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Jahangir S, Vecstaudza J, Augurio A, Canciani E, Stipniece L, Locs J, Alini M, Serra T. Cell-Laden 3D Printed GelMA/HAp and THA Hydrogel Bioinks: Development of Osteochondral Tissue-like Bioinks. Materials (Basel) 2023; 16:7214. [PMID: 38005143 PMCID: PMC10673417 DOI: 10.3390/ma16227214] [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] [Subscribe] [Scholar Register] [Received: 09/22/2023] [Revised: 11/03/2023] [Accepted: 11/09/2023] [Indexed: 11/26/2023]
Abstract
Osteochondral (OC) disorders such as osteoarthritis (OA) damage joint cartilage and subchondral bone tissue. To understand the disease, facilitate drug screening, and advance therapeutic development, in vitro models of OC tissue are essential. This study aims to create a bioprinted OC miniature construct that replicates the cartilage and bone compartments. For this purpose, two hydrogels were selected: one composed of gelatin methacrylate (GelMA) blended with nanosized hydroxyapatite (nHAp) and the other consisting of tyramine-modified hyaluronic acid (THA) to mimic bone and cartilage tissue, respectively. We characterized these hydrogels using rheological testing and assessed their cytotoxicity with live-dead assays. Subsequently, human osteoblasts (hOBs) were encapsulated in GelMA-nHAp, while micropellet chondrocytes were incorporated into THA hydrogels for bioprinting the osteochondral construct. After one week of culture, successful OC tissue generation was confirmed through RT-PCR and histology. Notably, GelMA/nHAp hydrogels exhibited a significantly higher storage modulus (G') compared to GelMA alone. Rheological temperature sweeps and printing tests determined an optimal printing temperature of 20 °C, which remained unaffected by the addition of nHAp. Cell encapsulation did not alter the storage modulus, as demonstrated by amplitude sweep tests, in either GelMA/nHAp or THA hydrogels. Cell viability assays using Ca-AM and EthD-1 staining revealed high cell viability in both GelMA/nHAp and THA hydrogels. Furthermore, RT-PCR and histological analysis confirmed the maintenance of osteogenic and chondrogenic properties in GelMA/nHAp and THA hydrogels, respectively. In conclusion, we have developed GelMA-nHAp and THA hydrogels to simulate bone and cartilage components, optimized 3D printing parameters, and ensured cell viability for bioprinting OC constructs.
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Affiliation(s)
- Shahrbanoo Jahangir
- AO Research Institute Davos, 7270 Davos, Switzerland; (S.J.); (A.A.); (M.A.)
| | - Jana Vecstaudza
- Rudolfs Cimdins Riga Biomaterials Innovations and Development Centre of RTU, Institute of General Chemical Engineering, Faculty of Materials Science and Applied Chemistry, Riga Technical University, Pulka 3, LV-1007 Riga, Latvia; (J.V.); (L.S.)
- Baltic Biomaterials Centre of Excellence Headquarters, LV-1007 Riga, Latvia
| | - Adriana Augurio
- AO Research Institute Davos, 7270 Davos, Switzerland; (S.J.); (A.A.); (M.A.)
| | - Elena Canciani
- Department of Health Sciences, Center for Translational Research on Allergic and Autoimmune Diseases (CAAD), University of Piemonte Orientale UPO, Corso Trieste 15/A, 28100 Novara, Italy;
| | - Liga Stipniece
- Rudolfs Cimdins Riga Biomaterials Innovations and Development Centre of RTU, Institute of General Chemical Engineering, Faculty of Materials Science and Applied Chemistry, Riga Technical University, Pulka 3, LV-1007 Riga, Latvia; (J.V.); (L.S.)
- Baltic Biomaterials Centre of Excellence Headquarters, LV-1007 Riga, Latvia
| | - Janis Locs
- Rudolfs Cimdins Riga Biomaterials Innovations and Development Centre of RTU, Institute of General Chemical Engineering, Faculty of Materials Science and Applied Chemistry, Riga Technical University, Pulka 3, LV-1007 Riga, Latvia; (J.V.); (L.S.)
- Baltic Biomaterials Centre of Excellence Headquarters, LV-1007 Riga, Latvia
| | - Mauro Alini
- AO Research Institute Davos, 7270 Davos, Switzerland; (S.J.); (A.A.); (M.A.)
| | - Tiziano Serra
- AO Research Institute Davos, 7270 Davos, Switzerland; (S.J.); (A.A.); (M.A.)
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Augurio A, Macchia G, Caravatta L, Lucarelli M, Di Gugliemo F, Vinciguerra A, Seccia B, De Sanctis V, Autorino R, Delle Curti C, Meregalli S, Perrucci E, Raspanti D, Cerrotta A. Contouring of emerging organs-at-risk (OARS) of the female pelvis and interobserver variability: A study by the Italian association of radiotherapy and clinical oncology (AIRO). Clin Transl Radiat Oncol 2023; 43:100688. [PMID: 37854671 PMCID: PMC10579954 DOI: 10.1016/j.ctro.2023.100688] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 09/30/2023] [Accepted: 10/05/2023] [Indexed: 10/20/2023] Open
Abstract
Purpose To provide straightforward instructions for daily practice in delineating emerging organs-at-risk (OARs) of the female pelvis and to discuss the interobserver variability in a two-step multicenter study. Methods and materials A contouring atlas with anatomical boundaries for each emerging OAR was realized by radiation oncologists and radiologists who are experts in pelvic imaging, as per their knowledge and clinical practice. These contours were identified as quality benchmarks for the analysis subsequently carried out. Radiation oncologists not involved in setting the custom-built contouring atlas and interested in the treatment of gynecological cancer were invited to participate in this 2-step trial. In the first step all participants were supplied with a selected clinical case of locally advanced cervical cancer and had to identify emerging OARs (Levator ani muscle; Puborectalis muscle; Internal anal sphincter; External anal sphincter; Bladder base and trigone; Bladder neck; Iliac Bone Marrow; Lower Pelvis Bone Marrow; Lumbosacral Bone Marrow) based on their own personal knowledge of pelvic anatomy and experience. The suggested OARs and the contouring process were then presented at a subsequent webinar meeting with a contouring laboratory. Finally, in the second step, after the webinar meeting, each participant who had joined the study but was not involved in setting the benchmark received the custom-built contouring atlas with anatomical boundaries and was requested to delineate again the OARs using the tool provided. The Dice Similarity Coefficient (DSC) and the Jaccard Similarity Coefficient (JSC) were used to evaluate the spatial overlap accuracy of the different volume delineations and compared with the benchmark; the Hausdorff distance (HD) and the mean distance to agreement (MDA) to explore the distance between contours. All the results were reported as sample mean and standard deviation (SD). Results Fifteen radiation oncologists from different Institutions joined the study. The participants had a high agreement degree for pelvic bones sub-structures delineation according to DICE (IBM: 0.9 ± 0.02; LPBM: 0.91 ± 0.01). A moderate degree according to DICE was showed for ovaries (Right: 0.61 ± 0.16, Left: 0.72 ± 0.05), vagina (0.575 ± 0.13), bladder sub-structures (0.515 ± 0.08) and EAS (0.605 ± 0.05), whereas a low degree for the other sub-structures of the anal-rectal sphincter complex (LAM: 0.345 ± 0.07, PRM: 0.41 ± 0.10, and IAS: 0.4 ± 0.07). Conclusion This study found a moderate to low level of agreement in the delineation of the female pelvis emerging OARs, with a high degree of variability among observers. The development of delineation tools should be encouraged to improve the routine contouring of these OARs and increase the quality and consistency of radiotherapy planning.
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Affiliation(s)
- A. Augurio
- Department of Radiation Oncology, SS. Annunziata Hospital, Via Dei Vestini, 66100 Chieti, Italy
| | - G. Macchia
- Radiation Oncology Unit, Gemelli Molise Hospital, Università Cattolica del Sacro Cuore, Largo Agostino Gemelli, 1, 86100 Campobasso, Italy
| | - L. Caravatta
- Department of Radiation Oncology, SS. Annunziata Hospital, Via Dei Vestini, 66100 Chieti, Italy
| | - M. Lucarelli
- Department od Radiotion Oncology, SS Annunziata Hospital, "G. D'Annunzio" University, Via dei Vestini, 66100 Chieti, Italy
| | - F. Di Gugliemo
- Department od Radiotion Oncology, SS Annunziata Hospital, "G. D'Annunzio" University, Via dei Vestini, 66100 Chieti, Italy
| | - A. Vinciguerra
- Department of Radiation Oncology, SS. Annunziata Hospital, Via Dei Vestini, 66100 Chieti, Italy
| | - B. Seccia
- Department of Neuroscience, Imaging and Clinical Sciences, “G. D’Annunzio” University, Via Luigi Polacchi 11, 66100 Chieti, Italy
| | - V. De Sanctis
- Radiotherapy Oncology, Department of Medicine and Surgery and Translational Medicine, Sapienza University of Rome, S. Andrea Hospital, Via di Grottarossa 1035, 00189 Rome, Italy
| | - R. Autorino
- Oncological Radiotherapy Unit, Department of Diagnostic Imaging, Oncological Radiotherapy and Hematology, Fondazione Policlinico Universitario A. Gemelli IRCCS, Via Giuseppe Moscati, 31, 00168 Rome, Italy
| | - C. Delle Curti
- Radioterapia Oncologica, Fondazione IRCS, Istituto Nazionale dei Tumori di Milano, Via Giacomo Venezian, 1, 20133 Milano, Italy
| | - S. Meregalli
- Radiotherapy Unit, Azienda Ospedaliera San Gerardo, Via G. B. Pergolesi, 33, 20900 Monza, Italy
| | - E. Perrucci
- Radiation Oncology Section, Perugia General Hospital, Piazzale Giorgio Menghini, 3, 06129 Perugia, Italy
| | - D. Raspanti
- Temasinergie S.p.A., Via Marcello Malpighi 120, Faenza, Italy
| | - A. Cerrotta
- Radioterapia Oncologica, Fondazione IRCS, Istituto Nazionale dei Tumori di Milano, Via Giacomo Venezian, 1, 20133 Milano, Italy
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Lucarelli M, Caravatta L, Augurio A, Vinciguerra A, Di Tommaso M, Genovesi D. PO-1051 Analysis Of A Mono-Institutional Internal Procedure Protocol During Covid-19 Second Wave. Radiother Oncol 2022. [PMCID: PMC9153883 DOI: 10.1016/s0167-8140(22)03015-8] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Augurio A, Alvarez-Fernandez A, Panchal V, Pittenger B, De Wolf P, Guldin S, Briscoe J. Controlled Porosity in Ferroelectric BaTiO 3 Photoanodes. ACS Appl Mater Interfaces 2022; 14:13147-13157. [PMID: 35271773 PMCID: PMC8949718 DOI: 10.1021/acsami.1c17419] [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] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Accepted: 01/14/2022] [Indexed: 05/17/2023]
Abstract
The use of ferroelectric polarization to promote electron-hole separation has emerged as a promising strategy to improve photocatalytic activity. Although ferroelectric thin films with planar geometry have been largely studied, nanostructured and porous ferroelectric thin films have not been commonly used in photo-electrocatalysis. The inclusion of porosity in ferroelectric thin films would enhance the surface area and reactivity, leading to a potential improvement of the photoelectrochemical (PEC) performance. Herein, the preparation of porous barium titanate (pBTO) thin films by a soft template-assisted sol-gel method is reported, and the control of porosity using different organic/inorganic ratios is verified by the combination of scanning electron microscopy and ellipsometry techniques. Using piezoresponse force microscopy, the switching of ferroelectric domains in pBTO thin films is observed, confirming that the ferroelectric polarization is still retained in the porous structures. In addition, the presence of porosity in pBTO thin films leads to a clear improvement of the PEC response. By electrochemical poling, we also demonstrated the tuning of the PEC performance of pBTO thin films via ferroelectric polarization. Our work offers a simple and low-cost approach to control the morphology optimization of ferroelectric thin films, which could open up the development of materials with great potential for PEC applications.
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Affiliation(s)
- Adriana Augurio
- School
of Engineering and Material Science and Materials Research Institute, Queen Mary University of London, E1 4NS London, U.K.
| | - Alberto Alvarez-Fernandez
- Department
of Chemical Engineering, University College
London, Torrington Place, WC1E 7JE London, U.K.
| | | | - Bede Pittenger
- AFM
Unit, Bruker Nano Surfaces, 93117 Santa Barbara, California, United States
| | - Peter De Wolf
- AFM
Unit, Bruker Nano Surfaces, 93117 Santa Barbara, California, United States
| | - Stefan Guldin
- Department
of Chemical Engineering, University College
London, Torrington Place, WC1E 7JE London, U.K.
| | - Joe Briscoe
- School
of Engineering and Material Science and Materials Research Institute, Queen Mary University of London, E1 4NS London, U.K.
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Fasciolo D, Fasciolo D, Rosa C, Marchione M, Borgia M, Lucarelli M, Vinciguerra A, Augurio A, Caravatta L, Genovesi D. PO-1381 Toxicity outcomes of salvage versus adjuvant radiotherapy for prostate cancer using VMAT and IMRT. Radiother Oncol 2021. [DOI: 10.1016/s0167-8140(21)07832-4] [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: 11/28/2022]
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Rosa C, Gasparini L, Di Guglielmo F, Delli Pizzi A, Seccia B, Cianci R, Basilico R, Augurio A, Ursini L, Porreca A, Di Nicola M, Caravatta L, Genovesi D. OC-0567: T2 and Apparent Diffusion Coefficient MRI for Cervical cancer delineation: agreement between volumes. Radiother Oncol 2020. [DOI: 10.1016/s0167-8140(21)00589-2] [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: 11/25/2022]
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Patani F, Fasciolo D, Allajbej A, Trignani M, Di Tommaso M, Augurio A, Vinciguerra A, Caravatta L, Genovesi D. PO-1183: Do we need sigma constraints in era of intensity-modulated radiation therapy for prostate cancer? Radiother Oncol 2020. [DOI: 10.1016/s0167-8140(21)01201-9] [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: 11/26/2022]
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Allajbei A, Patani F, Trignani M, Di Pilla A, Bagalà P, Vinciguerra A, Augurio A, Caravaggio G, Falco M, Genovesi D. PO-129 Set-up errors in head and neck cancer patients undergoing IGRT. Relationship to BMI and weight loss. Radiother Oncol 2019. [DOI: 10.1016/s0167-8140(19)30295-6] [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]
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Rosa C, Di Tommaso M, Caravatta L, Taraborrelli M, Augurio A, Di Biase S, Zecca I, Di Nicola M, Genovesi D. EP-1491: Neoadjuvant chemoradiotherapy in rectal cancer patients in a 15-year single institutional experience. Radiother Oncol 2018. [DOI: 10.1016/s0167-8140(18)31800-0] [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: 11/24/2022]
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Di Biase S, Trignani M, Di Carlo C, Voicu I, Gentile L, Augurio A, Caulo M, Vinciguerra A, Genovesi D. EP-1643: Applicability of reference atlases to hippocampal contouring in paediatric radiotherapy. Radiother Oncol 2018. [DOI: 10.1016/s0167-8140(18)31952-2] [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: 11/16/2022]
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Di Carlo C, Trignani M, Caravatta L, Vinciguerra A, Augurio A, Perrotti F, Di Tommaso M, Nuzzo M, Giancaterino S, Falco MD, Genovesi D. Hippocampal sparing in stereotactic radiotherapy for brain metastases: To contour or not contour the hippocampus? Cancer Radiother 2018; 22:120-125. [PMID: 29576492 DOI: 10.1016/j.canrad.2017.08.113] [Citation(s) in RCA: 4] [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] [Received: 01/25/2017] [Revised: 05/23/2017] [Accepted: 08/10/2017] [Indexed: 11/27/2022]
Abstract
PURPOSE The aim of our study was to evaluate hippocampal irradiation in patients treated with fractionated stereotactic brain radiotherapy. PATIENTS AND METHODS Retrospective hippocampal dosimetric analysis performed on 22 patients with one to four brain metastases treated with fractionated stereotactic radiotherapy using volumetric intensity-modulated arc therapy. Original plans did not include hippocampus as avoidance structure in optimization criteria; hippocampus was retrospectively delineated on magnetic resonance coregistered with planning CT and using as reference the RTOG 0933 atlas. Hippocampus was defined both as a single and as pair organ. Constraints analysed were: Dmax<16Gy, D40%<7.3Gy, D100%=Dmin<9Gy. Assuming a α/β ratio of 2Gy, biologically equivalent dose in 2Gy fractions was calculated. Hippocampal-sparing plans were developed in cases where hippocampal constraints were not respected in the original plan. RESULTS Among constraints analysed Dmax and D40% have been exceeded in ten out of 22 cases. The constraints were not respected in patients with more than one metastatic lesion and in three patients with only one lesion. Considering all exceeded constraints values in non-hippocampal sparing plans, the 50% of them was respected after replanning. No significant differences were found among conformity and homogeneity index between non-hippocampal sparing and hippocampal sparing plans. CONCLUSION Volumetric intensity-modulated arc therapy hippocampal sparing plans significantly decreases dose to hippocampus assuring an equal target coverage and organs at risk avoiding.
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Affiliation(s)
- C Di Carlo
- Department of Radiation Oncology, "G. D'Annunzio" University of Chieti, SS. Annunziata Hospital, Via Dei Vestini, 66100 Chieti, Italy
| | - M Trignani
- Department of Radiation Oncology, "G. D'Annunzio" University of Chieti, SS. Annunziata Hospital, Via Dei Vestini, 66100 Chieti, Italy
| | - L Caravatta
- Department of Radiation Oncology, "G. D'Annunzio" University of Chieti, SS. Annunziata Hospital, Via Dei Vestini, 66100 Chieti, Italy
| | - A Vinciguerra
- Department of Radiation Oncology, "G. D'Annunzio" University of Chieti, SS. Annunziata Hospital, Via Dei Vestini, 66100 Chieti, Italy
| | - A Augurio
- Department of Radiation Oncology, "G. D'Annunzio" University of Chieti, SS. Annunziata Hospital, Via Dei Vestini, 66100 Chieti, Italy
| | - F Perrotti
- Department of Radiation Oncology, "G. D'Annunzio" University of Chieti, SS. Annunziata Hospital, Via Dei Vestini, 66100 Chieti, Italy
| | - M Di Tommaso
- Department of Radiation Oncology, "G. D'Annunzio" University of Chieti, SS. Annunziata Hospital, Via Dei Vestini, 66100 Chieti, Italy
| | - M Nuzzo
- Department of Radiation Oncology, "G. D'Annunzio" University of Chieti, SS. Annunziata Hospital, Via Dei Vestini, 66100 Chieti, Italy
| | - S Giancaterino
- Department of Radiation Oncology, "G. D'Annunzio" University of Chieti, SS. Annunziata Hospital, Via Dei Vestini, 66100 Chieti, Italy
| | - M D Falco
- Department of Radiation Oncology, "G. D'Annunzio" University of Chieti, SS. Annunziata Hospital, Via Dei Vestini, 66100 Chieti, Italy
| | - D Genovesi
- Department of Radiation Oncology, "G. D'Annunzio" University of Chieti, SS. Annunziata Hospital, Via Dei Vestini, 66100 Chieti, Italy.
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Di Carlo C, Di Biase S, Caravatta L, Caponigro G, Rosa C, Di Biase M, Perrotti F, Trignani M, Vinciguerra A, Augurio A, Giancaterino S, De Nicola A, Falco M, Genovesi D. EP-1123: To contour or not contour hippocampus in stereotactic brain radiotherapy? A dosimetric study. Radiother Oncol 2017. [DOI: 10.1016/s0167-8140(17)31559-1] [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: 11/17/2022]
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13
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Di Biase M, Trignani M, Caponigro G, Di Pilla A, Perrotti F, Augurio A, Giancaterino S, Bagalà P, Falco M, Genovesi D. EP-1783: Translational and rotational set-up uncertainties in Head and Neck cancer treatments using CBCT. Radiother Oncol 2016. [DOI: 10.1016/s0167-8140(16)33034-1] [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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14
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Genovesi D, Ausili Cèfaro G, Trignani M, Vinciguerra A, Augurio A, Di Tommaso M, Perrotti F, De Paoli A, Olmi P, Valentini V, Di Nicola M. Interobserver variability of clinical target volume delineation in soft-tissue sarcomas. Cancer Radiother 2014; 18:89-96. [PMID: 24440683 DOI: 10.1016/j.canrad.2013.11.011] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [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: 05/07/2013] [Revised: 11/03/2013] [Accepted: 11/28/2013] [Indexed: 11/28/2022]
Abstract
PURPOSE The present observational study reports the results of a multi-institutional dummy-run designed to estimate the consistency of interobserver variability in clinical target volume delineation in two different cases of soft-tissue sarcomas in which postoperative and preoperative radiotherapy were prescribed, respectively. The purpose of this work was to quantify interobserver variability in routine clinical practice. PATIENTS AND METHODS Two different cases of soft-tissues sarcomas were chosen: a case of postoperative and a case of preoperative radiation therapy. Participating centres were requested to delineate clinical target volumes according to their experience in both cases. Descriptive statistic was calculated for each variable (volume, diameters) separately for two cases. Box-whiskers plots were used for presentation of clinical target volume. A Shapiro-Wilk's test was performed to evaluate the departures from normality distribution for each variable. The comparison between relative variations of diameters was evaluated using the Student's t test. RESULTS Several variations affecting both volumes and diameters were observed. Main variations were observed in the craniocaudal and laterolateral diameters. Each case showed similar dispersion, indicating a lack of reproducibility in volumes definition. CONCLUSIONS This observational study highlighted that, in the absence of specific instructions or guidelines, the interobserver variability can be significant both in postoperative and preoperative radiotherapy of soft-tissue sarcomas.
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Affiliation(s)
- D Genovesi
- Department of Radiotherapy, SS. Annunziata Hospital, "G. D'Annunzio" University, via dei Vestini, 66100 Chieti, Italy.
| | - G Ausili Cèfaro
- Department of Radiotherapy, SS. Annunziata Hospital, "G. D'Annunzio" University, via dei Vestini, 66100 Chieti, Italy
| | - M Trignani
- Department of Radiotherapy, SS. Annunziata Hospital, "G. D'Annunzio" University, via dei Vestini, 66100 Chieti, Italy
| | - A Vinciguerra
- Department of Radiotherapy, SS. Annunziata Hospital, "G. D'Annunzio" University, via dei Vestini, 66100 Chieti, Italy
| | - A Augurio
- Department of Radiotherapy, SS. Annunziata Hospital, "G. D'Annunzio" University, via dei Vestini, 66100 Chieti, Italy
| | - M Di Tommaso
- Department of Radiotherapy, SS. Annunziata Hospital, "G. D'Annunzio" University, via dei Vestini, 66100 Chieti, Italy
| | - F Perrotti
- Department of Radiotherapy, SS. Annunziata Hospital, "G. D'Annunzio" University, via dei Vestini, 66100 Chieti, Italy
| | - A De Paoli
- Department of Radiotherapy C.R.O., Aviano, Italy
| | - P Olmi
- Department of Radiotherapy, Istituto Nazionale Tumori, Milano, Italy
| | - V Valentini
- Department of Radiotherapy "Cattolica Sacro Cuore" University, Roma, Italy
| | - M Di Nicola
- Department of Experimental and Clinical Sciences, Laboratory of Biostatistics, "G. D'Annunzio" University, Chieti, Italy
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Genovesi D, Filippone A, Ausili Cèfaro G, Trignani M, Vinciguerra A, Augurio A, Di Tommaso M, Borzillo V, Sabatino F, Innocenti P, Liberatore E, Colecchia G, Tartaro A, Cotroneo AR. Diffusion-weighted magnetic resonance for prediction of response after neoadjuvant chemoradiation therapy for locally advanced rectal cancer: preliminary results of a monoinstitutional prospective study. Eur J Surg Oncol 2013; 39:1071-8. [PMID: 23953231 DOI: 10.1016/j.ejso.2013.07.090] [Citation(s) in RCA: 60] [Impact Index Per Article: 5.5] [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: 01/12/2012] [Revised: 05/08/2013] [Accepted: 07/25/2013] [Indexed: 12/21/2022] Open
Abstract
PURPOSE To evaluate diffusion-weighted imaging (DWI) for assessment of treatment response in locally advanced rectal cancer (LARC) 8 weeks after neoadjuvant chemoradiotherapy (CRT). METHODS AND MATERIALS A total of 28 patients with LARC underwent magnetic resonance imaging (MRI) prior to and 8 weeks after CRT. Tumor volume (TV) was calculated on T2-weighted MRI scans as well as the apparent diffusion coefficient (ADC) was calculated using Echo-planar DWI-sequences. All data were correlated to surgical results and histopathologic tumor regression grade (TRG), according to Mandard's classification. Post-treatment difference ADC (%ΔADC) and TV (%ΔTV) changes at 8 weeks were compared complete response (CR; TRG1) and non-complete response tumors (non-CR; TRG2-5). RESULTS The mean % ADC increase of CR group was significantly higher compared to non-CR group (77.2 ± 54.63% vs. 36.0 ± 29.44%; p = 0.05). Conversely, the mean % TV reduction did not significantly differ in CR group from non-CR group (73.7% vs. 63.77%; p = 0.21). Accordingly, the diagnostic accuracy of the mean % ADC increase to discriminate CR from non-CR group was significantly higher than that of the mean % TV reduction (0.913 vs. 0.658; p = 0.022). No correlation was found between mean % TV reduction and TRG (rho = 0.22; p = 0.3037), whereas a negative correlation between mean % ADC increase and TRG was recorded (r = -0.69; p = 0.006). CONCLUSION The mean % ADC increase appears to be a reliable tool to differentiate CR from non-CR after CRT in patients with LARC.
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Affiliation(s)
- D Genovesi
- Radiation Oncology Department, "G. d'Annunzio" University of Chieti, "SS. Annunziata" Hospital, Chieti, Italy.
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Moretti A, Vitullo F, Augurio A, Pacella A, Croce A. Surgical management of lip cancer. Acta Otorhinolaryngol Ital 2011; 31:5-10. [PMID: 21808457 PMCID: PMC3146335] [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] [MESH Headings] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/16/2009] [Accepted: 01/15/2011] [Indexed: 11/17/2022]
Abstract
Lip cancer is the most frequent malignant neoplasm of the oral cavity. The study reported herewith refers to the clinico-pathological features and surgical treatment of lip cancer. The most frequent tumour related to the lips is squamous cell carcinoma, with the lower lip more commonly involved than the upper lip. Typically, squamous cell carcinoma originates in the red lip, whereas basal cell carcinoma involves the white lip. The management of lip cancer involves the control not only of the primary tumours with oncologically appropriate margins and subsequent reconstruction to allow oral competence during the oral phase of swallowing, but also the possible metastatic spread to the neck. Reconstruction is a surgical challenge especially for advanced and extended lesions. A successful reconstruction depends on careful pre-operative planning, knowledge of the anatomy and use of the various surgical techniques. Lymph node neck metastases significantly reduce long-term survival. Although the management of the neck is controversial in lip cancer, particularly with respect to the neck, elective or curative supra-omohyoid neck dissection is the best choice for occult or evident loco-regional metastases. Early stage tumours have good prognostic, aesthetic and functional results after surgery compared to the treatment of advanced lesions, which alter the appearance and functionality of the lip. The Authors report their experience in the treatment of lip tumours at the primary site, considering reconstructive problems, together with management of neck metastases.
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Affiliation(s)
- A Moretti
- ENT Clinic, Department of Surgical, Experimental and Clinical Sciences, "G. D'Annunzio" University of Chieti- Pescara, Italy.
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Croce A, D'Agostino L, Moretti A, Augurio A. Parotid surgery in patients over seventy-five years old. Acta Otorhinolaryngol Ital 2008; 28:231-238. [PMID: 19186451 PMCID: PMC2689531] [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] [MESH Headings] [Subscribe] [Scholar Register] [Received: 06/06/2007] [Accepted: 04/24/2008] [Indexed: 05/27/2023]
Abstract
Malignant parotid tumours are generally rare but become more common in the last decades of life; this increased incidence concerns mainly secondary parotid space involvement from metastasis or direct invasion. During the past five years, we observed and operated upon 84 patients for parotid diseases, performing 86 parotidectomies (2 bilateral operations). The patients included 30 (35.7%) over 75 years old (2 subjects over 90), mean age 80.5 years, object of the present study. In these 30 patients 2 chronic infections were observed, 6 benign tumours and 22 malignant tumours with only 6 primary neoplastic lesions. Overall, 14 extended radical parotidectomies were performed, 13 conservative total parotidectomies, 2 superficial parotidectomies and 1 radical parotidectomy, a few associated with neck dissection and/or radiotherapy. Three patients died in the post-operative period from heart attack. Five patients died from disease (3 from melanomas--2 after 3 years and 1 after 2 years--and 2 from primary carcinomas--1 after 2 years and 1 after 1 year). Six patients died without disease from various causes (2 after 4 years, the others after 3, 2, 1 year and 8 months). Nine patients are alive, 8 NED and 1 with disease in the ethmoid after 2 years, the latter well under control with radiotherapy. This experience implies that surgical treatment of these secondary tumours, which are performed more frequently in old age, exposes the patient to the risk of serious complications (3 patients died in the immediate post-operative period) and stresses the importance of careful evaluation of general conditions. However, surgery seems to have been the treatment indicated also in the patients who subsequently died from the disease, but in whom at least two-year survival was achieved in almost all cases. Unfortunately, because of the advanced age of the patients, the final results are penalized by deaths from natural causes. It is, nevertheless, encouraging that over one third of the patients operated upon are free of disease.
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Affiliation(s)
- A Croce
- Department of Surgical Sciences, Experimental and Clinical, Otorhinolaryngology Unit, "G. D'Annunzio" University of Chieti-Pescara, Chieti, Italy.
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