1
|
Steffen P, Wentz R, Thaler C, Habermann CR, Zeile M. Single-Center Retrospective Comparative Study Evaluating the Benefit of Computed Tomography Angiography Prior to Prostatic Artery Embolization. Cardiovasc Intervent Radiol 2022; 45:1019-1024. [PMID: 35233661 DOI: 10.1007/s00270-022-03061-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Accepted: 01/13/2022] [Indexed: 12/24/2022]
Abstract
PURPOSE To explore whether a computed tomography angiography (CTA) of the pelvis prior to prostatic artery embolization (PAE) is a beneficial preprocedural planning tool regarding the technical success. MATERIALS AND METHODS Eighty patients with lower urinary tract symptoms treated with PAE were analyzed retrospectively. Forty of these patients received a CTA of the pelvis prior to the procedure (Group A) and were compared to 40 patients who were treated with PAE without prior CT imaging (Group B). Technical success rate, rate of complications, fluoroscopy time (FT), and mean dose area product (DAP) were assessed and compared. All operators performed at least 50 PAE prior to this study. When needed, cone-beam CT (CBCT) was available during intervention. RESULTS Mean age was 68.43 ± 8.30 years in Group A and 70.42 ± 7.11 years in Group B (p = 0.252). Mean body mass index was 26.78 ± 3.73 in Group A and 26.85 ± 3.5 in Group B (p = 0.319). Overall technical success was 96.3%. Bilateral PAE was achieved in 60 patients (75.0%) while unilateral PAE was performed in 17 patients (21.3%). Technical failure (no embolization) occurred in two patients of Group A and one patient of Group B. No statistical significance was seen between groups for technical success rate (p = 1.0). Mean DAP was 10,164 × cm2 ± 3944 cGy × cm2 in Group A and 10,039 × cm2 ± 3761 cGy × cm2 in Group B (p = 0.885). Mean FT was 49.27 ± 22.97 min in Group A and 44.32 ± 17.82 min in Group B (p = 0.285). No intervention-related complications during PAE were reported. CONCLUSION With experienced interventionalists and CBCT available during PAE, preprocedural CTA has no additional benefit for technical outcome.
Collapse
Affiliation(s)
- Paul Steffen
- Department of Diagnostic and Interventional Radiology, Katholisches Marienkrankenhaus, Alfredstrasse 9, 22087, Hamburg, Germany. .,Department of Diagnostic and Interventional Neuroradiology, University Medical Center Hamburg-Eppendorf, Martinistraße 52, 20251, Hamburg, Germany.
| | - Rabea Wentz
- Department of Diagnostic and Interventional Radiology, Katholisches Marienkrankenhaus, Alfredstrasse 9, 22087, Hamburg, Germany
| | - Christian Thaler
- Department of Diagnostic and Interventional Neuroradiology, University Medical Center Hamburg-Eppendorf, Martinistraße 52, 20251, Hamburg, Germany
| | - Christian R Habermann
- Department of Diagnostic and Interventional Radiology, Katholisches Marienkrankenhaus, Alfredstrasse 9, 22087, Hamburg, Germany
| | - Martin Zeile
- Department of Diagnostic and Interventional Radiology, Katholisches Marienkrankenhaus, Alfredstrasse 9, 22087, Hamburg, Germany
| |
Collapse
|
2
|
Abstract
This review presents the current understanding of the etiology, pathogenesis, and how to diagnose and treat osteochondritis dissecans (OCD) at the elbow joint followed by an analysis of particular characteristics and outcomes of the treatment. OCD is seen in patients with open growth plates (juvenile OCD [JOCD] and in adults [AOCD] with closed growth plates [adult OCD). The etiology at smaller joints remains as unclear as for the knee. Mechanical factors (throwing activities [capitulum] seem to play an important role. Clinical symptoms are unspecific. Thus, imaging techniques are most important for the diagnosis. In low-grade and stable lesions, treatment involves rest and different degrees of immobilization until healing. When surgery is necessary, the procedure depends on the OCD stage and on the state of the cartilage. With intact cartilage, retrograde procedures are favorable while with damaged cartilage, several techniques are used. Techniques such as drilling and microfracturing produce a reparative cartilage while other techniques reconstruct the defect with osteochondral grafts or cell-based procedures such as chondrocyte implantation. There is a tendency toward better results when reconstructive procedures for both the bone and cartilage are used. In addition, comorbidities at the joint have to be treated. Severe grades of osteoarthritis are rare.
Collapse
Affiliation(s)
- Juergen Bruns
- Wilhelmsburger Krankenhaus Groß-Sand, Hamburg, Germany,Juergen Bruns, Wilhelmsburger Krankenhaus Gross-Sand, Groß Sand 3, Hamburg, 21107, Germany.
| | | | | |
Collapse
|
3
|
Steffen P, Beyer LS, McDonough R, Thaler C, Faizy T, Fiehler J, Gbadamosi J, Habermann CR, Schönfeld MH. Improved Detectability of Brain Stem Ischemia by Combining Axial and Coronal Diffusion-Weighted Imaging. Stroke 2021; 52:1843-1846. [PMID: 33813862 DOI: 10.1161/strokeaha.120.032457] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
BACKGROUND AND PURPOSE To evaluate the benefit of a coronal diffusion-weighted imaging (DWI) in addition to standard axial DWI for the detection of brain stem infarctions. METHODS A retrospective analysis of patients with symptoms consistent with acute and subacute brain stem infarction who received magnetic resonance imaging, including axial and coronal DWI. Diffusion restrictions were identified by 2 independent raters blinded for the final clinical diagnosis in 3 separate reading steps: axial DWI, coronal DWI, and combined axial and coronal DWI. Lesion location and certainty level were both documented for each reading step. In cases of reader disagreement, an additional consensus reading was performed. RESULTS Two hundred thirty-nine patients were included. Of these, 124 patients (51.9%) were clinically diagnosed with brain stem infarction. Sensitivity, specificity, positive, and negative predictive values were best for combined DWI assessment (90.3%, 99.1%, 99.1%, and 90.5%) compared with axial (85.5%, 94.9%, 94.6%, and 85.8%) and coronal DWI alone (87.9%, 96.5%, 96.5%, and 88.1%). Diffusion restriction on combined DWI was diagnosed in 112/124 patients compared with 106/124 on axial DWI and 109/124 on coronal DWI. Interobserver agreement for the detection of brain stem lesions was the highest in the combined rating step (Cohen κ coefficient=0.94). CONCLUSIONS Coronal DWI sequences might improve the detection rate of brain stem infarction compared with standard axial DWI. The combined coronal and axial DWI provides the best detection rate while minimally increasing scan times.
Collapse
Affiliation(s)
- Paul Steffen
- Department of Diagnostic and Interventional Radiology (P.S., L.-S.B., C.T., T.F., C.R.H.), Marienkrankenhaus Hamburg, Germany.,Department of Diagnostic and Interventional Neuroradiology, University Medical Center Hamburg-Eppendorf, Germany (P.S., R.M., C.T., T.F., J.F., M.H.S.)
| | - Lara-Sophie Beyer
- Department of Diagnostic and Interventional Radiology (P.S., L.-S.B., C.T., T.F., C.R.H.), Marienkrankenhaus Hamburg, Germany
| | - Rosalie McDonough
- Department of Diagnostic and Interventional Neuroradiology, University Medical Center Hamburg-Eppendorf, Germany (P.S., R.M., C.T., T.F., J.F., M.H.S.)
| | - Christian Thaler
- Department of Diagnostic and Interventional Radiology (P.S., L.-S.B., C.T., T.F., C.R.H.), Marienkrankenhaus Hamburg, Germany.,Department of Diagnostic and Interventional Neuroradiology, University Medical Center Hamburg-Eppendorf, Germany (P.S., R.M., C.T., T.F., J.F., M.H.S.)
| | - Tobias Faizy
- Department of Diagnostic and Interventional Radiology (P.S., L.-S.B., C.T., T.F., C.R.H.), Marienkrankenhaus Hamburg, Germany.,Department of Diagnostic and Interventional Neuroradiology, University Medical Center Hamburg-Eppendorf, Germany (P.S., R.M., C.T., T.F., J.F., M.H.S.)
| | - Jens Fiehler
- Department of Diagnostic and Interventional Neuroradiology, University Medical Center Hamburg-Eppendorf, Germany (P.S., R.M., C.T., T.F., J.F., M.H.S.)
| | | | - Christian R Habermann
- Department of Diagnostic and Interventional Radiology (P.S., L.-S.B., C.T., T.F., C.R.H.), Marienkrankenhaus Hamburg, Germany
| | - Michael H Schönfeld
- Department of Diagnostic and Interventional Neuroradiology, University Medical Center Hamburg-Eppendorf, Germany (P.S., R.M., C.T., T.F., J.F., M.H.S.).,Department of Diagnostic and Interventional Radiology, University Hospital Cologne, Germany (M.H.S.)
| |
Collapse
|
4
|
Kovács A, Bücker A, Grimm MO, Habermann CR, Katoh M, Massmann A, Mahnken AH, Meyer BC, Moche M, Reimer P, Teichgräber U, Wacker FK. Position Paper of the German Society for Interventional Radiology (DeGIR) on Prostatic Artery Embolization. ROFO-FORTSCHR RONTG 2020; 192:835-846. [PMID: 32615637 DOI: 10.1055/a-1183-5438] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
BACKGROUND In recent years prostate artery embolization (PAE) evolved into a clinically established minimally invasive endovascular treatment option for lower urinary tract symptoms caused by benign prostate syndrome (BPS). METHODS In this interdisciplinary position paper, initiated by the steering group for research of the German Society for Interventional Radiology (IR), the method of PAE is presented and discussed in the context of current evidence. RESULTS PAE is a safe IR procedure for the treatment of BPS. In terms of symptom relief, measured with the IPSS (International Prostate Symptom Score), the PAE has comparable effect, similar to the historic gold standard, transurethral resection (TUR) of the prostate. With regard to reducing subvesical obstruction PAE is inferior to TUR, but does not limit subsequent surgery. Based on current evidence, PAE is recommended by the British National Institute for Health and Care Excellence as an alternative therapy. The feasibility under local anaesthesia and the preservation of sexual function are important arguments for patients in favour of interventional therapy. Patient selection and therapy concepts require close interdisciplinary collaboration between urologists and radiologists. CONCLUSION Effectiveness and safety of PAE for the treatment of BPS are proven. Further randomized trials should focus on long term outcome and help to identify most suitable indications for PAE. KEY POINTS · PAE, an endovascular procedure, is a patient-friendly, minimally invasive, alternative therapy option of the BPS. · PAE can reduce the symptoms of the lower urinary tract (LUTS), comparable to transurethral resection (TUR). The deobstructive and volume-reducing potential of the PAE is inferior to that of the TUR. · The main advantages of PAE are use of local anesthesia (no general anesthesia required), short patient recovery and maintenance of sexual function, including antegrade ejaculation.. · Based on current evidence PAE should be considered after conservative drug therapy and before TUR.. · The role of PAE in the context of other minimally invasive procedures (MIST) requires further evaluation with an open minded approach towards PAE.. · PAE is carried out by interventional radiologists, usually on a referral basis from urologists, and requires close interdisciplinary cooperation.. CITATION FORMAT · Kovacs A, Bücker A, Grimm M et al. Position Paper of the German Society for Interventional Radiology (DeGIR) on Prostatic Artery Embolization. Fortschr Röntgenstr 2020; 192: 835 - 846.
Collapse
Affiliation(s)
- Attila Kovács
- MediClin Robert Janker Clinic, Clinic of Diagnostic and Interventional Radiology and Neuroradiology, Bonn, Germany
| | - Arno Bücker
- Saarland University Medical Center, Clinic of Diagnostic and Interventional Radiology, Homburg/Saar, Germany
| | | | - Christian R Habermann
- Kath. Marienhospital Hamburg, Department of Diagnostic and Interventional Radiology, Hamburg, Germany
| | - Marcus Katoh
- Helios-Hospital Krefeld, Diagnostic and Interventional Radiology, Krefeld, Germany
| | - Alexander Massmann
- Saarland University Medical Center, Clinic of Diagnostic and Interventional Radiology, Homburg/Saar, Germany
| | - Andreas H Mahnken
- Marburg University Hospital, Clinic of Diagnostic and Interventional Radiology, Marburg, Germany
| | - Bernhard C Meyer
- Hannover Medical School, Department of Diagnostic and Interventional Radiology, Hannover, Germany
| | - Michael Moche
- Helios-Park-Klinikum Leipzig, Department of Interventional Radiology, Leipzig, Germany
| | - Peter Reimer
- Städtisches Klinikum Karlsruhe, Academic teaching hospital of the University of Freiburg, Institute of Diagnostic and Interventional Radiology, Karlsruhe, Germany
| | - Ulf Teichgräber
- Jena University Hospital, Department of Radiology, Jena, Germany
| | - Frank K Wacker
- Hannover Medical School, Department of Diagnostic and Interventional Radiology, Hannover, Germany
| | | |
Collapse
|
5
|
Abstract
PURPOSE To compare outcome and associated complications of ballon- vs. loop-retained devices for radiologically inserted gastrostomy (RIG). METHODS From 2007 to 2011 233 patients (age 63.7 ± 10.6 years) were referred for a RIG because of pharyngeal stricture Intervention was performed with four different devices: balloon-retained - Freka® GastroTube, Fresenius Kabi (n = 121); MIC® Gastrostomy Feeding Tube, Kimberly-Clark (n = 34); Russell® Gastrostomy Tray, Cook Medical Inc. (n = 17); and loop-retained - Tilma® Gastrostomy Set, Cook Medical Inc. (n = 50). Follow-up was performed with regard to RIG-related complications, cause of removal and fatalities. Revision-free survival times after RIG were evaluated using Kaplan-Meier analysis and group differences by log-rank tests. For analysis of demographic and methodical variables multivariate Cox regression models were used. RESULTS With a primary technical success rate of 95.3% (222/233) a total of 92 instances of revisions were necessary in 66 patients (66/233, 28.3%) during follow-up (mean 182.8 ± 86.6 days). The most common complication was tube dislodgement (14.3%). There were no significant differences between the distinct devices (p = 0.098), but analyzing the data in subgroups of balloon-compared to loop-retained gastrostomy tubes we observed a significantly higher probability of minor complications for the latter (p = 0.023). CONCLUSION As it is significantly less prone to minor complications we recommend the use of balloon-retained gastrostomy tubes to improve the practicability and maintenance of RIG.
Collapse
Affiliation(s)
- J D Busch
- a Department of Diagnostic and Interventional Radiology and Nuclear Medicine , University Medical Center Hamburg-Eppendorf , Hamburg , Germany.,b Department of Diagnostic and Interventional Radiology and Nuclear Medicine , Section of Pediatric Radiology, University Medical Center Hamburg-Eppendorf , Hamburg , Germany
| | - J Herrmann
- a Department of Diagnostic and Interventional Radiology and Nuclear Medicine , University Medical Center Hamburg-Eppendorf , Hamburg , Germany.,b Department of Diagnostic and Interventional Radiology and Nuclear Medicine , Section of Pediatric Radiology, University Medical Center Hamburg-Eppendorf , Hamburg , Germany
| | - G Adam
- a Department of Diagnostic and Interventional Radiology and Nuclear Medicine , University Medical Center Hamburg-Eppendorf , Hamburg , Germany
| | - C R Habermann
- c Catholic Marienkrankenhaus GmbH , Institute of Diagnostic and Interventional Radiology , Hamburg , Germany
| |
Collapse
|
6
|
Bruns J, Habermann CR, Petersen JP. [Correction: Minimally Invasive Treatment of Tumours and Metastases in the Spine by Plasma Field Therapy (Cavity Coblation) and Vertebro-/Kyphoplasty with and without Additional Dorsal Percutaneous Instrumentation]. Z Orthop Unfall 2016; 154:e1. [PMID: 28241371 DOI: 10.1055/s-0037-1599294] [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] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Affiliation(s)
- J Bruns
- Klinik für Chirurgie und Orthopädie, Wilhemsburger Krankenhaus Groß-Sand, Hamburg
| | - C R Habermann
- Klinik für diagnostische und interventionelle Radiologie, Marienkrankenhaus Hamburg
| | - J P Petersen
- Zentrumfür Operative Medizin, Klinik für Unfall-, Hand- und Wiederherstellungschirurgie, Universitätsklinikum Hamburg-Eppendorf
| |
Collapse
|
7
|
Assaf AT, Zrnc TA, Remus CC, Khokale A, Habermann CR, Schulze D, Fiehler J, Heiland M, Sedlacik J, Friedrich RE. Early detection of pulp necrosis and dental vitality after traumatic dental injuries in children and adolescents by 3-Tesla magnetic resonance imaging. J Craniomaxillofac Surg 2015; 43:1088-93. [PMID: 26165761 DOI: 10.1016/j.jcms.2015.06.010] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [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: 01/06/2015] [Revised: 04/22/2015] [Accepted: 06/08/2015] [Indexed: 10/23/2022] Open
Abstract
OBJECTIVES More than 50% of all children suffer a traumatic dental injury (TDI) during childhood. In many cases, dentists apply root canal treatment (RCT), which is performed on an average of 7-10 days after replantation. Our aim was to evaluate whether RCT is necessary in many cases, and whether revitalization of affected teeth is possible and measurable by visualization using 3T magnetic resonance imaging (MRI). MATERIAL AND METHODS Seven healthy children with TDI were treated by repositioning of the affected teeth and reduction of alveolar process fractures followed by splinting. Two weeks after initial treatment, splints were removed. After 6 weeks, all children received 3-Tesla (3T), three-dimensional, high-resolution MRI with a 20-channel standard head and neck coil. The mean age of the children (male/female = 5:2) was 10.8 years (range, 8-17 years). In addition, all children received conventional dental examination for tooth vitality and dental sensitivity to cold and tenderness on percussion. RESULTS 3T MRI provided excellent images that allowed fine discrimination between dental pulp and adjacent tooth. Using four in-house optimized, non-contrast-enhanced sequences, including panoramic reconstruction, the assessment and analysis of the dental pulp was sufficiently feasible. We could demonstrate reperfusion and thus vitality of the affected teeth in 11 sites. In one child, MRI was able to detect nonreperfusion after TDI of the affected tooth. MRI results were confirmed by clinical examination in all cases. As a consequence of this expectant management and proof of reperfusion and tooth vitality by 3T MRI, only one child had to be treated by RCT. CONCLUSION 3T MRI is a very promising tool for visualization and detection in the field of dental and oromaxillofacial diseases. By using new 3T MRI sequences in children with TDI, we could demonstrate that RCT are not necessary in every case, and thus could prevent unnecessary treatment of children in the future. Larger studies should follow to confirm the potential benefit in clinical practice.
Collapse
Affiliation(s)
- Alexandre T Assaf
- Department of Oral and Maxillofacial Surgery (Head: Prof. Dr. Dr. Max Heiland, MD, DMD, PhD), University Medical Center Hamburg Eppendorf, University of Hamburg, Martinistr. 52, 20246 Hamburg, Germany.
| | - Tomislav A Zrnc
- Department of Oral and Maxillofacial Surgery (Head: Prof. Dr. Dr. Dr. H.F. Zeilhofer, MD, DMD, PhD), University Hospital Basel, University of Basel, Spitalstr. 21, 4056 Basel, Switzerland
| | - Chressen C Remus
- Department for Diagnostics and Interventional Radiology (Head: Prof. Dr. G. Adam, MD, PhD), University Medical Center Hamburg Eppendorf, University of Hamburg, Martinistr. 52, 78, 20246 Hamburg, Germany
| | - Arun Khokale
- Department of Diagnostics and Interventional Neuroradiology (Head: Prof. J. Fiehler, MD, PhD), University Medical Center Hamburg Eppendorf, University of Hamburg, Martinistr. 52, 20246 Hamburg, Germany
| | - Christian R Habermann
- Department for Diagnostics and Interventional Radiology (Head: Dr. H. Denkhaus, MD), Marien Hospital Hamburg, Alfredstraße 9, 22087 Hamburg, Germany
| | - Dirk Schulze
- Department of Diagnostics and Interventional Neuroradiology (Head: Prof. J. Fiehler, MD, PhD), University Medical Center Hamburg Eppendorf, University of Hamburg, Martinistr. 52, 20246 Hamburg, Germany
| | - Jens Fiehler
- Department of Diagnostics and Interventional Neuroradiology (Head: Prof. J. Fiehler, MD, PhD), University Medical Center Hamburg Eppendorf, University of Hamburg, Martinistr. 52, 20246 Hamburg, Germany
| | - Max Heiland
- Department of Oral and Maxillofacial Surgery (Head: Prof. Dr. Dr. Max Heiland, MD, DMD, PhD), University Medical Center Hamburg Eppendorf, University of Hamburg, Martinistr. 52, 20246 Hamburg, Germany
| | - Jan Sedlacik
- Department of Diagnostics and Interventional Neuroradiology (Head: Prof. J. Fiehler, MD, PhD), University Medical Center Hamburg Eppendorf, University of Hamburg, Martinistr. 52, 20246 Hamburg, Germany
| | - Reinhard E Friedrich
- Department of Oral and Maxillofacial Surgery (Head: Prof. Dr. Dr. Max Heiland, MD, DMD, PhD), University Medical Center Hamburg Eppendorf, University of Hamburg, Martinistr. 52, 20246 Hamburg, Germany
| |
Collapse
|
8
|
Habermann CR. Speicheldrüsenerkrankungen. ROFO-FORTSCHR RONTG 2014. [DOI: 10.1055/s-0034-1373153] [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]
|
9
|
Assaf AT, Zrnc TA, Remus CC, Schönfeld M, Habermann CR, Riecke B, Friedrich RE, Fiehler J, Heiland M, Sedlacik J. Evaluation of four different optimized magnetic-resonance-imaging sequences for visualization of dental and maxillo-mandibular structures at 3 T. J Craniomaxillofac Surg 2014; 42:1356-63. [PMID: 24837485 DOI: 10.1016/j.jcms.2014.03.026] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [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] [Received: 01/12/2014] [Revised: 02/11/2014] [Accepted: 03/25/2014] [Indexed: 11/19/2022] Open
Abstract
OBJECTIVES The purpose of this study was to evaluate four in-house optimized, non-contrast enhanced sequences for MRI-investigation of maxillo-mandibular and dental structures by use of 3 T. METHODS 12 volunteers with different dental status were examined by using a 3 T MRI with a 20-channel standard head-and-neck coil. All images performed were evaluated by using 3D-techniques, with different slice-thicknesses, in 3D T1- and T2-weighted sequences, as well as by using new techniques of image depictions. In addition phantom measurements were performed to estimate the extent of image artefacts caused by retainers and metal implants. RESULTS Mean age of the participants was 33 years (range, 25.5-62.75 years), and the sex ratio was 5 females to 7 males. We identified different techniques to improve osseous and dental structures, despite problems caused by dental implants, tooth crowns or braces. CONCLUSION The sequences evaluated offered excellent visualization in 2D and 3D of osseous and dental structures. Anatomical, osseous and dental structures were described at their ROI, in relation to patients with dental and head and neck pathologies. The ability to detect and distinguish pathological processes as soon as possible in 3D with excellent image quality avoiding ionizing radiation remains a challenging domain.
Collapse
Affiliation(s)
- Alexandre T Assaf
- Department of Oral and Maxillofacial Surgery (Head: Prof. MD, DMD, PhD. Max Heiland), University Medical Center Hamburg Eppendorf, University of Hamburg, Martinistr. 52, 20246 Hamburg, Germany.
| | - Tomislav A Zrnc
- Department of Oral and Maxillofacial Surgery (Head: Prof. MD, DMD, PhD. Max Heiland), University Medical Center Hamburg Eppendorf, University of Hamburg, Martinistr. 52, 20246 Hamburg, Germany
| | - Chressen C Remus
- Department of Diagnostics and Interventional Radiology, University Medical Center Hamburg Eppendorf, University of Hamburg, Martinistr. 52, 20246 Hamburg, Germany
| | - Michael Schönfeld
- Department of Diagnostics and Interventional Neuroradiology (Head: Prof. MD, PhD. Jens Fiehler), University Medical Center Hamburg Eppendorf, University of Hamburg, Martinistr. 52, 20246 Hamburg, Germany
| | - Christian R Habermann
- Department of Diagnostics and Interventional Radiology, University Medical Center Hamburg Eppendorf, University of Hamburg, Martinistr. 52, 20246 Hamburg, Germany
| | - Björn Riecke
- Department of Oral and Maxillofacial Surgery (Head: Prof. MD, DMD, PhD. Max Heiland), University Medical Center Hamburg Eppendorf, University of Hamburg, Martinistr. 52, 20246 Hamburg, Germany
| | - Reinhard E Friedrich
- Department of Oral and Maxillofacial Surgery (Head: Prof. MD, DMD, PhD. Max Heiland), University Medical Center Hamburg Eppendorf, University of Hamburg, Martinistr. 52, 20246 Hamburg, Germany
| | - Jens Fiehler
- Department of Diagnostics and Interventional Neuroradiology (Head: Prof. MD, PhD. Jens Fiehler), University Medical Center Hamburg Eppendorf, University of Hamburg, Martinistr. 52, 20246 Hamburg, Germany
| | - Max Heiland
- Department of Oral and Maxillofacial Surgery (Head: Prof. MD, DMD, PhD. Max Heiland), University Medical Center Hamburg Eppendorf, University of Hamburg, Martinistr. 52, 20246 Hamburg, Germany
| | - Jan Sedlacik
- Department of Diagnostics and Interventional Neuroradiology (Head: Prof. MD, PhD. Jens Fiehler), University Medical Center Hamburg Eppendorf, University of Hamburg, Martinistr. 52, 20246 Hamburg, Germany
| |
Collapse
|
10
|
Sheikhzadeh S, Brockstaedt L, Habermann CR, Sondermann C, Bannas P, Mir TS, Staebler A, Seidel H, Keyser B, Arslan-Kirchner M, Kutsche K, Berger J, Blankenberg S, von Kodolitsch Y. Dural ectasia in Loeys-Dietz syndrome: comprehensive study of 30 patients with a TGFBR1 or TGFBR2 mutation. Clin Genet 2013; 86:545-51. [PMID: 24344637 DOI: 10.1111/cge.12308] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [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: 09/29/2013] [Revised: 10/20/2013] [Accepted: 10/24/2013] [Indexed: 11/30/2022]
Abstract
The purpose of this study was to assess the frequency, severity, and clinical associations of dural ectasia (DE) in Loeys-Dietz syndrome (LDS). Database analysis of three German metropolitan regions identified 30 patients with LDS and TGFBR1 mutation in 6 and a TGFBR2 mutation in 24 individuals (17 men; mean age: 31 ± 19 years), as well as 60 age and sex-matched control patients with Marfan syndrome carrying a FBN1 mutation. DE was present in 22 patients with LDS (73%), and it related to skeletal score points (p = 0.008), non-skeletal score points (p < 0.001), and to the presence of ≥7 systemic score points (p = 0.010). Similarly, the severity of DE was related to body height (p = 0.010) and non-skeletal score points (p = 0.004). Frequency (p = 0.131) and severity of DE (p = 0.567) was similar in LDS and Marfan syndrome. DE is a manifestation of LDS that occurs with similar frequency and severity as in Marfan syndrome. Severity of DE may serve as a marker of the overall connective tissue disease severity. LDS may be considered in patients with DE.
Collapse
Affiliation(s)
- S Sheikhzadeh
- Centre of Cardiology and Cardiovascular Surgery, Department of Cardiology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
11
|
Sheikhzadeh S, Sondermann C, Rybczynski M, Habermann CR, Brockstaedt L, Keyser B, Kaemmerer H, Mir T, Staebler A, Robinson PN, Kutsche K, Berger J, Blankenberg S, von Kodolitsch Y. Comprehensive analysis of dural ectasia in 150 patients with a causative FBN1 mutation. Clin Genet 2013; 86:238-45. [PMID: 23991918 DOI: 10.1111/cge.12264] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [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: 07/04/2013] [Revised: 08/26/2013] [Accepted: 08/26/2013] [Indexed: 11/26/2022]
Abstract
The purpose of this study was to perform a comprehensive study of dural ectasia (DE) related to FBN1 mutations. We performed a database analysis of two German metropolitan regions of 150 patients (68 men, 82 women; mean age 35 ± 16 years). All patients had a FBN1 mutation and underwent dural magnetic resonance imaging. Age was <16 years in 20, 16-25 in 27, 26-35 in 67, and >35 in 36 patients. Prevalence of dural ectasia was 89% with criteria of Oosterhof and Habermann, 83% with Fattori, 78% with Lundby, and 59% with Ahn. DE was less frequent in patients <16 years with Ahn and Fattori. DE related to skeletal manifestations with all criteria, to aortic Z-scores and mitral valve prolapse with criteria of Habermann and Lundby, and to age with criteria of Fattori. The Fattori-grade of DE increased with age, aortic Z-scores, and skeletal score points. There was no consistent relationship of DE with any type of FBN1 mutation. DE is frequent in patients with FBN1 mutations irrespective of age and its severity increases during life. Criteria of Oosterhof and Habermann yielded most consistent diagnostic results. DE relates to skeletal involvement, aortic Z-scores, and mitral valve prolapse.
Collapse
|
12
|
Assaf AT, Kahl-Nieke B, Feddersen J, Habermann CR. Is high-resolution ultrasonography suitable for the detection of temporomandibular joint involvement in children with juvenile idiopathic arthritis? Dentomaxillofac Radiol 2013; 42:20110379. [PMID: 23439686 DOI: 10.1259/dmfr.20110379] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
OBJECTIVES The purpose of this study was to determine the potential of high-resolution ultrasonography for the detection of temporomandibular joint (TMJ) changes in children with juvenile idiopathic arthritis (JIA). METHODS We investigated prospectively 20 children (17 female and 3 male; mean age 11.06 years, standard deviation 3.43 years) with TMJ disorders caused by JIA, over a period of 16 months. Using a 12 MHz array transducer, four images in each TMJ (160 images) were acquired. Each image was analysed with regard to five different aspects (condylar erosion, thickness of the condylar disc, synovial thickness, joint effusion and enlargement of the intra-articular space). RESULTS Diagnosis of JIA was ensured for every child and involvement of the TMJ was proven by MRI. Overall 287 changes (35.9%) were detected by using high-resolution ultrasonography. On 124 images (77.5%) condylar erosions were diagnosed; on 55 images (34.4%) synovial thickness was abnormal; on 48 images (30%) we could see higher thickness of the condylar disc; on 40 images (25%) irregularities of the bony surface were detected; and on 20 images (12.5%) we found joint effusion. CONCLUSION High-resolution ultrasonography could be a sufficient diagnostic method, especially for the detection of condylar involvement in children with JIA, even if not all parts of the TMJ are visible for ultrasonography. High-resolution ultrasonography is a valuable tool in particular situations: (i) when MRI examination is not available; (ii) when children fear MRI examination; (iii) in more advanced stages of JIA; and (iv) for monitoring the progression of TMJ involvement and response of therapy.
Collapse
Affiliation(s)
- A T Assaf
- Department of Oral and Cranio- Maxillofacial Surgery, University Medical Center Hamburg Eppendorf, University of Hamburg, Hamburg, Germany.
| | | | | | | |
Collapse
|
13
|
Abstract
Osteochondritis dissecans most often affects the convex articular surfaces of the knee, the elbow, and the ankle joints; other sites of manifestation are very rare. Here we report a case of osteochondritis dissecans of the talonavicular joint affecting the concave part of the tarsal navicular bone in a 22-year-old woman, which was successfully treated by surgery, leading to complete recovery. Early diagnosis and surgery in stages of undamaged cartilage may help to prevent disease progression and the development of disabling osteoarthritis in the physiologically heavily loaded talo-navicular joint.
Collapse
Affiliation(s)
- Frank Timo Beil
- Department of Orthopaedics, University Medical Center Hamburg-Eppendorf, Germany
| | | | | | | | | |
Collapse
|
14
|
Habermann CR. Larynx: Stand der MRT-Diagnostik. ROFO-FORTSCHR RONTG 2013. [DOI: 10.1055/s-0033-1346112] [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: 10/26/2022]
|
15
|
Bannas P, Fraedrich K, Treszl A, Bley TA, Herrmann J, Habermann CR, Derlin T, Henes FO, Wenzel U, Adam G, Yamamura J. Shiga toxin-producing E. coli O104:H4 outbreak 2011 in Germany: radiological features of enterohemorrhagic colitis. ROFO-FORTSCHR RONTG 2013; 185:434-9. [PMID: 23440645 DOI: 10.1055/s-0032-1330520] [Citation(s) in RCA: 4] [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: 10/27/2022]
Abstract
PURPOSE In 2011 a nationwide outbreak of Shiga toxin-producing E. coli (STEC) O104:H4 infection occurred in Germany with severe hemorrhagic colitis and hemolytic-uremic syndrome (HUS). We defined abdominal radiologic findings in these patients and correlated them with clinical parameters. MATERIALS AND METHODS 23 patients (7 men; age: 48 ± 19 years) with O104:H4 colitis and/or HUS received abdominal CT (n = 12) or radiographs (n = 11). Colonic distension, air-fluid levels, and free intraabdominal air were assessed. Colonic wall thickening, contrast enhancement, pericolic stranding, and ascites were evaluated on CT. Laboratory parameters and clinical presentation were reviewed. Chi-square test, Student's t-test, McNemar's test and Spearman correlation were performed. RESULTS Colonic lumen distension was seen in 16/23 patients (69.6 %). The ascending colon (11/23 patients; 47.8 %) and transverse colon (12/23 patients; 52.2 %) were dilated significantly more often (p = 0.006 and p = 0.003, respectively) than the descending colon (1/23; 4.3 %). All 12 patients undergoing CT scanning had abnormally thickened colonic wall segments, 3 (25 %) had pancolic involvement and 9 (75 %) had segmental involvement. The descending colon was predominantly affected (11/12 patients; 91.7 %) and thickened significantly more often than other colonic segments (p < 0.001). CONCLUSION The segmental type of STEC O104:H4 colitis mainly affects the descending colon with upstream distension of the transverse/ascending colon and differs from other types of colitis.
Collapse
Affiliation(s)
- P Bannas
- Diagnostikzentrum, Klinik und Poliklinik für Diagnostische und Interventionelle Radiologie, Universitätsklinikum Hamburg-Eppendorf, Hamburg, Germany.
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
16
|
Bannas P, Habermann CR, Yamamura J, Bley TA. Severe haemorrhage after liver biopsy of malignant B-cell lymphoma mimicking hepatic infection. ROFO-FORTSCHR RONTG 2012; 185:164-6. [PMID: 23108895 DOI: 10.1055/s-0032-1325443] [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]
|
17
|
Herrmann J, Schoennagel BP, Roesch M, Busch JD, Derlin T, Doh LK, Petersen KU, Graessner J, Adam G, Habermann CR. Diffusion-weighted imaging of the healthy pancreas: ADC values are age and gender dependent. J Magn Reson Imaging 2012; 37:886-91. [PMID: 23086728 DOI: 10.1002/jmri.23871] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2012] [Accepted: 09/07/2012] [Indexed: 02/01/2023] Open
Abstract
PURPOSE To investigate the healthy pancreas with diffusion-weighted imaging (DWI) for characterization of age and gender-related differences in apparent diffusion coefficient (ADC) values. MATERIALS AND METHODS Sixty six volunteers were prospectively enrolled (33 male, 33 female; range 1.4 to 83.7 years of age) and echo-planar DWI of the pancreas was performed. ADC values were measured in the pancreas head, body, and tail using a pixel-by-pixel approach. Effects of age and gender on ADC values were analyzed using a two-factorial multivariate analysis of variance (MANOVA). RESULTS ADC values correlated inversely with the age of the volunteers. The mean global pancreatic ADC values (× 10(-3) mm(2)/s) in the age groups 0-20 years, 21-40 years, and > 40 years were 1.18 ± 0.19, 1.07 ± 0.13, and 0.99 ± 0.18, respectively. Female individuals had higher mean global ADC values than male (1.13 ± 0.14 versus 1.02 ± 0.18 × 10(-3) mm(2)/s). MANOVA showed significant effects of age (P value 0.022, eta(2) = 0.13) and gender (P value 0.001, eta(2) = 0.28) on ADC values. CONCLUSION Pancreatic ADC values decline with ageing and show significant gender differences with higher mean values in females. The awareness of baseline values adjusted to age and gender will be important for correct interpretation of individual cases and design of future studies.
Collapse
Affiliation(s)
- Jochen Herrmann
- Department of Diagnostic and Interventional Radiology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
| | | | | | | | | | | | | | | | | | | |
Collapse
|
18
|
Ritzel RM, Bier J, Habermann CR. [Ductus Thyroglossal cyst carcinoma in a multicentric papillary thyroid carcinoma]. ROFO-FORTSCHR RONTG 2012; 185:76-7. [PMID: 23023230 DOI: 10.1055/s-0032-1313211] [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]
|
19
|
Ritzel RM, Klose H, Habermann CR. [Tracheal metastasis of a cutaneous malignant melanoma]. ROFO-FORTSCHR RONTG 2012; 184:742-3. [PMID: 22618475 DOI: 10.1055/s-0032-1312779] [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: 10/28/2022]
|
20
|
Koops A, Nentwich MF, Habermann CR, Bockhorn M, Izbicki JR, Adam G. Perkutane transhepatische cholangioläre Drainage zur Behandlung postoperativer Galleleckagen bei 20 nicht-cholestatischen Patienten. ROFO-FORTSCHR RONTG 2012. [DOI: 10.1055/s-0032-1311141] [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: 10/28/2022]
|
21
|
Habermann CR. Nierenarterienstenose - Technik. ROFO-FORTSCHR RONTG 2012. [DOI: 10.1055/s-0032-1310943] [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: 10/28/2022]
|
22
|
Bannas P, Rybczynski M, Sheikhzadeh S, Kodolitsch YV, Graessner J, Adam A, Habermann CR. Intraindividueller Vergleich von nativer und kontrastmittelverstärkter MRA für die Detektion von Aortenwurzelaneurysmen in Patienten mit Marfan Syndrom. ROFO-FORTSCHR RONTG 2012. [DOI: 10.1055/s-0032-1311056] [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: 10/28/2022]
|
23
|
Busch JD, Sinkus R, Albrecht A, Adam G, Habermann CR. MR-Elastographie der Glandula parotidea: Erste Erfahrungen bei 3 Tesla. ROFO-FORTSCHR RONTG 2012. [DOI: 10.1055/s-0032-1311101] [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: 10/28/2022]
|
24
|
Habermann CR. Ballonkatheter und Indikationen. ROFO-FORTSCHR RONTG 2012. [DOI: 10.1055/s-0032-1310866] [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: 10/28/2022]
|
25
|
Habermann CR. Lymphknoten. ROFO-FORTSCHR RONTG 2012. [DOI: 10.1055/s-0032-1310722] [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: 10/28/2022]
|
26
|
Busch JD, Wisotzki C, Schoennagel BP, Habermann CR, Mester J, Klutmann S, Derlin T. Wertigkeit der I-123-MIBG SPECT/CT vs. MRT zur Detektion adrenaler Phäochromozytome bei erhöhten Serum- bzw. Harnkatecholaminwerten. ROFO-FORTSCHR RONTG 2012. [DOI: 10.1055/s-0032-1311272] [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: 10/28/2022]
|
27
|
Koops A, Ramcic-Hakimi E, Ittrich H, Habermann CR, Adam G. Einfluss von hepatischer Steatose und Fibrose auf die segmentale Leberhypertrophie nach perkutaner Pfortaderembolisation. ROFO-FORTSCHR RONTG 2012. [DOI: 10.1055/s-0032-1311188] [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: 10/28/2022]
|
28
|
Bannas P, Groth M, Rybczynski M, Sheikhzadeh S, von Kodolitsch Y, Graessner J, Lund G, Adam G, Habermann CR. Assessment of aortic root dimensions in patients with suspected Marfan syndrome: intraindividual comparison of contrast-enhanced and non-contrast magnetic resonance angiography with echocardiography. Int J Cardiol 2012; 167:190-6. [PMID: 22240770 DOI: 10.1016/j.ijcard.2011.12.041] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [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: 09/21/2011] [Revised: 12/06/2011] [Accepted: 12/17/2011] [Indexed: 11/16/2022]
Abstract
PURPOSE Our purpose was to evaluate intraindividually the performance of contrast-enhanced magnetic resonance angiography (MRA) and non-contrast MRA for aortic root diameter measurements and to compare the results with routinely performed echocardiography in patients with suspected Marfan syndrome. METHODS AND MATERIALS Aortic roots were examined prospectively in 51 consecutive patients with suspected Marfan syndrome by using contrast-enhanced MRA and non-contrast MRA at 1.5 T. Two readers independently measured aortic root diameters at the annulus, sinuses of Valsalva and sinutubular junction in both data sets and compared results with echocardiographic data. Intraclass correlation coefficient, Pearson correlation coefficient, Bland-Altman, and two-sided t-test were used to assess agreement between observers and methods. RESULTS 38 (74.5%) of the 51 patients (25 female, 26 male; mean age 37.1 ± 13.7 years) had Marfan syndrome. Both, contrast-enhanced MRA and non-contrast MRA measurements of the sinuses of Valsalva revealed a strong correlation with echocardiography (r=0.850 and r=0.893, respectively). Intraclass correlation was markedly better for non-enhanced MRA (r=0.904) when compared to contrast-enhanced MRA (r=0.690). Image quality (p<0.001) as well as interobserver agreement (p<0.0042) of measurements of the sinuses of Valsalva was significantly better for non-enhanced MRA than for contrast-enhanced MRA. CONCLUSION Non-contrast MRA was more reliable and more valid than contrast-enhanced MRA for assessment of aortic root dimensions in patients with suspected Marfan syndrome. Therefore contrast agents can be omitted for establishing the diagnosis of aortic involvement in Marfan syndrome.
Collapse
Affiliation(s)
- Peter Bannas
- Department of Diagnostic and Interventional Radiology, University Hospital Eppendorf, Hamburg, Germany.
| | | | | | | | | | | | | | | | | |
Collapse
|
29
|
Radunski UK, Muellerleile K, Meier Y, Habermann CR, Koschyk D, Koester R, Lund GK, Adam G, Meinertz T, Barmeyer A. Diastolic dysfunction in patients with preserved ejection fraction: identification by velocity encoded magnetic resonance imaging. J Cardiovasc Magn Reson 2011. [PMCID: PMC3106652 DOI: 10.1186/1532-429x-13-s1-p330] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
|
30
|
Derlin T, Weber C, Habermann CR, Herrmann J, Wisotzki C, Ayuk F, Wolschke C, Klutmann S, Kröger N. 18F-FDG PET/CT for detection and localization of residual or recurrent disease in patients with multiple myeloma after stem cell transplantation. Eur J Nucl Med Mol Imaging 2011; 39:493-500. [PMID: 22113619 DOI: 10.1007/s00259-011-1993-8] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2011] [Accepted: 11/02/2011] [Indexed: 12/24/2022]
Abstract
PURPOSE The aim of the study was to determine the diagnostic performance of (18)F-fluorodeoxyglucose (FDG) positron emission tomography (PET)/CT for the detection and localization of residual or recurrent disease in patients with multiple myeloma (MM) after stem cell transplantation. METHODS A total of 197 whole-body (18)F-FDG PET/CT scans were performed in 99 patients with MM at different time points in the course of disease after autologous or allogeneic stem cell transplantation. Post-transplant PET/CT scans and clinical remission status as determined by the clinical gold standard (Uniform Response Criteria) were analysed and compared. RESULTS A total of 576 focal osseous and extramedullary lesions were detected in 79 scans. Additional diffuse bone marrow involvement was detected in 17 patients. (18)F-FDG PET/CT had a sensitivity of 54.6%, a specificity of 82.1%, a positive predictive value of 82.3%, a negative predictive value of 54.2% and an overall accuracy of 65.5%. The sensitivity of (18)F-FDG PET/CT was shown to depend on the disease category according to the Uniform Response Criteria for myeloma. CONCLUSION In patients with MM in the post-transplant setting, (18)F-FDG PET/CT may (1) contribute to the detection and localization of disease, (2) provide information about the extent of distinct myeloma manifestations and the total disease burden and (3) add information about the metabolic activity of disease, but (4) has substantially lower sensitivity for this purpose compared to the pretreatment setting.
Collapse
Affiliation(s)
- Thorsten Derlin
- Department of Nuclear Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
| | | | | | | | | | | | | | | | | |
Collapse
|
31
|
Derlin T, Habermann CR, Lengyel Z, Busch JD, Wisotzki C, Mester J, Pávics L. Feasibility of 11C-acetate PET/CT for imaging of fatty acid synthesis in the atherosclerotic vessel wall. J Nucl Med 2011; 52:1848-54. [PMID: 22065877 DOI: 10.2967/jnumed.111.095869] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
UNLABELLED Fatty acids are a common constituent of atherosclerotic plaque and may be synthesized in the plaque itself. Fatty acid synthesis requires acetyl-coenzyme-A (CoA) as a main substrate, which is produced from acetate. Currently, (11)C-acetate PET/CT is used for the evaluation of malignancies. There are no data concerning its potential for the characterization of atherosclerotic plaque. Therefore, the purpose of the present study was to examine the prevalence, distribution, and topographic relationship of arterial (11)C-acetate uptake and vascular calcification in major arteries. METHODS Thirty-six patients were examined by whole-body (11)C-acetate PET/CT. Tracer uptake in various arterial segments was analyzed both qualitatively and semiquantitatively by measuring the blood-pool-corrected standardized uptake value (target-to-background ratio). CT images were used to measure calcified plaque burden. RESULTS (11)C-acetate uptake was observed at 220 sites in 32 (88.8%) of the 36 study patients, and mean target-to-background ratio was 2.5 ± 1.0. Calcified atherosclerotic lesions were observed at 483 sites in 30 (83.3%) patients. Sixty-four (29.1%) of the 220 lesions with marked (11)C-acetate uptake were colocalized with arterial calcification. However, only 13.3% of all arterial calcification sites demonstrated increased radiotracer accumulation. CONCLUSION Our data indicate the feasibility of using (11)C-acetate PET/CT for imaging of fatty acid synthesis in the atherosclerotic vessel wall. This study provides a rationale to incorporating (11)C-acetate PET into further preclinical and clinical studies to obtain new insights into fatty acid synthesis in atherosclerotic lesions and to evaluate whether it may be used to monitor pharmacologic intervention with fatty acid synthase inhibitors.
Collapse
Affiliation(s)
- Thorsten Derlin
- Department of Nuclear Medicine, University Medical Center Hamburg-Eppendorf, Hamburg-Eppendorf, Germany.
| | | | | | | | | | | | | |
Collapse
|
32
|
Sheikhzadeh S, Kade C, Keyser B, Stuhrmann M, Arslan-Kirchner M, Rybczynski M, Bernhardt AM, Habermann CR, Hillebrand M, Mir T, Robinson PN, Berger J, Detter C, Blankenberg S, Schmidtke J, von Kodolitsch Y. Analysis of phenotype and genotype information for the diagnosis of Marfan syndrome. Clin Genet 2011; 82:240-7. [PMID: 21883168 DOI: 10.1111/j.1399-0004.2011.01771.x] [Citation(s) in RCA: 33] [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: 11/29/2022]
Abstract
Marfan syndrome is considered a clinical diagnosis. Three diagnostic classifications comprising first, Marfan genotype with a causative FBN1 gene mutation; second, Marfan phenotype with clinical criteria of the original Ghent nosology (Ghent-1); and third, phenotype with clinical criteria of its current revision (Ghent-2) in 300 consecutive persons referred for confirmation or exclusion of Marfan syndrome (150 men, 150 women aged 35 ± 13 years) were used. Sequencing of TGBR1/2 genes was performed in 128 persons without FBN1 mutation. Marfan genotype was present in 140, Ghent-1 phenotype in 139, and Ghent-2 phenotype in 124 of 300 study patients. Marfan syndrome was confirmed in 94 and excluded in 129 persons consistently by all classifications, but classifications were discordant in 77 persons. With combined genotype and phenotype information confirmation of Marfan syndrome was finally achieved in 126 persons by Ghent-1 and in 125 persons by Ghent-2 among 140 persons with Marfan genotype, and exclusion was accomplished in 139 persons by Ghent-1 and in 141 persons by Ghent-2 among 160 persons without Marfan genotype. In total, genotype information changed final diagnoses in 22 persons with Ghent-1, and in 32 persons with Ghent-2. It is concluded that genotype information is essential for diagnosis or exclusion of Marfan syndrome.
Collapse
Affiliation(s)
- S Sheikhzadeh
- Centre of Cardiology and Cardiovascular Surgery, University Hospital Eppendorf, Hamburg, Germany
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
33
|
Henes FO, Nüchtern JV, Groth M, Habermann CR, Regier M, Rueger JM, Adam G, Großterlinden LG. Comparison of diagnostic accuracy of Magnetic Resonance Imaging and Multidetector Computed Tomography in the detection of pelvic fractures. Eur J Radiol 2011; 81:2337-42. [PMID: 21924851 DOI: 10.1016/j.ejrad.2011.07.012] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2011] [Revised: 07/14/2011] [Accepted: 07/15/2011] [Indexed: 11/26/2022]
Abstract
OBJECTIVE To compare diagnostic accuracy and interobserver reliability of Magnetic Resonance Imaging (MRI) and Multidetector Computed Tomography (MDCT) in the detection of acute pelvic fractures. MATERIALS AND METHODS In 38 consecutive patients (mean age 74.7 years) with a positive finding of anterior pelvis fracture in the conventional X-rays, pelvic MRI and MDCT were performed for further evaluation of pelvic ring fractures. Two radiologists independently read all data sets. Sensitivity and specificity were calculated based on mean scores for each method. Sensitivities of CT and MRI were compared using a paired proportion test (McNemar). Diagnostic validity of both methods was assessed by the interobserver variability using kappa statistics. Combined clinical data and findings from all imaging studies served as the reference standard. RESULTS 122 fractures were identified in the reference standard (37 sacral, 58 pubic, 22 acetabular, 1 ischial, 4 ilial). On average, MRI detected 96.3% whereas CT detected 77% of all fractures. With regard to sensitivity, MRI proved to be significantly better compared to MDCT (observer 1, p=0.0009; observer 2, p=0.0003 by observer 2). In particular, MRI performed better in the depiction of sacral fractures, reaching a sensitivity of 98.6% compared to 66.1% at CT. The interobserver variability was determined to be very good (k=0.955 for MRI and 0.902 for MDCT). CONCLUSION MRI reaches a significantly higher sensitivity than CT in the detection of acute pelvic fractures, particularly of the sacrum. Especially in elderly patients with suspicion of a sacral fracture and negative results at MDCT, MRI may be considered as the next step in diagnostic workup.
Collapse
Affiliation(s)
- F O Henes
- Department of Diagnostic and Interventional Radiology, University Medical Center Hamburg-Eppendorf, Martinistraße 52, 20246 Hamburg, Germany.
| | | | | | | | | | | | | | | |
Collapse
|
34
|
Bannas P, Habermann CR, Jung C, Bley TA, Ittrich H, Adam G, Koops A. Diagnostic accuracy of state-of-the-art MDCT scanners without gantry tilt in patients with oral and oropharyngeal cancer. Eur J Radiol 2011; 81:3947-52. [PMID: 21924573 DOI: 10.1016/j.ejrad.2011.07.009] [Citation(s) in RCA: 6] [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: 06/28/2011] [Revised: 07/26/2011] [Accepted: 07/29/2011] [Indexed: 10/17/2022]
Abstract
PURPOSE Current CT-protocols for staging oral and oropharyngeal cancer include primary transversal slices and secondary tilted slices to avoid artifact-producing regions of dental metalwork. Some of the latest MDCT scanners do not allow gantry tilt. Hence, we assessed the relevance of secondary tilted slices in tumor staging. MATERIALS AND METHODS Scans of a tiltable 64-row MDCT-scanner of 82 patients with oral or oropharyngeal cancer were retrospectively and independently evaluated twice by three readers: once using the primary transversal scans only, and once taking the transversal and secondary tilted scans into account. Tumor diameters and TN-stage were determined with both methods. Artifacts on transversal scans were analyzed using a 3-point-ranking-scale. RESULTS Image quality was impaired by severe artifacts in 24% of transversal slices of the oral cavity and in 12% of the oropharynx. The three readers detected an average of 57.7 ± 2.1 of 82 tumors (70%) on transversal CT slices. An average of 6.3 ± 0.6 more tumors (8%) were detected when transversal studies were evaluated in conjunction with secondary tilted slices, leading to a significantly (p=0.0156-0.0313) increased average detection rate of 64.0 ± 2.0 tumors (78%). Moreover, secondary tilted slices led to a correction of underestimated tumor stages in up to six patients (7.3%). CONCLUSION Tilted slices that avoid artifact-producing regions of dental metalwork significantly improve the reader's sensitivity and are of incremental value for staging of oral and oropharyngeal cancers.
Collapse
Affiliation(s)
- Peter Bannas
- Department of Diagnostic and Interventional Radiology, University Hospital Hamburg-Eppendorf, Martinistr. 52, 20246 Hamburg, Germany.
| | | | | | | | | | | | | |
Collapse
|
35
|
Sheikhzadeh S, Rybczynski M, Habermann CR, Bernhardt AMJ, Arslan-Kirchner M, Keyser B, Kaemmerer H, Mir TS, Staebler A, Oezdal N, Robinson PN, Berger J, Meinertz T, von Kodolitsch Y. Dural ectasia in individuals with Marfan-like features but exclusion of mutations in the genes FBN1, TGFBR1 and TGFBR2. Clin Genet 2011; 79:568-74. [PMID: 20662850 DOI: 10.1111/j.1399-0004.2010.01494.x] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Mutations in the genes FBN1, TGFBR1, and TGFBR2 can result in heritable connective tissue disorders comprising the Marfan syndrome and the Loeys-Dietz syndrome. Dural ectasia is a characteristic manifestation of both syndromes. However, dural ectasia has not yet been investigated in connective tissue disorders that are unrelated to mutations in the FBN1, TGFBR1 or TGFBR2 genes. Here, we assessed dural ectasia in 33 individuals both with typical manifestations of heritable connective tissue disease and in whom mutations in all three genes had been excluded. We identified 19 individuals with dural ectasia (58%), who exhibited major skeletal manifestations of the Marfan syndrome more frequently than the remaining 14 persons without dural ectasia (p = 0.06). Moreover, only persons with dural ectasia fulfilled clinical criteria of the Marfan syndrome (p = 0.01). Conversely, aortic aneurysm (12 patients; p = 0.8), aortic dissection (five patients; p = 0.1), spontaneous dissection of the carotid arteries (five patients; p = 1), and mitral valve prolapse (13 patients; p = 0.4) were similarly frequent irrespective of dural ectasia. We conclude that dural ectasia is a marker for connective tissue disease which coincides with skeletal rather than with cardiovascular manifestations, and which may involve currently uncharacterized pathogenetic mechanisms and syndromes.
Collapse
Affiliation(s)
- S Sheikhzadeh
- Centre of Cardiology and Cardiovascular Surgery, University Hospital Eppendorf, Hamburg, Germany
| | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
36
|
Schoennagel BP, Habermann CR, Roesch M, Hahne JD, Arndt C, Kleibeler L, Petersen KU, Graessner J, Adam G, Herrmann J. Diffusion-weighted imaging of the healthy pancreas: Apparent diffusion coefficient values of the normal head, body, and tail calculated from different sets of b-values. J Magn Reson Imaging 2011; 34:861-5. [DOI: 10.1002/jmri.22743] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2011] [Accepted: 07/18/2011] [Indexed: 02/01/2023] Open
|
37
|
Derlin T, Tóth Z, Papp L, Wisotzki C, Apostolova I, Habermann CR, Mester J, Klutmann S. Correlation of Inflammation Assessed by 18F-FDG PET, Active Mineral Deposition Assessed by 18F-Fluoride PET, and Vascular Calcification in Atherosclerotic Plaque: A Dual-Tracer PET/CT Study. J Nucl Med 2011; 52:1020-7. [DOI: 10.2967/jnumed.111.087452] [Citation(s) in RCA: 159] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
|
38
|
Derlin T, Habermann CR, Hahne JD, Apostolova I, Klutmann S, Mester J, Buchert R. Quantification of [18F]-FDG uptake in atherosclerotic plaque: impact of renal function. Ann Nucl Med 2011; 25:586-91. [DOI: 10.1007/s12149-011-0503-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2011] [Accepted: 05/24/2011] [Indexed: 10/18/2022]
|
39
|
Henes FO, Groth M, Adam G, Habermann CR, Grossterlinden L. Evaluation der diagnostischen Genauigkeit der MRT zur Detektion traumatischer Beckenfrakturen im Vergleich zur Mehrzeilen-Computertomographie (MDCT). ROFO-FORTSCHR RONTG 2011. [DOI: 10.1055/s-0031-1279461] [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]
|
40
|
Hahne JD, Arndt C, Herrmann J, Much C, Schönnagel B, Adam G, Habermann CR. Primäre einzeitige durchleuchtungsgesteuerte perkutane Gastrostomie (PG): Erste Ergebnisse mit dem Freka® GastroTube. ROFO-FORTSCHR RONTG 2011. [DOI: 10.1055/s-0031-1279157] [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]
|
41
|
Hahne JD, Arndt C, Herrmann J, Much C, Schönnagel B, Adam G, Habermann CR. CTA-Follow-up endovaskulär versorgter infrarenaler Aortenaneurysmata: Maximaler Diameter im Vergleich zur Volumetrie. ROFO-FORTSCHR RONTG 2011. [DOI: 10.1055/s-0031-1279416] [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]
|
42
|
Hahne JD, Heller F, Arndt C, Herrmann J, Schönnagel B, Much C, Habermann CR. Follow-up interventionell radiologisch implantierter zentralvenöser Portkathetersysteme am Oberarm:. ROFO-FORTSCHR RONTG 2011. [DOI: 10.1055/s-0031-1279094] [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]
|
43
|
Hahne JD, Schönnagel BP, Arndt C, Herrmann J, Bannas P, Koops A, Adam G, Habermann CR. [Fluoroscopic-guided primary single-step percutaneous gastrostomy: initial results using the Freka® GastroTube]. ROFO-FORTSCHR RONTG 2011; 183:641-4. [PMID: 21391175 DOI: 10.1055/s-0029-1246109] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
PURPOSE To determine the practicability and outcome of fluoroscopic-guided primary one-step treatment of percutaneous gastrostomy (PG) with the system Freka® Gastro Tube (Fresenius Kabi, Germany). MATERIALS AND METHODS In 39 patients (mean age 62.7 ± 12.0 years), primary PG was performed based on clinical indication from August 2009 to April 2010. The intervention was performed by an experienced radiologist under aseptic conditions by direct puncture with Freka® Gastro Tube under fluoroscopic guidance. The clinical data and outcome as well as any complications originated from the electronic archive of the University Medical Center Hamburg-Eppendorf. RESULTS The intervention was technically successful in all 39 patients. Within the mean follow-up time of 155.3 ± 73.6 days, 29 patients (74.4 %) did not experience complications. 10 patients (25.6 %) had to be revised. Complications manifested after a mean of 135.6 ± 61.2 days and mainly corresponded to accidental dislocation (50 %). One patient had to be surgically revised under suspicion of a malpositioned tube and suspected intestinal perforation. Clinically relevant wound infections were not detected. The total costs per patient were 553.17 € for our single-step treatment (OPS 5 - 431.x) vs. 963.69 € (OPS 5 - 431.x and OPS 8 - 123.0) for the recommended two-step treatment. CONCLUSION Fluoroscopic-guided primary single-step treatment with Freka® Gastro Tube system is feasible and not associated with an increased complication rate when compared to published literature applying a two-step treatment approach. Material costs as well as human and time resources could be significantly reduced using the single-step treatment.
Collapse
Affiliation(s)
- J D Hahne
- Zentrum für Radiologie und Endoskopie, Klinik und Poliklinik für Diagnostische und Interventionelle Radiologie, Universitätsklinikum Hamburg-Eppendorf, Hamburg
| | | | | | | | | | | | | | | |
Collapse
|
44
|
Rybczynski M, Koschyk D, Karmeier A, Gessler N, Sheikhzadeh S, Bernhardt AMJ, Habermann CR, Treede H, Berger J, Robinson PN, Meinertz T, von Kodolitsch Y. Frequency of sleep apnea in adults with the Marfan syndrome. Am J Cardiol 2010; 105:1836-41. [PMID: 20538140 DOI: 10.1016/j.amjcard.2010.01.369] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/07/2009] [Revised: 01/15/2010] [Accepted: 01/15/2010] [Indexed: 11/19/2022]
Abstract
Obstructive and central sleep apneas are treatable disorders, which contribute to cardiovascular morbidity in older adults. Younger adults with Marfan syndrome may also be at risk for sleep apnea, but the relation between cardiovascular complications and sleep apnea is unknown. We used MiniScreen8 portable monitoring devices for polygraphy in 68 consecutive adults with Marfan syndrome (33 men, 35 women, 41 +/- 14 years old) to investigate frequency of sleep apnea and its relation to cardiovascular morbidity. The apnea-hypopnea index (AHI) was 6 to 15/hour in 14 subjects (mild sleep apnea, 21%), and AHI was >15/hour in 7 subjects (moderate or severe sleep apnea, 10%). Among established risk factors for sleep apnea, only older age (Spearman rho = 0.35, p = 0.004) and body mass index (rho = 0.26, p = 0.03) were associated with increased AHI. Of all cases of apnea, 12 +/- 27 were obstructive, 11 +/- 25 central, and 3 +/- 9 mixed. AHI was associated with decreased left ventricular ejection fraction (rho = -0.33, p = 0.01), increased N-terminal pro-brain natriuretic peptide levels (rho = 0.35, p = 0.004), enlarged descending aortic diameters (rho = 0.44, p = 0.001), atrial fibrillation (phi = 0.43, p = 0.002), and mitral valve surgery (phi = 0.34, p = 0.02). Of these, left ventricular ejection fraction, N-terminal pro-brain natriuretic peptide levels, atrial fibrillation, and mitral valve surgery were associated with AHI independently of age and body mass index. We found similar associations with oxygen desaturation index. In conclusion, sleep apnea exhibits increased frequency in Marfan syndrome and is not predicted by classic risk factors. Obstructive and central sleep apneas may relate to cardiovascular disease variables.
Collapse
Affiliation(s)
- Meike Rybczynski
- Centre of Cardiology and Cardiovascular Surgery, University Hospital Eppendorf, Hamburg, Germany
| | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
45
|
Habermann CR, Arndt C, Graessner J, Reitmeier F, Jaehne M, Adam G. Diffusionsgewichtete MRT primärer Tumoren der Glandula parotidea: Kann eine höhere b-Wertkombination das diagnostische Potential verbessern? ROFO-FORTSCHR RONTG 2010. [DOI: 10.1055/s-0030-1252520] [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]
|
46
|
Habermann CR. Bildgebung entzündlicher Veränderungen des Schläfenbeins. ROFO-FORTSCHR RONTG 2010. [DOI: 10.1055/s-0030-1252268] [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]
|
47
|
Habermann CR, Ries T, Arndt C, Regier M, Petersen KU, Graessner J, Reitmeier F, Koops A, Adam G. Funktionelle Bildgebung der Glandula parotidea und der Glandula submandibularis mittels diffusionsgewichteter MRT: Hat die Art der oralen Stimulation einen Einfluss auf die Messergebnisse? ROFO-FORTSCHR RONTG 2009. [DOI: 10.1055/s-0029-1221383] [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]
|
48
|
Arndt C, Graessner F, Reitmeier F, Koops A, Adam G, Habermann CR. Differenzierung primärer Neoplasien der Glandula parotidea: Erbringt die Kombination von Diffusionsgewichteter Echoplanarer MRT und Magnetisierungs-Transfer Bildgebung einen Diagnostischen Zugewinn? ROFO-FORTSCHR RONTG 2009. [DOI: 10.1055/s-0029-1221256] [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]
|
49
|
Habermann CR. Präoperative Halslymphknotendiagnostik. ROFO-FORTSCHR RONTG 2009. [DOI: 10.1055/s-0029-1221077] [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]
|
50
|
Koops A, Ramcic E, Habermann CR, Krupski G, Adam G. Perkutane Pfortaderembolisation vor erweiterter Leberresektion: Volumenzuwachs und Erreichen der Operabilität bei 85 Patienten. ROFO-FORTSCHR RONTG 2009. [DOI: 10.1055/s-0029-1221648] [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]
|