Volume 25, Issue 6 pp. 1015-1022
Original Researh

Variations of ITSS-Morphology and their Relationship to Location and Tumor Volume in Patients with Glioblastoma

Delia Fahrendorf

Corresponding Author

Delia Fahrendorf

Department of Clinical Radiology, University Hospital Münster, Münster, Germany

Correspondence: Address correspondence to Delia Fahrendorf, Department of Clinical Radiology, University Hospital Münster, Münster, Germany. E-mail: [email protected].Search for more papers by this author
Volker Hesselmann

Volker Hesselmann

Department of Neuroradiology, Asklepios Clinic Nord—Heidberg, Hamburg, Germany

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Wolfram Schwindt

Wolfram Schwindt

Department of Clinical Radiology, University Hospital Münster, Münster, Germany

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Johannes Wölfer

Johannes Wölfer

Department of Neurosurgery, University Hospital Münster, Münster, Germany

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Astrid Jeibmann

Astrid Jeibmann

Institute of Neuropathology, University Hospital Münster, Münster, Germany

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Hendrik Kooijman

Hendrik Kooijman

Department of Clinical Radiology, University Hospital Münster, Münster, Germany

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Harald Kugel

Harald Kugel

Philips Healthcare, Clinical Application, Lübeckertordamm, Hamburg, Germany

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Walter Heindel

Walter Heindel

Department of Clinical Radiology, University Hospital Münster, Münster, Germany

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Andrea Bink

Andrea Bink

Department of Radiology, Division of Diagnostic and Interventional Neuroradiology, University Hospital Basel

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First published: 20 February 2015
Citations: 9

Conflict of interest: We declare that we have no conflict of interest.

ABSTRACT

BACKGROUND

Susceptibility weighted imaging and assessment of intratumoral susceptibility signal (ITSS) morphology is used to identify high-grade glioma (HGG) in patients with suspected brain neoplasm.

PURPOSE

The aim of this study was to outline variations in ITSS-morphology and their relationship to location as well as volume of the lesion in patients with glioblastoma (GB).

MATERIALS AND METHODS

Contrast-enhanced SWI (CE-SWI) images of 40 patients with histologically confirmed GB were analyzed retrospectively with particular attention to ITSS-morphology dividing all lesions into two groups. Considering the location of the lesion within brain parenchyma, lesions with and without involvement of the subventricular zone (SVZ+/SVZ−) were discerned. Additionally, the contrast-enhancing tumor volume was evaluated. Statistical analysis was based on a classification analysis resulting in a classification rule (tree) as well as Mann-Whitney-U test.

RESULTS

The distribution of ITSS-scores showed differences between the SVZ+ and SVZ− groups. While SVZ-GB showed only fine-linear or dot-like ITSS, in SVZ+ GB the ITSS-morphology changed with the tumor volume, that is, in larger tumors dense and conglomerated ITSS were the predominant finding.

CONCLUSION

Our findings indicate that ITSS-morphology is not a random phenomenon. Location of GB, as well as tumor volume, appear to be factors contributing to ITSS morphology.

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