AbstractAbstract
[en] Between 1974 and 1981 a group of 234 patients with generally advanced regional cancers were treated with pions at the Los Alamos Meson Production Facility (LAMPF). As of May 1983, 53 patients remained alive of which 31 were examined. Records on these and others were reviewed in order to assess some late effects of pion therapy. In judging clinical RBE values there appeared to be no difference between acute and late effect RBE's. Complications were clearly dose-related and significantly greater in patients who received additional local photon irradiation and/or surgery. Tumor control also appeared dose related but difficult to assess because of a wide range of fractionation numbers. (author)
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Journal Article
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Radiatsiya i Meditsina; ISSN 0288-2043; ; v. 1(4); p. 314-319
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ANTIMATTER, ANTIMESONS, ANTIPARTICLES, BIOLOGICAL EFFECTS, BIOLOGICAL RADIATION EFFECTS, BODY, BOSONS, DIGESTIVE SYSTEM, DISEASES, ELEMENTARY PARTICLES, FEMALE GENITALS, GASTROINTESTINAL TRACT, GLANDS, HADRONS, INTESTINES, LARGE INTESTINE, MALE GENITALS, MATTER, MEDICINE, MESONS, NEOPLASMS, ORGANS, PIONS, PSEUDOSCALAR ANTIMESONS, PSEUDOSCALAR MESONS, RADIATION EFFECTS, THERAPY, URINARY TRACT
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Essen, C.F. von; Blattmann, H.; Perret, Ch.; Vecsey, G.; Blaser, J.P.
High-LET radiations in clinical radiotherapy1979
High-LET radiations in clinical radiotherapy1979
AbstractAbstract
No abstract available
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Source
Barendsen, G.W.; Broerse, J.J.; Breur, K. (eds.); Gezondheidsorganisatie TNO, Rijswijk (Netherlands). Radiobiologisch Inst. TNO; p. 222-223; ISBN 0 08 024383 5; ; 1979; p. 222-223; Pergamon; Oxford; 3. meeting on fundamental and practical aspects of the application of fast neutrons and other high-LET particles in clinical radiotherapy; The Hague, Netherlands; 13 - 15 Sep 1978; Brief item.
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Book
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Conference
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ACCELERATORS, ANIMALS, BEAMS, BIOLOGICAL EFFECTS, BIOLOGICAL RADIATION EFFECTS, BOSONS, CYCLIC ACCELERATORS, CYCLOTRONS, DISEASES, DOSIMETRY, ELEMENTARY PARTICLES, HADRONS, INJURIES, ISOCHRONOUS CYCLOTRONS, MAMMALS, MEDICINE, MESON BEAMS, MESONS, PARTICLE BEAMS, PRIMATES, PSEUDOSCALAR MESONS, RADIATION EFFECTS, RESEARCH PROGRAMS, THERAPY, VERTEBRATES
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AbstractAbstract
No abstract available
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Letters to the editor.
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Journal Article
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British Journal of Radiology; ISSN 0007-1285; ; v. 55(660); p. 936-937
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Essen, C.F. von; Bodendoerfer, G.; Greiner, R.; Zimmermann, A.; Schmitt, G.
Third international meeting on progress in radio-oncology1985
Third international meeting on progress in radio-oncology1985
AbstractAbstract
No abstract available
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Source
Vienna Univ. (Austria). Klinik fuer Strahlentherapie und Strahlenbiologie; 88 p; 1985; p. 56; Third international meeting on progress in radio-oncology; Vienna (Austria); 27-30 Mar 1985; Published in summary form only.
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Miscellaneous
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Conference
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AbstractAbstract
[en] Seventeen patients (13 with bladder cancer Ta to T4, 2 with pancreas cancer, 1 each with biliary tract and renal cancer) have been treated with dynamc pion spot scan conformation techniques. Pion doses ranged from 1,900 to 3,600 rads in 7 to 20 fractions. In a follow-up period of 10 to 20 months 9 patients are alive, 1 with active local disease, 1 patient is well following salvage cystectomy, 1 patient has a severe late radiation cystitis, and 6 patients died of metastatic disease, none with local recurrence although microscopic disease was found in 4 of 5 autopsies. It is concluded that this technique is practical and continued dose and volume optimization for these and other sites continue. (author)
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Source
16. Japan conference on radiation and radioisotopes; Tokyo (Japan); 6-8 Dec 1983
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Journal Article
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Conference
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Nippon Aisotopu Hoshasen Sogo Kaigi Hobunshu; CODEN NAHHE; (no.16); p. 250-262
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AbstractAbstract
[en] The experiences of the treatment of bladder carcinoma indicated the direction in which the dose optimization program of intraabdominal tumours can be carried out. Smaller intraabdominal target volumes seem to tolerate total doses from 31 to 33 Gy applied in 20 fractions. The best results with local tumour control and low complication rates have so far been reached in carcinoma of the cervix. It has not so far been organizationally possible at SIN to treat with pions on more than four days per week. This restricts changes to the fractionation scheme in the treatment of highly malignant gliomas. An improvement of results could be possible on the basis of experience to date. The significance of a postbiopsy preoperative radiotherpay, of the increase of target volume and the increase of the total dose will be tested in a study by the SAKK (Swiss Group for Clinical Cancer Research). (orig.)
[de]
Die bei der Behandlung des Blasenkarzinoms gemachten Erfahrungen haben gezeigt, in welcher Richtung an einer Optimierung der Dosisplanung bei Tumoren im Bereich des Abdomens gearbeitet werden kann. Kleine intraabdominale Zielvolumina scheinen Gesamtdosen von 31 bis 33 Gy, in 20 Fraktionen verabreicht, zu tolerieren. Bis jetzt wurden die besten Ergebnisse mit lokaler Tumorkontrolle und niedrigen Komplikationsraten beim Zervixkarzinom erzielt. Bisher war die Pionenbehandlung am SIN an mehr als vier Tagen in der Woche organisatorisch nicht moeglich. Die Aenderungsmoeglichkeiten am Fraktionierungsschema bei Tumoren hochgradiger Malignitaet sind daher begrenzt. Bessere Resultate koennten aufgrund neuerer Erfahrungen erzielt werden. Die Bedeutung einer postbioptischen, praeoperativen Strahlentherapie, eines vergroesserten Zielvolumens und einer erhoehten Gesamtdosis wird in einer zukuenftigen Studie der SAKK (Schweizer Gruppe fuer klinische Krebsforschung) untersucht. (orig.)Primary Subject
Source
Workshop on progress in high LET-radiation therapy - semiannual meeting of the EORTC-High LET Therapy Group; Munich (Germany, F.R.); 22 Sep 1984
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Journal Article
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Schmitt, G.; Essen, C.F. von; Scherer, E.; Fuerst, G.
Third international meeting on progress in radio-oncology1985
Third international meeting on progress in radio-oncology1985
AbstractAbstract
No abstract available
Primary Subject
Source
Vienna Univ. (Austria). Klinik fuer Strahlentherapie und Strahlenbiologie; 88 p; 1985; p. 48; Third international meeting on progress in radio-oncology; Vienna (Austria); 27-30 Mar 1985; Published in summary form only.
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Miscellaneous
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Conference
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AbstractAbstract
[en] The results of neutron and neutron boost irradiation of 199 patients with soft tissue sarcomas treated between 1978 and 1983 are presented. The median follow-up period is 42 months. The recurrence free survival rates by last review are 93% for patients with T1 tumours, 87% for T2 tumours and 73% for T3 tumours. The actuarial survival rates at six years are 77% for T1, 63% for T2 and 34% for T3 tumours. The actuarial survival rate for the group of patients irradiated after surgery without clinical evidence of residual tumour is 63.8% compared with 30.9% for the group of patients with measurable tumour volume at the beginning of radiotherapy. The survival rates according to grading are 52% for patients with G1 tumours, 54% for G2 tumours and 36% for G3 tumours. The morbidity rate of 22% after full neutron irradiation was reduced to 15% by the introduction of a neutron boost. At the present time, the results of this modified treatment are not inferior to a full neutron course. The effectiveness of neutron or neutron boost irradiation in the postoperative treatment of soft tissue sarcomas will be evaluated in a forthcoming EORTC trial. (orig./MG)
[de]
Die Ergebnisse einer zwischen 1978 und 1983 an 199 Patienten mit Weichteilsarkomen durchgefuehrten Neutronen- und Neutronen-Boost-Bestrahlung werden mitgeteilt. Die durchschnittliche Nachbeobachtungszeit betrug 42 Monate. Bei der letzten Untersuchung betrugen die rezidivfreien Ueberlebensraten 93% fuer Patienten mit T1-Tumoren, 87% fuer T2-Tumoren und 73% fuer T3-Tumoren. Die statistischen Sechsjahresueberlebensraten lagen bei 77% fuer T1-Tumoren, 63% fuer T2-Tumoren und 34% fuer T3-Tumoren. Bei den postoperativ bestrahlten Patienten ohne klinisch nachweisbaren Resttumor betraegt die statistische Ueberlebensrate 63,8% gegenueber 30,9% bei den Patienten mit nachweisbarem Tumorgewebe zu Beginn der Radiotherapie. Gemaess histologischer Einteilung ergeben sich folgende Ueberlebensraten: 52% fuer Patienten mit G1-Tumoren, 54% fuer G2-Tumoren und 36% fuer G3-Tumoren. Die Morbiditaetsrate von 22% nach voller Neutronenbestrahlung wurde nach Einfuehrung eines Neutronen-Boost-Verfahrens auf 15% reduziert. Die Ergebnisse dieses abgeaenderten Verfahrens sind bis jetzt nicht schlechter als die der vollen Neutronenbestrahlung. Die Effizienz der Neutronen- oder Neutronen-Boost-Bestrahlung in der postoperativen Behandlung von Weichteilsarkomen soll demnaechst in einer EORTC-Studie geklaert werden. (orig./MG)Primary Subject
Source
Workshop on progress in high LET-radiation therapy - semiannual meeting of the EORTC-High LET Therapy Group; Munich (Germany, F.R.); 22 Sep 1984
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