Editorial for “Magnetic Resonance Imaging‐Based Radiomics Nomogram for Prediction of the Histopathological Grade of Soft Tissue Sarcomas: A Two‐Center Study”

2021 ◽  
Author(s):  
Christopher J. Hanrahan
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Soft Tissue ◽  
Soft Tissue Sarcomas ◽  
Resonance Imaging ◽  
Histopathological Grade ◽  
Center Study

scholarly journals Manual versus semiautomatic segmentation of soft-tissue sarcomas on magnetic resonance imaging: evaluation of similarity and comparison of segmentation times

2021 ◽  
Vol 54 (3) ◽  
pp. 155-164
Author(s):  
Fernando Carrasco Ferreira Dionisio ◽  
Larissa Santos Oliveira ◽  
Mateus de Andrade Hernandes ◽  
Edgard Eduard Engel ◽  
Paulo Mazzoncini de Azevedo-Marques ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Soft Tissue ◽  
Soft Tissue Sarcomas ◽  
Dice Similarity Coefficient ◽  
Intraobserver Variability ◽  
Resonance Imaging ◽  
Semiautomatic Segmentation ◽  
Significant Difference ◽  
Degree Of Similarity

Abstract Objective: To evaluate the degree of similarity between manual and semiautomatic segmentation of soft-tissue sarcomas on magnetic resonance imaging (MRI). Materials and Methods: This was a retrospective study of 15 MRI examinations of patients with histopathologically confirmed soft-tissue sarcomas acquired before therapeutic intervention. Manual and semiautomatic segmentations were performed by three radiologists, working independently, using the software 3D Slicer. The Dice similarity coefficient (DSC) and the Hausdorff distance were calculated in order to evaluate the similarity between manual and semiautomatic segmentation. To compare the two modalities in terms of the tumor volumes obtained, we also calculated descriptive statistics and intraclass correlation coefficients (ICCs). Results: In the comparison between manual and semiautomatic segmentation, the DSC values ranged from 0.871 to 0.973. The comparison of the volumes segmented by the two modalities resulted in ICCs between 0.9927 and 0.9990. The DSC values ranged from 0.849 to 0.979 for intraobserver variability and from 0.741 to 0.972 for interobserver variability. There was no significant difference between the semiautomatic and manual modalities in terms of the segmentation times (p > 0.05). Conclusion: There appears to be a high degree of similarity between manual and semiautomatic segmentation, with no significant difference between the two modalities in terms of the time required for segmentation.

Clinical significance of the tail-like pattern in soft-tissue sarcomas on magnetic resonance imaging

2018 ◽  
Vol 23 (6) ◽  
pp. 1032-1037 ◽  
Author(s):  
Takeshi Morii ◽  
Takashi Tajima ◽  
Keita Honya ◽  
Takayuki Aoyagi ◽  
Shoichi Ichimura
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Soft Tissue ◽  
Clinical Significance ◽  
Soft Tissue Sarcomas ◽  
Resonance Imaging

Therapy monitoring in human and canine soft tissue sarcomas using magnetic resonance imaging and spectroscopy

1994 ◽  
Vol 28 (2) ◽  
pp. 415-423 ◽  
Author(s):  
Deborah M. Prescott ◽  
H. Cecil Charles ◽  
H. Dirk Sostman ◽  
Richard K. Dodge ◽  
Donald E. Thrall ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Soft Tissue ◽  
Therapy Monitoring ◽  
Soft Tissue Sarcomas ◽  
Resonance Imaging ◽  
Imaging And Spectroscopy

Detection of local recurrences of limb soft-tissue sarcomas: Is magnetic resonance imaging (MRI) relevant?

2009 ◽  
Vol 27 (15_suppl) ◽  
pp. 10582-10582
Author(s):  
G. Ferron ◽  
R. Aziza ◽  
M. Delannes ◽  
T. Filleron ◽  
B. Marquès ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Soft Tissue ◽  
Clinical Examination ◽  
Soft Tissue Sarcomas ◽  
Adult Patients ◽  
Resonance Imaging ◽  
Local Recurrences ◽  
Magnetic Resonance Imaging Mri ◽  
Mri Surveillance

10582 Background: The role of systematic magnetic resonance imaging (MRI) surveillance after resection of soft-tissue sarcomas (STS) of the limb is opened to debate. The aim of our study was to retrospectively evaluate the effectiveness of a MRI surveillance schedule performed in adult patients. Methods: 124 adult patients have been treated from 1996 to 2006 for a non-metastatic limb STS at our centre: 86 patients (70%) had clear resection margins (R0) and 111 patients (90%) received an adjuvant radiotherapy. 663 MRI examinations were performed, with a median of 5 per patient [range: 1 to 5]. The rythm of surveillance schedule was respected in 57% of the examinations. Results: Forty-one patients (33%) prematurely withdrew from the planned radiological surveillance due to metastasis diagnosis (15 cases), 5-year remission duration (5 cases), other reasons (12 cases), and drop out (9 cases). Among the 11 local recurrences (9%) which were observed, MRI was able to detect only 2 asymptomatic local recurrences, 1 with and 1 without synchronous metastasis, both had microscopically involved margins (R1). In contrast, MRI showed 11 false-positive cases. As the predictive positive value of MRI was 42%, clinical surveillance seems to be more effective. The evaluation of the cost of the systematic MRI surveillance is 200,000 euros. Clinical examination failed in 2 cases (2 asymptomatic local recurrences detected by MRI) as did MRI surveillance (2 false negative cases). In our study, cost-effectiveness was better with clinical examination than MRI surveillance. Conclusions: As observed in our study, systematic MRI surveillance is not relevant for the follow-up of all limb soft-tissue sarcomas. A prospective study could be promoted to evaluate the MRI surveillance of patient at high risk of local recurrence. No significant financial relationships to disclose.

Diffusion-weighted echo-planar magnetic resonance imaging for the assessment of tumor cellularity in patients with soft-tissue sarcomas

2009 ◽  
Vol 29 (6) ◽  
pp. 1355-1359 ◽  
Author(s):  
Dirk Schnapauff ◽  
Martin Zeile ◽  
Manuel Ben Niederhagen ◽  
Barbara Fleige ◽  
Per-Ulf Tunn ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Soft Tissue ◽  
Soft Tissue Sarcomas ◽  
Resonance Imaging ◽  
Diffusion Weighted ◽  
Echo Planar
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