaches. J Vasc Interv Radiol 2023. [DOI: 10.1016/j.jvir.2022.12.100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/26/2023] Open
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Nygard A, Hanna N, Fiore G, Rohr A, Alli A, Collins Z, Irani N. Blueprint for Implementing and Improving Eligible Inferior Vena Cava (IVC) Filter Retrieval Across Institutions. Kans J Med 2022; 15:422-424. [DOI: 10.17161/kjm.vol15.18449] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Accepted: 11/03/2022] [Indexed: 11/30/2022] Open
Abstract
INTRODUCTION. Placement of removable filters (rIVCFs) has increased, but this has not been accompanied by timely removal, with retrieval rates as low as 8.5% at some institutions. Studies demonstrate failure to remove rIVCFs that are not medically necessary result in increased complications. This study discusses the development of an IVC filter follow up protocol.
METHODS. A method to monitor IVC filter placement and retrieval was developed. A weekly report was generated detailing placement and removal of rIVCFs. A standardized retrieval calculator was utilized to determine efficacy of removal. An IVC filter Retrieval Assessment Form was developed. Managing physicians and patients with medically unnecessary filters were sent letters with a retrieval checklist and order form. If not removed within one year, additional letters were sent. Standardized IVC filter reporting templates were created and utilized after insertion of all filters with retrieval status. Letters were eventually built into the EMR for direct routing.
RESULTS. From 2015 to 2020, IVC filters were placed in 719 patients. Of those, 58% were eligible for retrieval. Initial rates of rIVCF removal in eligible patients were as low as 30-33% in 2015. The retrieval rate of eligible filters rose to 44% in September 2018. The rate of retrieval rose to 61% in January 2021.
CONCLUSIONS. Employing a systemic protocol to aid in follow-up of patients following rIVCF placement can improve rates of retrieval in the appropriate clinical setting. Regular evaluation and revision of the process played a significant role in achieving an increase in retrieval rates.
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Dalla S, Richards L, Alli A, Custer B, Rohr A. 3D printed model to assist endovascular prostate artery embolization for benign prostatic hyperplasia. Radiol Case Rep 2022; 17:4161-4164. [PMID: 36105833 PMCID: PMC9464764 DOI: 10.1016/j.radcr.2022.08.026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Accepted: 08/09/2022] [Indexed: 11/18/2022] Open
Affiliation(s)
- Shiv Dalla
- University of Kansas School of Medicine, 3901 Rainbow Boulevard Kansas City, KS 66160, USA
- Corresponding author.
| | - Lucas Richards
- University of Kansas School of Medicine, 3901 Rainbow Boulevard Kansas City, KS 66160, USA
| | - Adam Alli
- Department of Radiology, University of Kansas Medical Center, 4000 Cambridge St, Kansas City, KS 66160, USA
| | - Brandon Custer
- Department of Radiology, University of Kansas Medical Center, 4000 Cambridge St, Kansas City, KS 66160, USA
| | - Aaron Rohr
- Department of Radiology, University of Kansas Medical Center, 4000 Cambridge St, Kansas City, KS 66160, USA
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Townsend P, Abicht T, Alli A, Johnson P, Rohr A. Successful Outflow Graft Stent Placement for a Malfunctioning Left Ventricular Assist Device. J Vasc Interv Radiol 2022; 33:1270-1271. [PMID: 36182257 DOI: 10.1016/j.jvir.2022.06.020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Revised: 04/20/2022] [Accepted: 06/25/2022] [Indexed: 11/26/2022] Open
Affiliation(s)
- Patricia Townsend
- Department of Radiology, The University of Kansas Medical Center, Kansas City, Kansas.
| | - Travis Abicht
- Department of Cardiothoracic Surgery, The University of Kansas Medical Center, Kansas City, Kansas
| | - Adam Alli
- Department of Radiology, The University of Kansas Medical Center, Kansas City, Kansas
| | - Philip Johnson
- Department of Radiology, The University of Kansas Medical Center, Kansas City, Kansas
| | - Aaron Rohr
- Department of Radiology, The University of Kansas Medical Center, Kansas City, Kansas
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Delozier A, Walter C, Samuel C, Clark L, Fiore G, Rohr A, Collins Z. Abstract No. 372 Comparison of fine needle aspiration versus core biopsies for pulmonary nodules. J Vasc Interv Radiol 2022. [DOI: 10.1016/j.jvir.2022.03.453] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
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Rohr A, Collins Z, Hodson A, Zhang K, Krebs H, Ghandi R, O’Hara R, Akhter N, Wang E, Grilli C, Brower J, Peck S, Petroziello M, Aal AA, Golzarian J, Brown D. Abstract No. 32 Multi-institutional review of patients receiving Y-90 transarterial radioembolization (TARE) with hepatic tumors status post partial hepatectomy. J Vasc Interv Radiol 2022. [DOI: 10.1016/j.jvir.2022.03.113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
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Silva LR, Moura APC, Gil BV, Rohr A, Almeida SMZ, Donazzolo J, Perboni AT, Oliveira FLR, Sant'Anna-Santos BF, Galon L, Danner MA. Morphophysiological changes of Acca sellowiana (Myrtaceae: Myrtoideae) saplings under shade gradient. BRAZ J BIOL 2022; 84:e252364. [PMID: 35019092 DOI: 10.1590/1519-6984.252364] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Accepted: 10/06/2021] [Indexed: 11/21/2022] Open
Abstract
Understanding morphological and physiological changes under different light conditions in native fruit species in juveniles' stage is important, as it indicate the appropriate environment to achieve vigorous saplings. We aimed to verify growth and morphophysiological changes under shade gradient in feijoa (Acca sellowiana (O. Berg) Burret) to achieve good quality saplings adequate to improve cultivation in orchards. The saplings were grown for twenty-one-month under four shading treatments (0%, 30%, 50%, and 80%). Growth, photosynthetic pigments, gas exchanges, chlorophyll fluorescence, and leaf anatomy parameters were evaluated. Saplings under full sun and 30% shade had higher height and diameter growth and dry mass accumulation due to higher photosynthesis rate. As main acclimatization mechanisms in feijoa saplings under 80% shade were developed larger leaf area, reduced leaf blade thickness, and enhanced quantum yield of photosystem II. Even so, the net CO2 assimilation and the electron transport rate was lower and, consequently, there was a restriction on the growth and dry mass in saplings under deep shade. Therefore, to obtain higher quality feijoa saplings, we recommend that it be carried out in full sun or up to 30% shade, to maximize the sapling vigor in nurseries and, later, this light environment can also be used in orchards for favor growth and fruit production.
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Affiliation(s)
- L R Silva
- Universidade Tecnológica Federal do Paraná - UTFPR, Câmpus Pato Branco, Programa de Pós-Graduação em Agronomia, Pato Branco, Paraná, Brasil
| | - A P C Moura
- Universidade Tecnológica Federal do Paraná - UTFPR, Câmpus Pato Branco, Programa de Pós-Graduação em Agronomia, Pato Branco, Paraná, Brasil
| | - B V Gil
- Universidade Tecnológica Federal do Paraná - UTFPR, Câmpus Pato Branco, Programa de Pós-Graduação em Agronomia, Pato Branco, Paraná, Brasil
| | - A Rohr
- Universidade Tecnológica Federal do Paraná - UTFPR, Câmpus Pato Branco, Programa de Pós-Graduação em Agronomia, Pato Branco, Paraná, Brasil
| | - S M Z Almeida
- Universidade Tecnológica Federal do Paraná - UTFPR, Câmpus Pato Branco, Programa de Pós-Graduação em Agronomia, Pato Branco, Paraná, Brasil
| | - J Donazzolo
- Universidade Tecnológica Federal do Paraná - UTFPR, Câmpus Dois Vizinhos, Programa de Pós-Graduação em Agroecossistemas, Dois Vizinhos, Paraná, Brasil
| | - A T Perboni
- Universidade Tecnológica Federal do Paraná - UTFPR, Câmpus Dois Vizinhos, Programa de Pós-Graduação em Agroecossistemas, Dois Vizinhos, Paraná, Brasil
| | - F L R Oliveira
- Universidade Federal do Paraná - UFPR, Departamento de Botânica, Curitiba, Paraná, Brasil
| | - B F Sant'Anna-Santos
- Universidade Federal do Paraná - UFPR, Departamento de Botânica, Curitiba, Paraná, Brasil
| | - L Galon
- Universidade Federal da Fronteira Sul - UFFS, Câmpus Erechim, Programa de Pós-Graduação em Ciência e Tecnologia Ambiental, Erechim, Rio Grande do Sul, Brasil
| | - M A Danner
- Universidade Tecnológica Federal do Paraná - UTFPR, Câmpus Pato Branco, Programa de Pós-Graduação em Agronomia, Pato Branco, Paraná, Brasil
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Bombardier B, Alli A, Rohr A, Collins Z, Raval K. A case of two shunts in the endovascular treatment of type II Abernethy syndrome. CVIR Endovasc 2022; 5:3. [PMID: 34985620 PMCID: PMC8733101 DOI: 10.1186/s42155-021-00279-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2021] [Accepted: 12/21/2021] [Indexed: 11/25/2022] Open
Abstract
Background Abernethy malformation is a rare condition defined by a congenital extrahepatic portosystemic shunt, often leading to absence or hypoplasia of the intrahepatic portal venous system. Although there are no consensus treatment guidelines, interventional techniques now offer minimally invasive treatment options for Abernethy malformations. This case report describes a case of Abernethy Syndrome Type II where the patient had two separate extrahepatic portosystemic shunts treated with endovascular occlusion with two Amplatzer plugs and demonstrates the feasibility of this treatment for this rare condition. This case was in a young adult, adding to the scarce literature of treatment for Abernethy syndrome in the adult population. Case presentation We report a case of a 20-year-old female patient with neurocognitive behavioral difficulty, voracious appetite, and chronic encephalopathy secondary to type II Abernethy malformation with not one, but two extrahepatic portosystemic shunts. The patient had failed medical management and was not a liver transplant candidate. Therefore, she presented to us for an endovascular treatment option. The two shunts were treated with endovascular occlusion using Amplatzer vascular plugs. Following embolization, flow into the hypoplastic portal vein improved with near complete occlusion of flow into the portosystemic shunts, thus restoring blood flow into the native portal system. At 3 month follow up, a CT demonstrated complete occlusion of the two portosystemic shunts, and a portal vein diminutive in caliber. The portal vein measured 7 mm in diameter on both pre and post-procedure CT scans. The total volume of the liver was found to be 843 cm3 on pre-procedure CT & 1191 cm3 on post-procedure CT. Conclusions This report demonstrates the feasibility of using endovascular embolization to treat Abernethy II malformations. The management strategy of Type II Abernethy Syndrome should be to redirect blood flow into the hypoplastic native portal system, allowing for physiologic hepatic metabolism of splanchnic blood, hypertrophy of the portal system, and growth of the liver from the increased trophic flow.
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Affiliation(s)
- Brenden Bombardier
- University of Kansas Medical Center, 3901 Rainbow Blvd, MS 4032, Kansas City, KS, 66160, USA.
| | - Adam Alli
- University of Kansas Medical Center, 3901 Rainbow Blvd, MS 4032, Kansas City, KS, 66160, USA
| | - Aaron Rohr
- University of Kansas Medical Center, 3901 Rainbow Blvd, MS 4032, Kansas City, KS, 66160, USA
| | - Zachary Collins
- University of Kansas Medical Center, 3901 Rainbow Blvd, MS 4032, Kansas City, KS, 66160, USA
| | - Kavi Raval
- University of Kansas Medical Center, 3901 Rainbow Blvd, MS 4032, Kansas City, KS, 66160, USA
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Caye A, Lemons S, Mathias L, Collins Z, Miller K, Rohr A. Percutaneous Splenule Ablation for Recurrent Idiopathic Thrombocytopenia Following Splenectomy- A Case Series. J Vasc Interv Radiol 2021; 33:352-354. [PMID: 34922015 DOI: 10.1016/j.jvir.2021.12.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Revised: 12/03/2021] [Accepted: 12/08/2021] [Indexed: 10/19/2022] Open
Affiliation(s)
- Adrien Caye
- M.D. Candidate, Class of 2024, University of Kansas Medical Center, Department of Radiology, 3901 Rainbow Boulevard, Mail Stop 4032, Kansas City, Kansas 66160.
| | - Steven Lemons
- University of Kansas Medical Center, Department of Radiology
| | - Larry Mathias
- University of Kansas Medical Center, Department of Radiology
| | - Zachary Collins
- University of Kansas Medical Center, Department of Radiology
| | - Kirk Miller
- University of Kansas Medical Center, Department of Radiology
| | - Aaron Rohr
- University of Kansas Medical Center, Department of Radiology
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Lyndon D, van den Broek M, Niu B, Yip S, Rohr A, Settecase F. Hypoperfusion Intensity Ratio Correlates with CTA Collateral Status in Large-Vessel Occlusion Acute Ischemic Stroke. AJNR Am J Neuroradiol 2021; 42:1380-1386. [PMID: 34140276 DOI: 10.3174/ajnr.a7181] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2020] [Accepted: 02/19/2021] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE Collateral blood supply is a key determinant of outcome in large-vessel occlusion acute ischemic stroke. Single- and multiphase CTA collateral scoring systems have been described but are subjective and require training. We aimed to test whether the CTP-derived hypoperfusion intensity ratio is associated with CTA collateral status and whether a threshold hypoperfusion intensity ratio exists that predicts poor CTA collaterals. MATERIALS AND METHODS Imaging and clinical data of consecutive patients with large-vessel occlusion acute ischemic stroke were retrospectively reviewed. Single-phase CTA and multiphase CTA scoring were performed by 2 blinded neuroradiologists using the Tan, Maas, and Calgary/Menon methods. CTP was processed using RApid processing of PerfusIon and Diffusion software (RAPID). Hypoperfusion intensity ratio = ratio of brain volume with time-to-maximum >10 seconds over time-to-maximum >6-second volume. Correlation between the hypoperfusion intensity ratio and CTA collateral scores was calculated using the Pearson correlation. The optimal threshold of the hypoperfusion intensity ratio for predicting poor collaterals was determined using receiver operating characteristic curve analysis. RESULTS Fifty-two patients with large-vessel occlusion acute ischemic stroke were included. Multiphase CTA collateral scoring showed better interrater agreement (κ = 0.813) than single-phase CTA (Tan, κ = 0.587; Maas, κ = 0.273). The hypoperfusion intensity ratio correlated with CTA collateral scores (multiphase CTA: r = -0.55; 95% CI, -0.67 to -0.40; P ≤ .001). The optimal threshold for predicting poor multiphase CTA collateral status was a hypoperfusion intensity ratio of >0.45 (sensitivity = 78%; specificity = 76%; area under the curve = 0.86). Patients with high hypoperfusion intensity ratio/poor collateral status had lower ASPECTS/larger infarcts, higher NIHSS scores, and larger hypoperfused volumes. CONCLUSIONS The hypoperfusion intensity ratio is associated with CTA collateral status in patients with large-vessel occlusion acute ischemic stroke. The hypoperfusion intensity ratio is an automated and quantitative alternative to CTA collateral scoring methods for both clinical and future stroke trial settings.
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Affiliation(s)
- D Lyndon
- Neuroradiology Division (D.L., M.v.d.B., A.R., F.S.), Vancouver General Hospital, Vancouver, British Columbia, Canada
- Department of Radiology (D.L., M.v.d.B., A.R., F.S.), University of British Columbia, Vancouver, v, Canada
| | - M van den Broek
- Neuroradiology Division (D.L., M.v.d.B., A.R., F.S.), Vancouver General Hospital, Vancouver, British Columbia, Canada
- Department of Radiology (D.L., M.v.d.B., A.R., F.S.), University of British Columbia, Vancouver, v, Canada
| | - B Niu
- Vancouver Imaging Inc (B.N.), Vancouver, British Columbia, Canada
| | - S Yip
- Department of Neurology (S.Y.), University of British Columbia, Vancouver, British Columbia, Canada
| | - A Rohr
- Neuroradiology Division (D.L., M.v.d.B., A.R., F.S.), Vancouver General Hospital, Vancouver, British Columbia, Canada
- Department of Radiology (D.L., M.v.d.B., A.R., F.S.), University of British Columbia, Vancouver, v, Canada
| | - F Settecase
- Neuroradiology Division (D.L., M.v.d.B., A.R., F.S.), Vancouver General Hospital, Vancouver, British Columbia, Canada
- Department of Radiology (D.L., M.v.d.B., A.R., F.S.), University of British Columbia, Vancouver, v, Canada
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Busch C, Fehr A, Rohr A, Custe B, Collins Z. Do Video Games Predict an Early Advanced Capacity to Learn Interventional Radiology Skills? J Med Educ Curric Dev 2021; 8:2382120521992334. [PMID: 33614969 PMCID: PMC7871050 DOI: 10.1177/2382120521992334] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/20/2021] [Accepted: 01/15/2021] [Indexed: 06/12/2023]
Abstract
PURPOSE To elucidate the relationship between video game (VG) play and interventional radiology (IR) technical skills in medical students. MATERIALS AND METHODS Twenty medical students recruited at our institution's IR symposium completed a survey to ascertain demographics and prior VG experience, then participated in a 3-part trial of skills assessing IR and VG skill and visuospatial aptitude (VSA). IR skill was evaluated via an endovascular simulation task, VG skill by performance on three separate VGs, and VSA using the Cube Comparison test. Regression analysis was tested the strength of relationship between IR skill and VG experience, VG skill, and VSA, respectively, and participants were stratified by IR skill to top and bottom halves for survey-response comparison. RESULTS There was no correlation between either VG skill or visuospatial aptitude and IR skill (r = -0.22, p = 0.35; and r = 0.14, p = 0.57). Greater number of years playing VGs correlated with superior IR skill (Spearman's rho=-0.45, p<0.05). Students who selected IR as their specialty of interest had extensive VG experience, playing for > 15 years (n = 4, 80%), at least 10 hours per week at their peak (n = 3, 60%), and reported being either "skilled" or "highly skilled" at VGs (n = 3, 60%). CONCLUSIONS In our study, though limited by power, number of years playing VGs correlated positively with IR skills in medical students. Prior VG experience may predict an early advanced capacity to learn IR skills and an interest in the specialty.
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Affiliation(s)
- Caleb Busch
- Interventional Radiology Department, Emory University School of Medicine, Atlanta, Georgia, USA
| | - Austin Fehr
- Interventional Radiology Department, University of Kansas School of Medicine, Kansas City, KS, USA
| | - Aaron Rohr
- Interventional Radiology Department, University of Kansas School of Medicine, Kansas City, KS, USA
| | - Brandon Custe
- Interventional Radiology Department, University of Kansas School of Medicine, Kansas City, KS, USA
| | - Zachary Collins
- Interventional Radiology Department, University of Kansas School of Medicine, Kansas City, KS, USA
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Abstract
Although acute ischemic stroke remains one of the most common causes of death and disability worldwide, it is a potentially treatable condition if appropriately managed in a timely manner. The goals of acute stroke imaging include establishing a diagnosis as fast as possible with (1) accurate infarct quantification, (2) intracranial and cervical vasculature assessment, and (3) brain perfusion analysis for detection of infarct core and potentially salvageable penumbra allowing optimal patient selection for appropriate therapy. Given the extensive number of images generated from acute stroke imaging studies and as "time is brain," this article aims to highlight a logical approach for the radiologist in acute stroke computed tomography imaging in order to accurately interpret and communicate results in a timely manner.
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Affiliation(s)
- D Byrne
- Division of Neuroradiology, Vancouver General Hospital, Vancouver, British Columbia, Canada.,University of British Columbia, Vancouver, British Columbia, Canada
| | - J P Walsh
- University of British Columbia, Vancouver, British Columbia, Canada.,Division of Emergency Radiology, Vancouver General Hospital, Vancouver, British Columbia, Canada
| | - G Sugrue
- University of British Columbia, Vancouver, British Columbia, Canada.,Division of Emergency Radiology, Vancouver General Hospital, Vancouver, British Columbia, Canada
| | - S Nicolaou
- University of British Columbia, Vancouver, British Columbia, Canada.,Division of Emergency Radiology, Vancouver General Hospital, Vancouver, British Columbia, Canada
| | - A Rohr
- Division of Neuroradiology, Vancouver General Hospital, Vancouver, British Columbia, Canada.,University of British Columbia, Vancouver, British Columbia, Canada
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15
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Rohr A, Maxwell K, Best S, Lemons S, Johnson P. Rare presentation and endovascular treatment of multifocal iliac venous stenoses due to right sided May-Thurner Syndrome. Radiol Case Rep 2020; 15:201-203. [PMID: 31890068 PMCID: PMC6928296 DOI: 10.1016/j.radcr.2019.11.013] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2019] [Accepted: 11/20/2019] [Indexed: 10/25/2022] Open
Abstract
May-Thurner Syndrome (MTS) is a well-recognized anatomical variant describing compression of the left common iliac vein and may manifest as lower extremity swelling, pain, ulceration, discoloration, and paresthesia. Right-sided MTS is documented in the literature, though exceedingly rare. Specifically, no current reports describe a multifocal stenoses of the right iliac vein due to anatomical variants associated with left sided IVC. We present a case involving a patient with this pathophysiology, radiographic/sonographic correlate imaging, and subsequent endovascular treatment.
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Affiliation(s)
- Aaron Rohr
- University of Kansas Medical Center, Department of Radiology, 3901 Rainbow Boulevard, Mail Stop 4032, Kansas City 66160, Kansas
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16
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Byrne D, Walsh JP, Schmiedeskamp H, Settecase F, Heran MKS, Niu B, Salmeen AK, Rohr B, Field TS, Murray N, Rohr A. Prediction of Hemorrhage after Successful Recanalization in Patients with Acute Ischemic Stroke: Improved Risk Stratification Using Dual-Energy CT Parenchymal Iodine Concentration Ratio Relative to the Superior Sagittal Sinus. AJNR Am J Neuroradiol 2020; 41:64-70. [PMID: 31896566 DOI: 10.3174/ajnr.a6345] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2019] [Accepted: 10/08/2019] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE Brain parenchymal hyperdensity on postthrombectomy CT in patients with acute stroke can be due to hemorrhage and/or contrast staining. We aimed to determine whether iodine concentration within contrast-stained parenchyma compared with an internal reference in the superior sagittal sinus on dual-energy CT could predict subsequent intracerebral hemorrhage. MATERIALS AND METHODS Seventy-one patients with small infarct cores (ASPECTS ≥ 7) and good endovascular recanalization (modified TICI 2b or 3) for anterior circulation large-vessel occlusion were included. Brain parenchymal iodine concentration as per dual-energy CT and the percentage of contrast staining relative to the superior sagittal sinus were recorded and correlated with the development of intracerebral hemorrhage using Mann-Whitney U and Fisher exact tests. RESULTS Forty-three of 71 patients had parenchymal hyperdensity on initial dual-energy CT. The median relative iodine concentration compared with the superior sagittal sinus was significantly higher in those with subsequent intracerebral hemorrhage (137.9% versus 109.2%, P = .007). By means of receiver operating characteristic analysis, a cutoff value of 100% (iodine concentration relative to the superior sagittal sinus) enabled identification of patients going on to develop intracerebral hemorrhage with 94.75% sensitivity, 43.4% specificity, and a likelihood ratio of 1.71. CONCLUSIONS Within our cohort of patients, the relative percentage of iodine concentration at dual-energy CT compared with the superior sagittal sinus was a reliable predictor of intracerebral hemorrhage development and may be a useful imaging biomarker for risk stratification after endovascular treatment.
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Affiliation(s)
- D Byrne
- From the Division of Neuroradiology (D.B., F.S., M.K.S.H., A.R.) .,University of British Columbia (D.B., J.P.W., F.S., M.K.S.H., B.R., T.S.F., N.M., A.R.), Vancouver, British Columbia, Canada
| | - J P Walsh
- Department of Emergency Radiology (J.P.W., N.M.).,University of British Columbia (D.B., J.P.W., F.S., M.K.S.H., B.R., T.S.F., N.M., A.R.), Vancouver, British Columbia, Canada
| | | | - F Settecase
- From the Division of Neuroradiology (D.B., F.S., M.K.S.H., A.R.).,University of British Columbia (D.B., J.P.W., F.S., M.K.S.H., B.R., T.S.F., N.M., A.R.), Vancouver, British Columbia, Canada
| | - M K S Heran
- From the Division of Neuroradiology (D.B., F.S., M.K.S.H., A.R.).,University of British Columbia (D.B., J.P.W., F.S., M.K.S.H., B.R., T.S.F., N.M., A.R.), Vancouver, British Columbia, Canada
| | - B Niu
- Vancouver Imaging (B.N.), Vancouver General Hospital, Vancouver, British Columbia, Canada
| | - A K Salmeen
- Division of Neurology (A.K.S., T.S.F.), Department of Medicine, Vancouver Stroke Program, Brain Research Center, University of British Columbia, Vancouver, British Columbia, Canada
| | - B Rohr
- University of British Columbia (D.B., J.P.W., F.S., M.K.S.H., B.R., T.S.F., N.M., A.R.), Vancouver, British Columbia, Canada
| | - T S Field
- Division of Neurology (A.K.S., T.S.F.), Department of Medicine, Vancouver Stroke Program, Brain Research Center, University of British Columbia, Vancouver, British Columbia, Canada.,University of British Columbia (D.B., J.P.W., F.S., M.K.S.H., B.R., T.S.F., N.M., A.R.), Vancouver, British Columbia, Canada
| | - N Murray
- Department of Emergency Radiology (J.P.W., N.M.).,University of British Columbia (D.B., J.P.W., F.S., M.K.S.H., B.R., T.S.F., N.M., A.R.), Vancouver, British Columbia, Canada
| | - A Rohr
- From the Division of Neuroradiology (D.B., F.S., M.K.S.H., A.R.).,University of British Columbia (D.B., J.P.W., F.S., M.K.S.H., B.R., T.S.F., N.M., A.R.), Vancouver, British Columbia, Canada
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17
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Jang B, Rohr A, Vakharia PP, Collins Z, Marsh C, Herrera I, Fahrbach T. Case report: interventional radiology's potential role for in vitro fertilization post ovarian transposition and pelvic radiation. Fertil Res Pract 2019; 5:4. [PMID: 30984410 PMCID: PMC6444845 DOI: 10.1186/s40738-019-0056-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/31/2019] [Accepted: 03/25/2019] [Indexed: 11/24/2022]
Abstract
Introduction Ovarian transposition is a procedure that can help preserve fertility for female patients requiring radiation in the abdominopelvic region. However, the displacement of ovaries from its original anatomic location can make oocyte retrieval challenging. Case presentation A 24-year-old nulligravid patient recently diagnosed with colorectal carcinoma [CRC] underwent ovarian transposition prior to radiation. After radiation and chemotherapy, she began in vitro fertilization [IVF] by reproductive endocrinology and infertility physicians. Right ovary demonstrated nonviability due to failed transposition and radiation. Left ovarian oocytes were not able to be harvested due to risk of left kidney puncture via transvaginal ultrasound [TVUS]. Interventional Radiology [IR] was involved and performed a transabdominal ultrasound guided egg retrieval which led to successful IVF. Conclusion This case highlights the utility of IR-assisted transabdominal ultrasound approach for oocyte retrieval in patients with history of ovarian transposition.
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Affiliation(s)
- Benjamin Jang
- 1MacNeal Hospital, Internal Medicine, Berwyn, IL USA
| | - Aaron Rohr
- 2Stanford University, Interventional Radiology, Palo Alto, CA USA
| | | | - Zachary Collins
- 3University of Kansas, Interventional Radiology, Kansas City, KS USA
| | - Courtney Marsh
- 4University of Kansas, Obstetrics and Gynecology, Kansas City, KS USA
| | - Isabella Herrera
- 5Riverside Community Hospital, Emergency Medicine, Riverside, CA USA
| | - Thomas Fahrbach
- Boulder Community Health, Interventional Radiology, Boulder, CO USA
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18
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Busch C, Rohr A, Frenette A, Fehr A, Jang B, Hasham H, Custer B, Sigle M, Walter C, Hunt S, Collins Z. Abstract No. 489 Does video game skill correlate with interventional radiology skillset? J Vasc Interv Radiol 2019. [DOI: 10.1016/j.jvir.2018.12.570] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
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19
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Rohr A, Werth K, Shen X, Collins Z, Fishback S, Jones J, Ash R, Williams V. MRI findings of absorbable hydrogel spacer for prostate cancer therapy: a pictorial review. Abdom Radiol (NY) 2019; 44:247-251. [PMID: 29967983 DOI: 10.1007/s00261-018-1685-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Prior studies have shown that dose-escalated radiation therapy for prostate cancer improves clinical outcomes. However, this is associated with increased rectal toxicity. Hydrogel spacer for prostate cancer therapy is an effective way of decreasing rectal toxicity in the late post-therapeutic stages. In some occasions, the gel spacer may not be placed symmetrically between the rectum and prostate. There are several forms of a malpositioned spacer, including lateral displacement, rectal wall infiltration, and prostate capsule infiltration. This manuscript is aimed at evaluating appropriately positioned and malpositioned gel spacers, primarily via magnetic resonance imaging. There are limited educational imaging guides that address what radiologists should evaluate on post-spacer placement imaging. This pictorial review will specifically evaluate post-injection pitfalls such as asymmetry, rectal wall infiltration, and subcapsular injection.
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Affiliation(s)
- Aaron Rohr
- Department of Interventional Radiology, University of Stanford, 300 Pasteur Drive, H3531, Stanford, CA, 94305, USA.
| | - Kyle Werth
- Department of Radiology, University of Kansas Health Systems, Kansas City, USA
| | - Xinglei Shen
- Department of Radiation Oncology, University of Kansas Health Systems, Kansas City, USA
| | - Zachary Collins
- Department of Radiology, University of Kansas Health Systems, Kansas City, USA
| | - Shelby Fishback
- Department of Radiology, University of Kansas Health Systems, Kansas City, USA
| | - Jill Jones
- Department of Radiology, University of Kansas Health Systems, Kansas City, USA
| | - Ryan Ash
- Department of Radiology, University of Kansas Health Systems, Kansas City, USA
| | - Vanessa Williams
- Department of Radiology, University of Kansas Health Systems, Kansas City, USA
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20
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Condic M, Rohr A, Ayub TH, Riemann S, Hecking T, Schiller C, Keyver-Paik MD, Thiesler T, Kirfel J, Barchet W, Kristiansen G, Kuhn W, Rudlowski C, Kübler K. Tumor-associated macrophages correlate with neoangiogenesis and poor outcome in vulvar squamous cell carcinoma. Geburtshilfe Frauenheilkd 2018. [DOI: 10.1055/s-0038-1671004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022] Open
Affiliation(s)
- M Condic
- Department of Obstetrics and Gynecology, University of Bonn, Center for Integrated Oncology, Bonn, Deutschland
| | - A Rohr
- Department of Obstetrics and Gynecology, University of Bonn, Center for Integrated Oncology, Bonn, Deutschland
| | - TH Ayub
- Department of Obstetrics and Gynecology, University of Bonn, Center for Integrated Oncology, Bonn, Deutschland
| | - S Riemann
- Institute of Clinical Chemistry and Pharmacology, University of Bonn, Center for Integrated Oncology, Bonn, Deutschland
| | - T Hecking
- Department of Obstetrics and Gynecology, University of Bonn, Center for Integrated Oncology, Bonn, Deutschland
| | - C Schiller
- Institute of Pathology, University of Bonn, Center for Integrated Oncology, Bonn, Deutschland
| | - MD Keyver-Paik
- Department of Obstetrics and Gynecology, University of Bonn, Center for Integrated Oncology, Bonn, Deutschland
| | - T Thiesler
- Institute of Pathology, University of Bonn, Center for Integrated Oncology, Bonn, Deutschland
| | - J Kirfel
- Institute of Pathology, University of Bonn, Center for Integrated Oncology, Bonn, Deutschland
| | - W Barchet
- Institute of Clinical Chemistry and Pharmacology, University of Bonn, Center for Integrated Oncology, Bonn, Deutschland
| | - G Kristiansen
- Institute of Pathology, University of Bonn, Center for Integrated Oncology, Bonn, Deutschland
| | - W Kuhn
- Department of Obstetrics and Gynecology, University of Bonn, Center for Integrated Oncology, Bonn, Deutschland
| | - C Rudlowski
- Evangelisches Krankenhaus, Bergisch Gladbach, Deutschland
| | - K Kübler
- Harvard Medical School, Broad Institute of MIT and Harvard, Boston, Vereinigte Staaten von Amerika
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21
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Román LS, Menon BK, Blasco J, Hernández-Pérez M, Dávalos A, Majoie CBLM, Campbell BCV, Guillemin F, Lingsma H, Anxionnat R, Epstein J, Saver JL, Marquering H, Wong JH, Lopes D, Reimann G, Desal H, Dippel DWJ, Coutts S, du Mesnil de Rochemont R, Yavagal D, Ferre JC, Roos YBWEM, Liebeskind DS, Lenthall R, Molina C, Al Ajlan FS, Reddy V, Dowlatshahi D, Sourour NA, Oppenheim C, Mitha AP, Davis SM, Weimar C, van Oostenbrugge RJ, Cobo E, Kleinig TJ, Donnan GA, van der Lugt A, Demchuk AM, Berkhemer OA, Boers AMM, Ford GA, Muir KW, Brown BS, Jovin T, van Zwam WH, Mitchell PJ, Hill MD, White P, Bracard S, Goyal M, Berkhemer OA, Fransen PSS, Beumer D, van den Berg LA, Lingsma HF, Yoo AJ, Schonewille WJ, Vos JA, Nederkoorn PJ, Wermer MJH, van Walderveen MAA, Staals J, Hofmeijer J, van Oostayen JA, Lycklama à Nijeholt GJ, Boiten J, Brouwer PA, Emmer BJ, de Bruijn SF, van Dijk LC, Kappelle J, Lo RH, van Dijk EJ, de Vries J, de Kort PL, van Rooij WJJ, van den Berg JS, van Hasselt BA, Aerden LA, Dallinga RJ, Visser MC, Bot JC, Vroomen PC, Eshghi O, Schreuder TH, Heijboer RJ, Keizer K, Tielbeek AV, den Hertog HM, Gerrits DG, van den Berg-Vos RM, Karas GB, Steyerberg EW, Flach Z, Marquering HA, Sprengers ME, Jenniskens SF, Beenen LF, Zech M, Kowarik M, Seifert C, Schwaiger B, Puri A, Hou S, Wakhloo A, Moonis M, Henniger N, Goddeau R, van den Berg R, Massari F, Minaeian A, Lozano JD, Ramzan M, Stout C, Patel A, Tunguturi A, Onteddu S, Carandang R, Howk M, Koudstaal PJ, Ribó M, Sanjuan E, Rubiera M, Pagola J, Flores A, Muchada M, Meler P, Huerga E, Gelabert S, Coscojuela P, van Zwam WH, Tomasello A, Rodriguez D, Santamarina E, Maisterra O, Boned S, Seró L, Rovira A, Molina CA, Millán M, Muñoz L, Roos YB, Pérez de la Ossa N, Gomis M, Dorado L, López-Cancio E, Palomeras E, Munuera J, García Bermejo P, Remollo S, Castaño C, García-Sort R, van der Lugt A, Cuadras P, Puyalto P, Hernández-Pérez M, Jiménez M, Martínez-Piñeiro A, Lucente G, Dávalos A, Chamorro A, Urra X, Obach V, van Oostenbrugge RJ, Cervera A, Amaro S, Llull L, Codas J, Balasa M, Navarro J, Ariño H, Aceituno A, Rudilosso S, Renu A, Majoie CB, Macho JM, San Roman L, Blasco J, López A, Macías N, Cardona P, Quesada H, Rubio F, Cano L, Lara B, Dippel DW, de Miquel MA, Aja L, Serena J, Cobo E, Albers GW, Lees KR, Arenillas J, Roberts R, Minhas P, Al-Ajlan F, Brown MM, Salluzzi M, Zimmel L, Patel S, Eesa M, Martí-Fàbregas J, Jankowitz B, Serena J, Salvat-Plana M, López-Cancio E, Bracard S, Liebig T, Ducrocq X, Anxionnat R, Baillot PA, Barbier C, Derelle AL, Lacour JC, Richard S, Samson Y, Sourour N, Baronnet-Chauvet F, Stijnen T, Clarencon F, Crozier S, Deltour S, Di Maria F, Le Bouc R, Leger A, Mutlu G, Rosso C, Szatmary Z, Yger M, Andersson T, Zavanone C, Bakchine S, Pierot L, Caucheteux N, Estrade L, Kadziolka K, Leautaud A, Renkes C, Serre I, Desal H, Mattle H, Guillon B, Boutoleau-Bretonniere C, Daumas-Duport B, De Gaalon S, Derkinderen P, Evain S, Herisson F, Laplaud DA, Lebouvier T, Lintia-Gaultier A, Wahlgren N, Pouclet-Courtemanche H, Rouaud T, Rouaud Jaffrenou V, Schunck A, Sevin-Allouet M, Toulgoat F, Wiertlewski S, Gauvrit JY, Ronziere T, Cahagne V, van der Heijden E, Ferre JC, Pinel JF, Raoult H, Mas JL, Meder JF, Al Najjar-Carpentier AA, Birchenall J, Bodiguel E, Calvet D, Domigo V, Ghannouti N, Godon-Hardy S, Guiraud V, Lamy C, Majhadi L, Morin L, Naggara O, Trystram D, Turc G, Berge J, Sibon I, Fleitour N, Menegon P, Barreau X, Rouanet F, Debruxelles S, Kazadi A, Renou P, Fleury O, Pasco-Papon A, Dubas F, Caroff J, Hooijenga I, Godard Ducceschi S, Hamon MA, Lecluse A, Marc G, Giroud M, Ricolfi F, Bejot Y, Chavent A, Gentil A, Kazemi A, Puppels C, Osseby GV, Voguet C, Mahagne MH, Sedat J, Chau Y, Suissa L, Lachaud S, Houdart E, Stapf C, Buffon Porcher F, Pellikaan W, Chabriat H, Guedin P, Herve D, Jouvent E, Mawet J, Saint-Maurice JP, Schneble HM, Turjman F, Nighoghossian N, Berhoune NN, Geerling A, Bouhour F, Cho TH, Derex L, Felix S, Gervais-Bernard H, Gory B, Manera L, Mechtouff L, Ritzenthaler T, Riva R, Lindl-Velema A, Salaris Silvio F, Tilikete C, Blanc R, Obadia M, Bartolini MB, Gueguen A, Piotin M, Pistocchi S, Redjem H, Drouineau J, van Vemde G, Neau JP, Godeneche G, Lamy M, Marsac E, Velasco S, Clavelou P, Chabert E, Bourgois N, Cornut-Chauvinc C, Ferrier A, de Ridder A, Gabrillargues J, Jean B, Marques AR, Vitello N, Detante O, Barbieux M, Boubagra K, Favre Wiki I, Garambois K, Tahon F, Greebe P, Ashok V, Voguet C, Coskun O, Guedin P, Rodesch G, Lapergue B, Bourdain F, Evrard S, Graveleau P, Decroix JP, de Bont-Stikkelbroeck J, Wang A, Sellal F, Ahle G, Carelli G, Dugay MH, Gaultier C, Lebedinsky AP, Lita L, Musacchio RM, Renglewicz-Destuynder C, de Meris J, Tournade A, Vuillemet F, Montoro FM, Mounayer C, Faugeras F, Gimenez L, Labach C, Lautrette G, Denier C, Saliou G, Janssen K, Chassin O, Dussaule C, Melki E, Ozanne A, Puccinelli F, Sachet M, Sarov M, Bonneville JF, Moulin T, Biondi A, Struijk W, De Bustos Medeiros E, Vuillier F, Courtheoux P, Viader F, Apoil-Brissard M, Bataille M, Bonnet AL, Cogez J, Kazemi A, Touze E, Licher S, Leclerc X, Leys D, Aggour M, Aguettaz P, Bodenant M, Cordonnier C, Deplanque D, Girot M, Henon H, Kalsoum E, Boodt N, Lucas C, Pruvo JP, Zuniga P, Bonafé A, Arquizan C, Costalat V, Machi P, Mourand I, Riquelme C, Bounolleau P, Ros A, Arteaga C, Faivre A, Bintner M, Tournebize P, Charlin C, Darcel F, Gauthier-Lasalarie P, Jeremenko M, Mouton S, Zerlauth JB, Venema E, Lamy C, Hervé D, Hassan H, Gaston A, Barral FG, Garnier P, Beaujeux R, Wolff V, Herbreteau D, Debiais S, Slokkers I, Murray A, Ford G, Muir KW, White P, Brown MM, Clifton A, Freeman J, Ford I, Markus H, Wardlaw J, Ganpat RJ, Lees KR, Molyneux A, Robinson T, Lewis S, Norrie J, Robertson F, Perry R, Dixit A, Cloud G, Clifton A, Mulder M, Madigan J, Roffe C, Nayak S, Lobotesis K, Smith C, Herwadkar A, Kandasamy N, Goddard T, Bamford J, Subramanian G, Saiedie N, Lenthall R, Littleton E, Lamin S, Storey K, Ghatala R, Banaras A, Aeron-Thomas J, Hazel B, Maguire H, Veraque E, Heshmatollah A, Harrison L, Keshvara R, Cunningham J, Schipperen S, Vinken S, van Boxtel T, Koets J, Boers M, Santos E, Borst J, Jansen I, Kappelhof M, Lucas M, Geuskens R, Barros RS, Dobbe R, Csizmadia M, Hill MD, Goyal M, Demchuk AM, Menon BK, Eesa M, Ryckborst KJ, Wright MR, Kamal NR, Andersen L, Randhawa PA, Stewart T, Patil S, Minhas P, Almekhlafi M, Mishra S, Clement F, Sajobi T, Shuaib A, Montanera WJ, Roy D, Silver FL, Jovin TG, Frei DF, Sapkota B, Rempel JL, Thornton J, Williams D, Tampieri D, Poppe AY, Dowlatshahi D, Wong JH, Mitha AP, Subramaniam S, Hull G, Lowerison MW, Sajobi T, Salluzzi M, Wright MR, Maxwell M, Lacusta S, Drupals E, Armitage K, Barber PA, Smith EE, Morrish WF, Coutts SB, Derdeyn C, Demaerschalk B, Yavagal D, Martin R, Brant R, Yu Y, Willinsky RA, Montanera WJ, Weill A, Kenney C, Aram H, Stewart T, Stys PK, Watson TW, Klein G, Pearson D, Couillard P, Trivedi A, Singh D, Klourfeld E, Imoukhuede O, Nikneshan D, Blayney S, Reddy R, Choi P, Horton M, Musuka T, Dubuc V, Field TS, Desai J, Adatia S, Alseraya A, Nambiar V, van Dijk R, Wong JH, Mitha AP, Morrish WF, Eesa M, Newcommon NJ, Shuaib A, Schwindt B, Butcher KS, Jeerakathil T, Buck B, Khan K, Naik SS, Emery DJ, Owen RJ, Kotylak TB, Ashforth RA, Yeo TA, McNally D, Siddiqui M, Saqqur M, Hussain D, Kalashyan H, Manosalva A, Kate M, Gioia L, Hasan S, Mohammad A, Muratoglu M, Williams D, Thornton J, Cullen A, Brennan P, O'Hare A, Looby S, Hyland D, Duff S, McCusker M, Hallinan B, Lee S, McCormack J, Moore A, O'Connor M, Donegan C, Brewer L, Martin A, Murphy S, O'Rourke K, Smyth S, Kelly P, Lynch T, Daly T, O'Brien P, O'Driscoll A, Martin M, Daly T, Collins R, Coughlan T, McCabe D, Murphy S, O'Neill D, Mulroy M, Lynch O, Walsh T, O'Donnell M, Galvin T, Harbison J, McElwaine P, Mulpeter K, McLoughlin C, Reardon M, Harkin E, Dolan E, Watts M, Cunningham N, Fallon C, Gallagher S, Cotter P, Crowe M, Doyle R, Noone I, Lapierre M, Coté VA, Lanthier S, Odier C, Durocher A, Raymond J, Weill A, Daneault N, Deschaintre Y, Jankowitz B, Baxendell L, Massaro L, Jackson-Graves C, Decesare S, Porter P, Armbruster K, Adams A, Billigan J, Oakley J, Ducruet A, Jadhav A, Giurgiutiu DV, Aghaebrahim A, Reddy V, Hammer M, Starr M, Totoraitis V, Wechsler L, Streib S, Rangaraju S, Campbell D, Rocha M, Gulati D, Silver FL, Krings T, Kalman L, Cayley A, Williams J, Stewart T, Wiegner R, Casaubon LK, Jaigobin C, del Campo JM, Elamin E, Schaafsma JD, Willinsky RA, Agid R, Farb R, ter Brugge K, Sapkoda BL, Baxter BW, Barton K, Knox A, Porter A, Sirelkhatim A, Devlin T, Dellinger C, Pitiyanuvath N, Patterson J, Nichols J, Quarfordt S, Calvert J, Hawk H, Fanale C, Frei DF, Bitner A, Novak A, Huddle D, Bellon R, Loy D, Wagner J, Chang I, Lampe E, Spencer B, Pratt R, Bartt R, Shine S, Dooley G, Nguyen T, Whaley M, McCarthy K, Teitelbaum J, Tampieri D, Poon W, Campbell N, Cortes M, Dowlatshahi D, Lum C, Shamloul R, Robert S, Stotts G, Shamy M, Steffenhagen N, Blacquiere D, Hogan M, AlHazzaa M, Basir G, Lesiuk H, Iancu D, Santos M, Choe H, Weisman DC, Jonczak K, Blue-Schaller A, Shah Q, MacKenzie L, Klein B, Kulandaivel K, Kozak O, Gzesh DJ, Harris LJ, Khoury JS, Mandzia J, Pelz D, Crann S, Fleming L, Hesser K, Beauchamp B, Amato-Marzialli B, Boulton M, Lopez-Ojeda P, Sharma M, Lownie S, Chan R, Swartz R, Howard P, Golob D, Gladstone D, Boyle K, Boulos M, Hopyan J, Yang V, Da Costa L, Holmstedt CA, Turk AS, Navarro R, Jauch E, Ozark S, Turner R, Phillips S, Shankar J, Jarrett J, Gubitz G, Maloney W, Vandorpe R, Schmidt M, Heidenreich J, Hunter G, Kelly M, Whelan R, Peeling L, Burns PA, Hunter A, Wiggam I, Kerr E, Watt M, Fulton A, Gordon P, Rennie I, Flynn P, Smyth G, O'Leary S, Gentile N, Linares G, McNelis P, Erkmen K, Katz P, Azizi A, Weaver M, Jungreis C, Faro S, Shah P, Reimer H, Kalugdan V, Saposnik G, Bharatha A, Li Y, Kostyrko P, Santos M, Marotta T, Montanera W, Sarma D, Selchen D, Spears J, Heo JH, Jeong K, Kim DJ, Kim BM, Kim YD, Song D, Lee KJ, Yoo J, Bang OY, Rho S, Lee J, Jeon P, Kim KH, Cha J, Kim SJ, Ryoo S, Lee MJ, Sohn SI, Kim CH, Ryu HG, Hong JH, Chang HW, Lee CY, Rha J, Davis SM, Donnan GA, Campbell BCV, Mitchell PJ, Churilov L, Yan B, Dowling R, Yassi N, Oxley TJ, Wu TY, Silver G, McDonald A, McCoy R, Kleinig TJ, Scroop R, Dewey HM, Simpson M, Brooks M, Coulton B, Krause M, Harrington TJ, Steinfort B, Faulder K, Priglinger M, Day S, Phan T, Chong W, Holt M, Chandra RV, Ma H, Young D, Wong K, Wijeratne T, Tu H, Mackay E, Celestino S, Bladin CF, Loh PS, Gilligan A, Ross Z, Coote S, Frost T, Parsons MW, Miteff F, Levi CR, Ang T, Spratt N, Kaauwai L, Badve M, Rice H, de Villiers L, Barber PA, McGuinness B, Hope A, Moriarty M, Bennett P, Wong A, Coulthard A, Lee A, Jannes J, Field D, Sharma G, Salinas S, Cowley E, Snow B, Kolbe J, Stark R, King J, Macdonnell R, Attia J, D'Este C, Saver JL, Goyal M, Diener HC, Levy EI, Bonafé A, Mendes Pereira V, Jahan R, Albers GW, Cognard C, Cohen DJ, Hacke W, Jansen O, Jovin TG, Mattle HP, Nogueira RG, Siddiqui AH, Yavagal DR, von Kummer R, Smith W, Turjman F, Hamilton S, Chiacchierini R, Amar A, Sanossian N, Loh Y, Devlin T, Baxter B, Hawk H, Sapkota B, Quarfordt S, Sirelkhatim A, Dellinger C, Barton K, Reddy VK, Ducruet A, Jadhav A, Horev A, Giurgiutiu DV, Totoraitis V, Hammer M, Jankowitz B, Wechsler L, Rocha M, Gulati D, Campbell D, Star M, Baxendell L, Oakley J, Siddiqui A, Hopkins LN, Snyder K, Sawyer R, Hall S, Costalat V, Riquelme C, Machi P, Omer E, Arquizan C, Mourand I, Charif M, Ayrignac X, Menjot de Champfleur N, Leboucq N, Gascou G, Moynier M, du Mesnil de Rochemont R, Singer O, Berkefeld J, Foerch C, Lorenz M, Pfeilschifer W, Hattingen E, Wagner M, You SJ, Lescher S, Braun H, Dehkharghani S, Belagaje SR, Anderson A, Lima A, Obideen M, Haussen D, Dharia R, Frankel M, Patel V, Owada K, Saad A, Amerson L, Horn C, Doppelheuer S, Schindler K, Lopes DK, Chen M, Moftakhar R, Anton C, Smreczak M, Carpenter JS, Boo S, Rai A, Roberts T, Tarabishy A, Gutmann L, Brooks C, Brick J, Domico J, Reimann G, Hinrichs K, Becker M, Heiss E, Selle C, Witteler A, Al-Boutros S, Danch MJ, Ranft A, Rohde S, Burg K, Weimar C, Zegarac V, Hartmann C, Schlamann M, Göricke S, Ringlestein A, Wanke I, Mönninghoff C, Dietzold M, Budzik R, Davis T, Eubank G, Hicks WJ, Pema P, Vora N, Mejilla J, Taylor M, Clark W, Rontal A, Fields J, Peterson B, Nesbit G, Lutsep H, Bozorgchami H, Priest R, Ologuntoye O, Barnwell S, Dogan A, Herrick K, Takahasi C, Beadell N, Brown B, Jamieson S, Hussain MS, Russman A, Hui F, Wisco D, Uchino K, Khawaja Z, Katzan I, Toth G, Cheng-Ching E, Bain M, Man S, Farrag A, George P, John S, Shankar L, Drofa A, Dahlgren R, Bauer A, Itreat A, Taqui A, Cerejo R, Richmond A, Ringleb P, Bendszus M, Möhlenbruch M, Reiff T, Amiri H, Purrucker J, Herweh C, Pham M, Menn O, Ludwig I, Acosta I, Villar C, Morgan W, Sombutmai C, Hellinger F, Allen E, Bellew M, Gandhi R, Bonwit E, Aly J, Ecker RD, Seder D, Morris J, Skaletsky M, Belden J, Baker C, Connolly LS, Papanagiotou P, Roth C, Kastrup A, Politi M, Brunner F, Alexandrou M, Merdivan H, Ramsey C, Given II C, Renfrow S, Deshmukh V, Sasadeusz K, Vincent F, Thiesing JT, Putnam J, Bhatt A, Kansara A, Caceves D, Lowenkopf T, Yanase L, Zurasky J, Dancer S, Freeman B, Scheibe-Mirek T, Robison J, Rontal A, Roll J, Clark D, Rodriguez M, Fitzsimmons BFM, Zaidat O, Lynch JR, Lazzaro M, Larson T, Padmore L, Das E, Farrow-Schmidt A, Hassan A, Tekle W, Cate C, Jansen O, Cnyrim C, Wodarg F, Wiese C, Binder A, Riedel C, Rohr A, Lang N, Laufs H, Krieter S, Remonda L, Diepers M, Añon J, Nedeltchev K, Kahles T, Biethahn S, Lindner M, Chang V, Gächter C, Esperon C, Guglielmetti M, Arenillas Lara JF, Martínez Galdámez M, Calleja Sanz AI, Cortijo Garcia E, Garcia Bermejo P, Perez S, Mulero Carrillo P, Crespo Vallejo E, Ruiz Piñero M, Lopez Mesonero L, Reyes Muñoz FJ, Brekenfeld C, Buhk JH, Krützelmann A, Thomalla G, Cheng B, Beck C, Hoppe J, Goebell E, Holst B, Grzyska U, Wortmann G, Starkman S, Duckwiler G, Jahan R, Rao N, Sheth S, Ng K, Noorian A, Szeder V, Nour M, McManus M, Huang J, Tarpley J, Tateshima S, Gonzalez N, Ali L, Liebeskind D, Hinman J, Calderon-Arnulphi M, Liang C, Guzy J, Koch S, DeSousa K, Gordon-Perue G, Haussen D, Elhammady M, Peterson E, Pandey V, Dharmadhikari S, Khandelwal P, Malik A, Pafford R, Gonzalez P, Ramdas K, Andersen G, Damgaard D, Von Weitzel-Mudersbach P, Simonsen C, Ruiz de Morales Ayudarte N, Poulsen M, Sørensen L, Karabegovich S, Hjørringgaard M, Hjort N, Harbo T, Sørensen K, Deshaies E, Padalino D, Swarnkar A, Latorre JG, Elnour E, El-Zammar Z, Villwock M, Farid H, Balgude A, Cross L, Hansen K, Holtmannspötter M, Kondziella D, Hoejgaard J, Taudorf S, Soendergaard H, Wagner A, Cronquist M, Stavngaard T, Cortsen M, Krarup LH, Hyldal T, Haring HP, Guggenberger S, Hamberger M, Trenkler J, Sonnberger M, Nussbaumer K, Dominger C, Bach E, Jagadeesan BD, Taylor R, Kim J, Shea K, Tummala R, Zacharatos H, Sandhu D, Ezzeddine M, Grande A, Hildebrandt D, Miller K, Scherber J, Hendrickson A, Jumaa M, Zaidi S, Hendrickson T, Snyder V, Killer-Oberpfalzer M, Mutzenbach J, Weymayr F, Broussalis E, Stadler K, Jedlitschka A, Malek A, Mueller-Kronast N, Beck P, Martin C, Summers D, Day J, Bettinger I, Holloway W, Olds K, Arkin S, Akhtar N, Boutwell C, Crandall S, Schwartzman M, Weinstein C, Brion B, Prothmann S, Kleine J, Kreiser K, Boeckh-Behrens T, Poppert H, Wunderlich S, Koch ML, Biberacher V, Huberle A, Gora-Stahlberg G, Knier B, Meindl T, Utpadel-Fischler D. Imaging features and safety and efficacy of endovascular stroke treatment: a meta-analysis of individual patient-level data. Lancet Neurol 2018; 17:895-904. [DOI: 10.1016/s1474-4422(18)30242-4] [Citation(s) in RCA: 213] [Impact Index Per Article: 35.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2018] [Revised: 06/11/2018] [Accepted: 06/12/2018] [Indexed: 11/29/2022]
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Rohr A, Hasham H, Frenette A, Ash R, Johnson P, Fahrbach T. Uterine artery pseudoaneurysm haemorrhage requiring semi-urgent caesarean section: a multidisciplinary approach. J OBSTET GYNAECOL 2018; 39:273-274. [PMID: 29884076 DOI: 10.1080/01443615.2018.1451830] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
Affiliation(s)
- Aaron Rohr
- a Department of Radiology , University of Kansas Medical Center , Kansas City , KS , USA
| | - Hasnain Hasham
- a Department of Radiology , University of Kansas Medical Center , Kansas City , KS , USA
| | - Aaron Frenette
- a Department of Radiology , University of Kansas Medical Center , Kansas City , KS , USA
| | - Ryan Ash
- a Department of Radiology , University of Kansas Medical Center , Kansas City , KS , USA
| | - Philip Johnson
- a Department of Radiology , University of Kansas Medical Center , Kansas City , KS , USA
| | - Thomas Fahrbach
- a Department of Radiology , University of Kansas Medical Center , Kansas City , KS , USA
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Juhász J, Lindner T, Riedel C, Margraf NG, Jansen O, Rohr A. Quantitative Phase-Contrast MR Angiography to Measure Hemodynamic Changes in Idiopathic Intracranial Hypertension. AJNR Am J Neuroradiol 2018. [PMID: 29519787 DOI: 10.3174/ajnr.a5571] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
BACKGROUND AND PURPOSE Idiopathic intracranial hypertension is a syndrome of raised intracranial pressure of unknown etiology. Few MR imaging-based studies have investigated arterial and venous blood flow in these patients. Results are inconclusive, and to our knowledge, no comparison of the hemodynamic parameters before and after CSF pressure reduction has been published. The aim of this study was to assess the short-term effects of normalizing CSF pressure on intracranial flow to better understand the pathophysiology of idiopathic intracranial hypertension. MATERIALS AND METHODS In this study, we performed quantitative MR imaging-derived flow measurements of brain-supplying arteries and draining veins/dural sinuses to visualize hemodynamic changes in patients with idiopathic intracranial hypertension before and after therapy by lumbar puncture in comparison with a healthy control group. RESULTS We found differences in patients before and after lumbar puncture in the calculated resistance and pulsatility indices in the superior sagittal sinus. Venous pulsatility showed a negative correlation with CSF pressure in untreated patients. Additionally, there was a trend toward lower flow in the superior sagittal sinus in patients compared with healthy controls. Flow in the internal jugular veins was significantly reduced by lumbar puncture, and the resistance and pulsatility indices differed in patients and controls. The arterial flow was not influenced by pressure normalization. CONCLUSIONS The results of the present study indicate that venous but not arterial blood flow differs in patients compared with controls and that calculating resistance and pulsatility indices may contribute to assessing short-term hemodynamic changes in patients with diagnosed idiopathic intracranial hypertension before and after CSF diversion.
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Affiliation(s)
- J Juhász
- From the Clinic for Radiology and Neuroradiology (J.J., T.L., C.R., O.J., A.R.)
| | - T Lindner
- From the Clinic for Radiology and Neuroradiology (J.J., T.L., C.R., O.J., A.R.)
| | - C Riedel
- From the Clinic for Radiology and Neuroradiology (J.J., T.L., C.R., O.J., A.R.)
| | - N G Margraf
- Clinic for Neurology (N.G.M.), University Hospital Schleswig-Holstein Campus Kiel, Kiel, Germany
| | - O Jansen
- From the Clinic for Radiology and Neuroradiology (J.J., T.L., C.R., O.J., A.R.)
| | - A Rohr
- From the Clinic for Radiology and Neuroradiology (J.J., T.L., C.R., O.J., A.R.).,Neuroradiology Section (A.R.), Vancouver General Hospital, Vancouver, British Columbia, Canada
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Campbell BCV, van Zwam WH, Goyal M, Menon BK, Dippel DWJ, Demchuk AM, Bracard S, White P, Dávalos A, Majoie CBLM, van der Lugt A, Ford GA, de la Ossa NP, Kelly M, Bourcier R, Donnan GA, Roos YBWEM, Bang OY, Nogueira RG, Devlin TG, van den Berg LA, Clarençon F, Burns P, Carpenter J, Berkhemer OA, Yavagal DR, Pereira VM, Ducrocq X, Dixit A, Quesada H, Epstein J, Davis SM, Jansen O, Rubiera M, Urra X, Micard E, Lingsma HF, Naggara O, Brown S, Guillemin F, Muir KW, van Oostenbrugge RJ, Saver JL, Jovin TG, Hill MD, Mitchell PJ, Berkhemer OA, Fransen PSS, Beumer D, van den Berg LA, Lingsma HF, Yoo AJ, Schonewille WJ, Vos JA, Nederkoorn PJ, Wermer MJH, van Walderveen MAA, Staals J, Hofmeijer J, van Oostayen JA, Lycklama à Nijeholt GJ, Boiten J, Brouwer PA, Emmer BJ, de Bruijn SF, van Dijk LC, Kappelle J, Lo RH, van Dijk EJ, de Vries J, de Kort PL, van Rooij WJJ, van den Berg JS, van Hasselt BA, Aerden LA, Dallinga RJ, Visser MC, Bot JC, Vroomen PC, Eshghi O, Schreuder TH, Heijboer RJ, Keizer K, Tielbeek AV, den Hertog HM, Gerrits DG, van den Berg-Vos RM, Karas GB, Steyerberg EW, Flach Z, Marquering HA, Sprengers ME, Jenniskens SF, Beenen LF, van den Berg R, Koudstaal PJ, van Zwam WH, Roos YB, van der Lugt A, van Oostenbrugge RJ, Wakhloo A, Moonis M, Henninger N, Goddeau R, Massari F, Minaeian A, Lozano JD, Ramzan M, Stout C, Patel A, Majoie CB, Tunguturi A, Onteddu S, Carandang R, Howk M, Ribó M, Sanjuan E, Rubiera M, Pagola J, Flores A, Muchada M, Dippel DW, Meler P, Huerga E, Gelabert S, Coscojuela P, Tomasello A, Rodriguez D, Santamarina E, Maisterra O, Boned S, Seró L, Brown MM, Rovira A, Molina CA, Millán M, Muñoz L, Pérez de la Ossa N, Gomis M, Dorado L, López-Cancio E, Palomeras E, Munuera J, Liebig T, García Bermejo P, Remollo S, Castaño C, García-Sort R, Cuadras P, Puyalto P, Hernández-Pérez M, Jiménez M, Martínez-Piñeiro A, Lucente G, Stijnen T, Dávalos A, Chamorro A, Urra X, Obach V, Cervera A, Amaro S, Llull L, Codas J, Balasa M, Navarro J, Andersson T, Ariño H, Aceituno A, Rudilosso S, Renu A, Macho JM, San Roman L, Blasco J, López A, Macías N, Cardona P, Mattle H, Quesada H, Rubio F, Cano L, Lara B, de Miquel MA, Aja L, Serena J, Cobo E, Albers GW, Lees KR, Wahlgren N, Arenillas J, Roberts R, Minhas P, Al-Ajlan F, Salluzzi M, Zimmel L, Patel S, Eesa M, Martí-Fàbregas J, Jankowitz B, van der Heijden E, Serena J, Salvat-Plana M, López-Cancio E, Bracard S, Ducrocq X, Anxionnat R, Baillot PA, Barbier C, Derelle AL, Lacour JC, Ghannouti N, Richard S, Samson Y, Sourour N, Baronnet-Chauvet F, Clarencon F, Crozier S, Deltour S, Di Maria F, Le Bouc R, Leger A, Fleitour N, Mutlu G, Rosso C, Szatmary Z, Yger M, Zavanone C, Bakchine S, Pierot L, Caucheteux N, Estrade L, Kadziolka K, Hooijenga I, Leautaud A, Renkes C, Serre I, Desal H, Guillon B, Boutoleau-Bretonniere C, Daumas-Duport B, De Gaalon S, Derkinderen P, Evain S, Puppels C, Herisson F, Laplaud DA, Lebouvier T, Lintia-Gaultier A, Pouclet-Courtemanche H, Rouaud T, Rouaud Jaffrenou V, Schunck A, Sevin-Allouet M, Toulgoat F, Pellikaan W, Wiertlewski S, Gauvrit JY, Ronziere T, Cahagne V, Ferre JC, Pinel JF, Raoult H, Mas JL, Meder JF, Al Najjar-Carpentier AA, Geerling A, Birchenall J, Bodiguel E, Calvet D, Domigo V, Godon-Hardy S, Guiraud V, Lamy C, Majhadi L, Morin L, Naggara O, Lindl-Velema A, Trystram D, Turc G, Berge J, Sibon I, Menegon P, Barreau X, Rouanet F, Debruxelles S, Kazadi A, Renou P, van Vemde G, Fleury O, Pasco-Papon A, Dubas F, Caroff J, Godard Ducceschi S, Hamon MA, Lecluse A, Marc G, Giroud M, Ricolfi F, de Ridder A, Bejot Y, Chavent A, Gentil A, Kazemi A, Osseby GV, Voguet C, Mahagne MH, Sedat J, Chau Y, Suissa L, Greebe P, Lachaud S, Houdart E, Stapf C, Buffon Porcher F, Chabriat H, Guedin P, Herve D, Jouvent E, Mawet J, Saint-Maurice JP, de Bont-Stikkelbroeck J, Schneble HM, Turjman F, Nighoghossian N, Berhoune NN, Bouhour F, Cho TH, Derex L, Felix S, Gervais-Bernard H, Gory B, de Meris J, Manera L, Mechtouff L, Ritzenthaler T, Riva R, Salaris Silvio F, Tilikete C, Blanc R, Obadia M, Bartolini MB, Gueguen A, Janssen K, Piotin M, Pistocchi S, Redjem H, Drouineau J, Neau JP, Godeneche G, Lamy M, Marsac E, Velasco S, Clavelou P, Struijk W, Chabert E, Bourgois N, Cornut-Chauvinc C, Ferrier A, Gabrillargues J, Jean B, Marques AR, Vitello N, Detante O, Barbieux M, Licher S, Boubagra K, Favre Wiki I, Garambois K, Tahon F, Ashok V, Voguet C, Coskun O, Guedin P, Rodesch G, Lapergue B, Boodt N, Bourdain F, Evrard S, Graveleau P, Decroix JP, Wang A, Sellal F, Ahle G, Carelli G, Dugay MH, Gaultier C, Ros A, Lebedinsky AP, Lita L, Musacchio RM, Renglewicz-Destuynder C, Tournade A, Vuillemet F, Montoro FM, Mounayer C, Faugeras F, Gimenez L, Venema E, Labach C, Lautrette G, Denier C, Saliou G, Chassin O, Dussaule C, Melki E, Ozanne A, Puccinelli F, Sachet M, Slokkers I, Sarov M, Bonneville JF, Moulin T, Biondi A, De Bustos Medeiros E, Vuillier F, Courtheoux P, Viader F, Apoil-Brissard M, Bataille M, Ganpat RJ, Bonnet AL, Cogez J, Kazemi A, Touze E, Leclerc X, Leys D, Aggour M, Aguettaz P, Bodenant M, Cordonnier C, Mulder M, Deplanque D, Girot M, Henon H, Kalsoum E, Lucas C, Pruvo JP, Zuniga P, Bonafé A, Arquizan C, Costalat V, Saiedie N, Machi P, Mourand I, Riquelme C, Bounolleau P, Arteaga C, Faivre A, Bintner M, Tournebize P, Charlin C, Darcel F, Heshmatollah A, Gauthier-Lasalarie P, Jeremenko M, Mouton S, Zerlauth JB, Lamy C, Hervé D, Hassan H, Gaston A, Barral FG, Garnier P, Schipperen S, Beaujeux R, Wolff V, Herbreteau D, Debiais S, Murray A, Ford G, Muir KW, White P, Brown MM, Clifton A, Vinken S, Freeman J, Ford I, Markus H, Wardlaw J, Lees KR, Molyneux A, Robinson T, Lewis S, Norrie J, Robertson F, van Boxtel T, Perry R, Dixit A, Cloud G, Clifton A, Madigan J, Roffe C, Nayak S, Lobotesis K, Smith C, Herwadkar A, Koets J, Kandasamy N, Goddard T, Bamford J, Subramanian G, Lenthall R, Littleton E, Lamin S, Storey K, Ghatala R, Banaras A, Boers M, Aeron-Thomas J, Hazel B, Maguire H, Veraque E, Harrison L, Keshvara R, Cunningham J, Santos E, Borst J, Jansen I, Kappelhof M, Lucas M, Geuskens R, Barros RS, Dobbe R, Csizmadia M, Hill MD, Goyal M, Demchuk AM, Menon BK, Eesa M, Ryckborst KJ, Wright MR, Kamal NR, Andersen L, Randhawa PA, Stewart T, Patil S, Minhas P, Almekhlafi M, Mishra S, Clement F, Sajobi T, Shuaib A, Montanera WJ, Roy D, Silver FL, Jovin TG, Frei DF, Sapkota B, Rempel JL, Thornton J, Williams D, Tampieri D, Poppe AY, Dowlatshahi D, Wong JH, Mitha AP, Subramaniam S, Hull G, Lowerison MW, Sajobi T, Salluzzi M, Wright MR, Maxwell M, Lacusta S, Drupals E, Armitage K, Barber PA, Smith EE, Morrish WF, Coutts SB, Derdeyn C, Demaerschalk B, Yavagal D, Martin R, Brant R, Yu Y, Willinsky RA, Montanera WJ, Weill A, Kenney C, Aram H, Stewart T, Stys PK, Watson TW, Klein G, Pearson D, Couillard P, Trivedi A, Singh D, Klourfeld E, Imoukhuede O, Nikneshan D, Blayney S, Reddy R, Choi P, Horton M, Musuka T, Dubuc V, Field TS, Desai J, Adatia S, Alseraya A, Nambiar V, van Dijk R, Wong JH, Mitha AP, Morrish WF, Eesa M, Newcommon NJ, Shuaib A, Schwindt B, Butcher KS, Jeerakathil T, Buck B, Khan K, Naik SS, Emery DJ, Owen RJ, Kotylak TB, Ashforth RA, Yeo TA, McNally D, Siddiqui M, Saqqur M, Hussain D, Kalashyan H, Manosalva A, Kate M, Gioia L, Hasan S, Mohammad A, Muratoglu M, Williams D, Thornton J, Cullen A, Brennan P, O'Hare A, Looby S, Hyland D, Duff S, McCusker M, Hallinan B, Lee S, McCormack J, Moore A, O'Connor M, Donegan C, Brewer L, Martin A, Murphy S, O'Rourke K, Smyth S, Kelly P, Lynch T, Daly T, O'Brien P, O'Driscoll A, Martin M, Daly T, Collins R, Coughlan T, McCabe D, Murphy S, O'Neill D, Mulroy M, Lynch O, Walsh T, O'Donnell M, Galvin T, Harbison J, McElwaine P, Mulpeter K, McLoughlin C, Reardon M, Harkin E, Dolan E, Watts M, Cunningham N, Fallon C, Gallagher S, Cotter P, Crowe M, Doyle R, Noone I, Lapierre M, Coté VA, Lanthier S, Odier C, Durocher A, Raymond J, Weill A, Daneault N, Deschaintre Y, Jankowitz B, Baxendell L, Massaro L, Jackson-Graves C, Decesare S, Porter P, Armbruster K, Adams A, Billigan J, Oakley J, Ducruet A, Jadhav A, Giurgiutiu DV, Aghaebrahim A, Reddy V, Hammer M, Starr M, Totoraitis V, Wechsler L, Streib S, Rangaraju S, Campbell D, Rocha M, Gulati D, Silver FL, Krings T, Kalman L, Cayley A, Williams J, Stewart T, Wiegner R, Casaubon LK, Jaigobin C, del Campo JM, Elamin E, Schaafsma JD, Willinsky RA, Agid R, Farb R, ter Brugge K, Sapkoda BL, Baxter BW, Barton K, Knox A, Porter A, Sirelkhatim A, Devlin T, Dellinger C, Pitiyanuvath N, Patterson J, Nichols J, Quarfordt S, Calvert J, Hawk H, Fanale C, Frei DF, Bitner A, Novak A, Huddle D, Bellon R, Loy D, Wagner J, Chang I, Lampe E, Spencer B, Pratt R, Bartt R, Shine S, Dooley G, Nguyen T, Whaley M, McCarthy K, Teitelbaum J, Tampieri D, Poon W, Campbell N, Cortes M, Dowlatshahi D, Lum C, Shamloul R, Robert S, Stotts G, Shamy M, Steffenhagen N, Blacquiere D, Hogan M, AlHazzaa M, Basir G, Lesiuk H, Iancu D, Santos M, Choe H, Weisman DC, Jonczak K, Blue-Schaller A, Shah Q, MacKenzie L, Klein B, Kulandaivel K, Kozak O, Gzesh DJ, Harris LJ, Khoury JS, Mandzia J, Pelz D, Crann S, Fleming L, Hesser K, Beauchamp B, Amato-Marzialli B, Boulton M, Lopez- Ojeda P, Sharma M, Lownie S, Chan R, Swartz R, Howard P, Golob D, Gladstone D, Boyle K, Boulos M, Hopyan J, Yang V, Da Costa L, Holmstedt CA, Turk AS, Navarro R, Jauch E, Ozark S, Turner R, Phillips S, Shankar J, Jarrett J, Gubitz G, Maloney W, Vandorpe R, Schmidt M, Heidenreich J, Hunter G, Kelly M, Whelan R, Peeling L, Burns PA, Hunter A, Wiggam I, Kerr E, Watt M, Fulton A, Gordon P, Rennie I, Flynn P, Smyth G, O'Leary S, Gentile N, Linares G, McNelis P, Erkmen K, Katz P, Azizi A, Weaver M, Jungreis C, Faro S, Shah P, Reimer H, Kalugdan V, Saposnik G, Bharatha A, Li Y, Kostyrko P, Santos M, Marotta T, Montanera W, Sarma D, Selchen D, Spears J, Heo JH, Jeong K, Kim DJ, Kim BM, Kim YD, Song D, Lee KJ, Yoo J, Bang OY, Rho S, Lee J, Jeon P, Kim KH, Cha J, Kim SJ, Ryoo S, Lee MJ, Sohn SI, Kim CH, Ryu HG, Hong JH, Chang HW, Lee CY, Rha J, Davis SM, Donnan GA, Campbell BCV, Mitchell PJ, Churilov L, Yan B, Dowling R, Yassi N, Oxley TJ, Wu TY, Silver G, McDonald A, McCoy R, Kleinig TJ, Scroop R, Dewey HM, Simpson M, Brooks M, Coulton B, Krause M, Harrington TJ, Steinfort B, Faulder K, Priglinger M, Day S, Phan T, Chong W, Holt M, Chandra RV, Ma H, Young D, Wong K, Wijeratne T, Tu H, Mackay E, Celestino S, Bladin CF, Loh PS, Gilligan A, Ross Z, Coote S, Frost T, Parsons MW, Miteff F, Levi CR, Ang T, Spratt N, Kaauwai L, Badve M, Rice H, de Villiers L, Barber PA, McGuinness B, Hope A, Moriarty M, Bennett P, Wong A, Coulthard A, Lee A, Jannes J, Field D, Sharma G, Salinas S, Cowley E, Snow B, Kolbe J, Stark R, King J, Macdonnell R, Attia J, D'Este C, Saver JL, Goyal M, Diener HC, Levy EI, Bonafé A, Mendes Pereira V, Jahan R, Albers GW, Cognard C, Cohen DJ, Hacke W, Jansen O, Jovin TG, Mattle HP, Nogueira RG, Siddiqui AH, Yavagal DR, von Kummer R, Smith W, Turjman F, Hamilton S, Chiacchierini R, Amar A, Sanossian N, Loh Y, Devlin T, Baxter B, Hawk H, Sapkota B, Quarfordt S, Sirelkhatim A, Dellinger C, Barton K, Reddy VK, Ducruet A, Jadhav A, Horev A, Giurgiutiu DV, Totoraitis V, Hammer M, Jankowitz B, Wechsler L, Rocha M, Gulati D, Campbell D, Star M, Baxendell L, Oakley J, Siddiqui A, Hopkins LN, Snyder K, Sawyer R, Hall S, Costalat V, Riquelme C, Machi P, Omer E, Arquizan C, Mourand I, Charif M, Ayrignac X, Menjot de Champfleur N, Leboucq N, Gascou G, Moynier M, du Mesnil de Rochemont R, Singer O, Berkefeld J, Foerch C, Lorenz M, Pfeilschifer W, Hattingen E, Wagner M, You SJ, Lescher S, Braun H, Dehkharghani S, Belagaje SR, Anderson A, Lima A, Obideen M, Haussen D, Dharia R, Frankel M, Patel V, Owada K, Saad A, Amerson L, Horn C, Doppelheuer S, Schindler K, Lopes DK, Chen M, Moftakhar R, Anton C, Smreczak M, Carpenter JS, Boo S, Rai A, Roberts T, Tarabishy A, Gutmann L, Brooks C, Brick J, Domico J, Reimann G, Hinrichs K, Becker M, Heiss E, Selle C, Witteler A, Al-Boutros S, Danch MJ, Ranft A, Rohde S, Burg K, Weimar C, Zegarac V, Hartmann C, Schlamann M, Göricke S, Ringlestein A, Wanke I, Mönninghoff C, Dietzold M, Budzik R, Davis T, Eubank G, Hicks WJ, Pema P, Vora N, Mejilla J, Taylor M, Clark W, Rontal A, Fields J, Peterson B, Nesbit G, Lutsep H, Bozorgchami H, Priest R, Ologuntoye O, Barnwell S, Dogan A, Herrick K, Takahasi C, Beadell N, Brown B, Jamieson S, Hussain MS, Russman A, Hui F, Wisco D, Uchino K, Khawaja Z, Katzan I, Toth G, Cheng-Ching E, Bain M, Man S, Farrag A, George P, John S, Shankar L, Drofa A, Dahlgren R, Bauer A, Itreat A, Taqui A, Cerejo R, Richmond A, Ringleb P, Bendszus M, Möhlenbruch M, Reiff T, Amiri H, Purrucker J, Herweh C, Pham M, Menn O, Ludwig I, Acosta I, Villar C, Morgan W, Sombutmai C, Hellinger F, Allen E, Bellew M, Gandhi R, Bonwit E, Aly J, Ecker RD, Seder D, Morris J, Skaletsky M, Belden J, Baker C, Connolly LS, Papanagiotou P, Roth C, Kastrup A, Politi M, Brunner F, Alexandrou M, Merdivan H, Ramsey C, Given II C, Renfrow S, Deshmukh V, Sasadeusz K, Vincent F, Thiesing JT, Putnam J, Bhatt A, Kansara A, Caceves D, Lowenkopf T, Yanase L, Zurasky J, Dancer S, Freeman B, Scheibe-Mirek T, Robison J, Rontal A, Roll J, Clark D, Rodriguez M, Fitzsimmons BFM, Zaidat O, Lynch JR, Lazzaro M, Larson T, Padmore L, Das E, Farrow-Schmidt A, Hassan A, Tekle W, Cate C, Jansen O, Cnyrim C, Wodarg F, Wiese C, Binder A, Riedel C, Rohr A, Lang N, Laufs H, Krieter S, Remonda L, Diepers M, Añon J, Nedeltchev K, Kahles T, Biethahn S, Lindner M, Chang V, Gächter C, Esperon C, Guglielmetti M, Arenillas Lara JF, Martínez Galdámez M, Calleja Sanz AI, Cortijo Garcia E, Garcia Bermejo P, Perez S, Mulero Carrillo P, Crespo Vallejo E, Ruiz Piñero M, Lopez Mesonero L, Reyes Muñoz FJ, Brekenfeld C, Buhk JH, Krützelmann A, Thomalla G, Cheng B, Beck C, Hoppe J, Goebell E, Holst B, Grzyska U, Wortmann G, Starkman S, Duckwiler G, Jahan R, Rao N, Sheth S, Ng K, Noorian A, Szeder V, Nour M, McManus M, Huang J, Tarpley J, Tateshima S, Gonzalez N, Ali L, Liebeskind D, Hinman J, Calderon-Arnulphi M, Liang C, Guzy J, Koch S, DeSousa K, Gordon-Perue G, Haussen D, Elhammady M, Peterson E, Pandey V, Dharmadhikari S, Khandelwal P, Malik A, Pafford R, Gonzalez P, Ramdas K, Andersen G, Damgaard D, Von Weitzel-Mudersbach P, Simonsen C, Ruiz de Morales Ayudarte N, Poulsen M, Sørensen L, Karabegovich S, Hjørringgaard M, Hjort N, Harbo T, Sørensen K, Deshaies E, Padalino D, Swarnkar A, Latorre JG, Elnour E, El-Zammar Z, Villwock M, Farid H, Balgude A, Cross L, Hansen K, Holtmannspötter M, Kondziella D, Hoejgaard J, Taudorf S, Soendergaard H, Wagner A, Cronquist M, Stavngaard T, Cortsen M, Krarup LH, Hyldal T, Haring HP, Guggenberger S, Hamberger M, Trenkler J, Sonnberger M, Nussbaumer K, Dominger C, Bach E, Jagadeesan BD, Taylor R, Kim J, Shea K, Tummala R, Zacharatos H, Sandhu D, Ezzeddine M, Grande A, Hildebrandt D, Miller K, Scherber J, Hendrickson A, Jumaa M, Zaidi S, Hendrickson T, Snyder V, Killer-Oberpfalzer M, Mutzenbach J, Weymayr F, Broussalis E, Stadler K, Jedlitschka A, Malek A, Mueller-Kronast N, Beck P, Martin C, Summers D, Day J, Bettinger I, Holloway W, Olds K, Arkin S, Akhtar N, Boutwell C, Crandall S, Schwartzman M, Weinstein C, Brion B, Prothmann S, Kleine J, Kreiser K, Boeckh-Behrens T, Poppert H, Wunderlich S, Koch ML, Biberacher V, Huberle A, Gora-Stahlberg G, Knier B, Meindl T, Utpadel-Fischler D, Zech M, Kowarik M, Seifert C, Schwaiger B, Puri A, Hou S. Effect of general anaesthesia on functional outcome in patients with anterior circulation ischaemic stroke having endovascular thrombectomy versus standard care: a meta-analysis of individual patient data. Lancet Neurol 2018; 17:47-53. [DOI: 10.1016/s1474-4422(17)30407-6] [Citation(s) in RCA: 129] [Impact Index Per Article: 21.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2017] [Revised: 10/05/2017] [Accepted: 10/11/2017] [Indexed: 10/18/2022]
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Rohr A, Hill J, Hunt S, Meek L, Ash R, Fishback S, Miller K. IMPACT OF CASE-BASED RADIOLOGY EDUCATION ON FIRST-YEAR MEDICAL STUDENTS KNOWLEDGE, PERCEPTIONS, AND INTERESTS IN THE FIELD OF RADIOLOGY. Australas Med J 2017. [DOI: 10.21767/amj.2017.2898] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Rohr A, Wick J, Hill J, Walter C, Irani N, Best S, Miller K, Ash R. Reducing radiation exposure with iterative reconstruction: an inter- and intra-scanner analysis. J Radiol Prot 2017; 37:N42-N48. [PMID: 28936988 DOI: 10.1088/1361-6498/aa8e54] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Our purpose in this study was to compare delivered radiation exposure via computed tomography dose index volume (CTDIvol) and dose length production (DLP) measurements from computed tomography (CT) examinations performed on scanners with and without image-quality enhancing iterative reconstruction (IR) software. A retrospective analysis was conducted on randomly selected chest, abdomen, and/or pelvis CT examinations from three different scanners from 1 January 2013 to 31 December 2013. CTDIvol and DLP measurements were obtained from two CT scanners with and one CT scanner without IR software. To evaluate inter-scanner variability, we compared measurements from the same model CT scanners, one with and one without IR software. To evaluate intra-scanner variability, we compared measurements between two scanners with IR software from different manufacturers. CT scanners with IR software aided in the overall reduction in radiation exposure, measured as CTDIvol by 30% and DLP by 39% when compared to a scanner without IR. There was no significant difference in CTDlvol or DLP measurements across different manufacturers with IR software. As a result, IR software significantly decreased the radiation exposure to patients, but there were no differences in radiation measurements across CT manufacturers with IR software.
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Affiliation(s)
- Aaron Rohr
- University of Kansas Medical Center, Department of Radiology, 3901 Rainbow Boulevard, Mail Stop 4032, Kansas City, KS 66160, United States of America
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Rohr A, Ash R, Vadaparampil J, Hill J, Wetzel L. Disseminated cat-scratch disease in an adult with selective IgA deficiency. Radiol Case Rep 2016; 11:54-7. [PMID: 27257449 PMCID: PMC4878957 DOI: 10.1016/j.radcr.2016.02.016] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2016] [Accepted: 02/28/2016] [Indexed: 11/24/2022] Open
Abstract
A 51-year-old man with history of undiagnosed pulmonary nodules 4 years prior, presented with right-sided chest pain. Acute cardiac workup was negative, and a chest computed tomography examination demonstrated marked improvement in bilateral pulmonary nodules. A concordant abdominal computed tomography examination showed new subcentimeter hypodense lesions throughout the liver and spleen, mild progressive abdominopelvic lymphadenopathy, and new small lytic lesions of T11 and L4 vertebrae. A positron emission tomography examination demonstrated hypermetabolic activity of these abdominopelvic lesions suggesting metastatic disease. Extensive laboratory workup was negative, aside from IgA deficiency. Eventually, biopsy of a hepatic lesion was performed and compatible with Bartonella species. An elevated Bartonella IgG titer was noted, consistent with Bartonella Hensalae infection, or “cat-scratch disease.” Radiographic findings showed marked improvement after clinically appropriate antibiotic therapy.
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Kreutzer C, Peters S, Schulte DM, Türk K, Wolff S, Rohr A, Kerby T, Riedel C, van Eimeren T, Schreiber S, Laudes M. Hypothalamic inflammation in humans is not reversed by a profound weight loss and an improved insulin sensitivity due to bariatric surgery. DIABETOL STOFFWECHS 2016. [DOI: 10.1055/s-0036-1580757] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Hansen J, Rotermann I, Logoteta J, Herzog F, Rohr A, Rickers C, Attmann T, Kramer H. Neurokognitive Entwicklung und neuroradiologische Auffälligkeiten bei Patienten mit Hypoplastischem Linksherzsyndrom. Thorac Cardiovasc Surg 2015. [DOI: 10.1055/s-0035-1555980] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Margraf NG, Rohr A, Granert O, Hampel J, Drews A, Deuschl G. MRI of lumbar trunk muscles in patients with Parkinson’s disease and camptocormia. J Neurol 2015; 262:1655-64. [DOI: 10.1007/s00415-015-7726-3] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2015] [Revised: 03/25/2015] [Accepted: 03/26/2015] [Indexed: 10/23/2022]
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Meyne JK, Zimmermann PR, Rohr A, Riedel C, Hansen HC, Pulkowski U, Thie A, Holst T, Papengut F, Stingele R, Schepelmann K, Jansen O, Deuschl G, Binder A. Thrombectomy vs. Systemic Thrombolysis in Acute Embolic Stroke with High Clot Burden: A Retrospective Analysis. ROFO-FORTSCHR RONTG 2015; 187:555-60. [PMID: 25831469 DOI: 10.1055/s-0034-1399222] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
PURPOSE The efficacy of i. v. thrombolysis in acute stroke with high clot burden is limited. Successful recanalization is very unlikely if the thrombus length exceeds 7 mm. Thus this retrospective controlled study evaluated the efficacy and safety of neurothrombectomy in the treatment of acute embolic stroke in patients selected by a thrombus length of ≥ 8 mm using the stent retriever Trevo(®) device. MATERIALS AND METHODS 40 patients with acute occlusion of the anterior intracranial arteries with a thrombus length of ≥ 8 mm were treated with neurothrombectomy. We compared the outcome with a historical cohort of 42 patients with a thrombus length of ≥ 8 mm that received i. v. thrombolysis only. Clinical outcome was assessed by modified Rankin scale in both groups at discharge and on day 90. RESULTS Patients did not differ in age, mRS on admission, thrombus length or time from symptom onset to i. v. thrombolysis, but the thrombectomy group had higher NIHSS on admission. Successful recanalization was achieved in 33/40 patients (83 %) with neurothrombectomy. 15 patients received i. v. thrombolysis prior to neurothrombectomy. Median mRS at discharge was 3.5 (1.25 - 5) vs. 5 (4 - 6; p < 0.01) and on day 90 3 (1 - 4) vs. 5 (4 - 6; p < 0.01). Symptomatic hemorrhage occurred in 3 vs. 7 patients. 3 vs. 17 patients died within 90 days (thrombectomy vs. control each). There were only a few intervention-related complications. CONCLUSION Thrombectomy in acute stroke with high clot burden using the Trevo(®) device has a low risk and improved clinical outcome compared to i. v. thrombolysis alone. Treatment selection by a clot length of ≥ 8 mm might be a powerful approach to improve the outcome of mechanical thrombectomy. KEY POINTS • Clot length of ≥ 8 mm might be a valuable criterion for indicating neurothrombectomy. • Thrombolysis only in high clot burden is associated with poor clinical outcome. • Thrombectomy using the Trevo(®) stent retriever is safe and effective.
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Affiliation(s)
- J K Meyne
- Department of Neurology, University Hospital Schleswig-Holstein, Kiel, Germany
| | - P R Zimmermann
- Department of Neurology, University Hospital Schleswig-Holstein, Kiel, Germany
| | - A Rohr
- Department of Radiology and Neuroradiology, University Hospital Schleswig-Holstein, Kiel, Germany
| | - C Riedel
- Department of Radiology and Neuroradiology, University Hospital Schleswig-Holstein, Kiel, Germany
| | - H C Hansen
- Department of Neurology, FEK Neumünster, Germany
| | - U Pulkowski
- Department of Neurology, Imland Klinik, Rendsburg, Germany
| | - A Thie
- Department of Neurology, Klinikum Itzehoe, Germany
| | - T Holst
- Department of Internal Medicine, Klinik Preetz, Germany
| | - F Papengut
- Department of Neurology, University Hospital Schleswig-Holstein, Kiel, Germany
| | - R Stingele
- Department of Neurology, DRK Kliniken Berlin, Berlin, Germany
| | - K Schepelmann
- Department of Neurology, Helios Klinik, Schleswig, Germany
| | - O Jansen
- Department of Radiology and Neuroradiology, University Hospital Schleswig-Holstein, Kiel, Germany
| | - G Deuschl
- Department of Neurology, University Hospital Schleswig-Holstein, Kiel, Germany
| | - A Binder
- Department of Neurology, University Hospital Schleswig-Holstein, Kiel, Germany
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Rohr A. Pseudotumor cerebri und venöse Hypertension. ROFO-FORTSCHR RONTG 2014. [DOI: 10.1055/s-0034-1373348] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Rohr A, Saettele MR, Patel SA, Lawrence CA, Lowe LH. Spectrum of radiological manifestations of paediatric cat-scratch disease. Pediatr Radiol 2012; 42:1380-4. [PMID: 22797536 DOI: 10.1007/s00247-012-2451-x] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/07/2012] [Revised: 05/23/2012] [Accepted: 05/24/2012] [Indexed: 01/27/2023]
Abstract
Cat-scratch disease (CSD) is usually a self-limiting condition that may mimic more serious disorders due to its variable clinical and imaging presentations. Many cases are diagnosed throughout the United States annually, with the majority occurring in children and adolescents who have had contact with a cat, usually in the form of a scratch or bite. This manuscript will discuss the spectrum of radiologic manifestations of CSD emphasising key imaging findings of lymphadenopathy, hepatosplenic lesions, osteomyelitis, discitis, encephalitis, neuroretinitis and cranial neuritis.
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Affiliation(s)
- Aaron Rohr
- University of Kansas School of Medicine, 3550 Rainbow Blvd., Kansas City, KS 66103, USA.
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Weber J, Jansen O, Rohr A, Knauth M, Schramm P, Grand M, Weber W, Loehr C, Doerfler A, Struffert T, Goelit P, Zimmer C, Prothmann S, Boeckh-Behrens T. P-005 A novel three-dimensional (3D) revascularization device: histopathology results from a rabbit model and early clinical experience with the penumbra separator 3D. J Neurointerv Surg 2012. [DOI: 10.1136/neurintsurg-2012-010455b.5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Rohr A, Jensen U, Riedel C, van Baalen A, Fruehauf MC, Bartsch T, Hedderich J, Doerner L, Jansen O. MR imaging of the optic nerve sheath in patients with craniospinal hypotension. AJNR Am J Neuroradiol 2010; 31:1752-7. [PMID: 20522569 DOI: 10.3174/ajnr.a2120] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE Craniospinal hyper- or hypotension leads to morphologic changes in certain intracranial structures. We tested the hypothesis that the amount of CSF in the ONS visible in MR imaging is reduced in patients with CSH. MATERIALS AND METHODS Nineteen patients with CSH were prospectively studied. Three readers assessed the width of the peri-optical CSF rim at 4 different anatomic positions by using coronal STIR sequences from a 3T MR imaging scanner. The height of the pituitary gland was also measured. Results were compared with normal values obtained with the same imaging technique. Qualitative signs of CSH also recorded were engorgement of venous sinuses, dural enhancement, subdural effusion, narrow ventricles, and sagging brain. RESULTS CSF signal intensity surrounding the optic nerves was diminished in at least 2 of the 4 positions used for measurements so that decreased diameters of the ONSs were observed in all patients (sensitivity, 100%; specificity, 97%). The height of the pituitary gland was above normal limits in 12 of 19 patients (sensitivity, 63%; specificity, 97%). Frequencies of qualitative signs of CSH varied from 32% to 81%. CONCLUSIONS The ISSON in patients with CSH is partially or fully collapsed due to reduced CSF content. In comparison with other anatomic markers, this sign showed the highest sensitivity for the diagnosis of patients with CSH in this study.
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Affiliation(s)
- A Rohr
- Department of Neuroradiology, University Clinic Schleswig-Holstein Campus Kiel, Arnold-Heller-Strasse 9, Kiel, Germany.
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Sotnikova A, Entenmann A, van Baalen A, Rohr A, Burdelski M, Stephani U, Krause M. Schwere toxische Enzephalopathie nach Überdosierung von N-Acetylcystein bei der Behandlung einer Paracetamol-Intoxikation. Klin Padiatr 2010. [DOI: 10.1055/s-0030-1261400] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Schmalbach B, Rohr A, Jansen O, Deuschl G, Lang N. CT-Perfusion: ein geeignetes Notfallinstrument zur Diagnostik des nonkonvulsiven Status epilepticus? Akt Neurol 2010. [DOI: 10.1055/s-0030-1248429] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Rohr A. Pseudotumor cerebri und venöse Hypertension. ROFO-FORTSCHR RONTG 2010. [DOI: 10.1055/s-0030-1252493] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Reese JP, Balzer-Geldsetzer M, Dodel R, Becker E, Christopher A, Friedrich H, Kraemer S, Lüer W, Müngersdorf M, Puzich R, Rohr A, Schultes-Platzek I, Siefjediers V, Tiel-Wilck K, Ehret R. Inanspruchnahme medizinischer Leistungen und Versorgungsmuster von Parkinson-Patienten in neurologischen Schwerpunktpraxen in Berlin (NeuroPa-Studie). Akt Neurol 2009. [DOI: 10.1055/s-0029-1238652] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Rohr A, Riedel C, Reimann G, Alfke K, Hedderich J, Jansen O. [Pseudotumor cerebri: quantitative in-vivo measurements of markers of intracranial hypertension]. ROFO-FORTSCHR RONTG 2009; 180:884-90. [PMID: 19238638 DOI: 10.1055/s-2008-1027627] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
PURPOSE Intracranial hypertension can change the morphology of anatomical structures that are critical in the evaluation of pseudotumor syndromes. The purpose of our study was to establish the normal range of such markers of intracranial hypertension and to consider a dependency on sex, age and body-mass index (BMI). MATERIALS AND METHODS 123 persons without signs or symptoms of intracranial hypertension (63 females, 60 males, 18- 86-years-old, mean 49.5 SD17.8 years, mean BMI 25.3 SD42) were prospectively enrolled and MRI was performed at 3T. A STIR sequence in the coronal plane was used to measure the width of the optic nerve, the perioptic fluid rim and the total optic nerve sheath diameter in 4 different locations behind the eyeball. The height and width of the pituitary and Meckel's cave were also measured and the area was calculated. RESULTS The mean width of the optic nerve sheath narrows significantly from anterior (mean 5.3 SD 0.6 mm) to posterior (mean 4.1 SD 0.4 mm), as does the perioptic fluid rim (mean 1.4 SD 0.3 mm vs. mean 1.0 SD 0.2 mm) and--to a lesser extent--the optic nerve itself (mean 2.4 SD 0.4 mm vs. mean 2 SD 0.3 mm, p=0.000 for all). There was no statistically relevant correlation of the width of the optic nerve sheath with age. The coronal area of Meckel's cave was independent of sex, age or BMI (mean 39 SD 9.3 mm2). The height of the pituitary differed little in women (mean 4.4 SD 0.9 mm) and men (mean 4.2 SD 0.8 mm), but we found a significant negative correlation with age in women only (r = -0.38, p = 0.01). CONCLUSION The presented typical values and their deviations serve as a basis for the evaluation of pathologies in patients suspected of having pseudotumor syndrome.
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Affiliation(s)
- A Rohr
- Neuroradiologie, UK-SH Campus Kiel.
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Margraf N, Rohr A, Schulz-Schaeffer W, Wrede A, Eymess A, Jansen O, Brück W, Deuschl G. Kamptokormie beim idiopathischen Parkinson-Syndrom als Ausdruck einer Myopathie. Akt Neurol 2008. [DOI: 10.1055/s-0028-1086603] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Affiliation(s)
- T Bartsch
- Dept. of Neurology, University Hospital Schleswig-Holstein, Kiel, Schittenhelmstr. 10, 24105 Kiel, Germany.
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Rohr A, Bindeballe J, Riedel C, Alfke K, Jansen O. Segmentierungen venöser Phasenkontrastangiographien bei Patienten mit Pseudotumor cerebri. ROFO-FORTSCHR RONTG 2008. [DOI: 10.1055/s-2008-1073721] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Rohr A, Reimann G, Alfke K, Riedel C, Tietke M, Jansen O. Pseudotumor cerebri – was ist normal? Normwerte für indirekte marker bei intrakranieller Hypertension. ROFO-FORTSCHR RONTG 2008. [DOI: 10.1055/s-2008-1073723] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Rohr A, Jansen O. 1-Jahresergebnisse der SPACE Studie. ROFO-FORTSCHR RONTG 2008. [DOI: 10.1055/s-2008-1073319] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Lapierre A, Crespo López-Urrutia JR, Baumann TM, Epp SW, Gonchar A, González Martínez AJ, Liang G, Rohr A, Soria Orts R, Simon MC, Tawara H, Versteegen R, Ullrich J. Compact soft x-ray spectrometer for plasma diagnostics at the Heidelberg Electron Beam Ion Trap. Rev Sci Instrum 2007; 78:123105. [PMID: 18163718 DOI: 10.1063/1.2818808] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
A compact flat-field soft x-ray grazing-incidence grating spectrometer equipped with a cryogenically cooled back-illuminated charge-coupled device camera was built and implemented at the Heidelberg Electron Beam Ion Trap. The instrument spans the spectral region from 1 to 37 nm using two different gratings. In slitless operation mode, it directly images a radiation source, in this case ions confined in an electron beam ion trap, with high efficiency and reaching hereby a resolving power of lambda/Deltalambda approximately =130 at 2 nm and of lambda/Deltalambda approximately =600 at 28 nm. Capable of automatized operation, its low noise and excellent stability make it an ideal instrument not only for spectroscopic diagnostics requiring wide spectral coverage but also for precision wavelength measurements.
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Affiliation(s)
- A Lapierre
- Max-Planck Institut für Kernphysik, Saupfercheckweg 1, D-69117 Heidelberg, Germany
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