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  • 1
    ISSN: 1432-1084
    Keywords: MRI ; Uterine neoplasms ; MRI ; Uterine neoplasms, staging
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract The purpose of the present prospective study was, to determine the efficacy of MRI in predicting extracervical tumour invasion on the basis of the presence of a very thin (〈 3 mm) univolved cervical stromal ring. Forty-seven consecutive patients with uterine cervical carcinoma (FIGO stages Ib–IIa) were examined with axial and sagittal T2-weighted MRI sequences. Pathological proof after hysterectomy was obtained in all women. On he basis of the MRI visualisation of a thinned stroma (〈3 mm), the sensitiivity in predicting extracervical involvement was 94.1% and the specificity 73.3% (accuracy 80.85%). On the basis A the detection of complete stromal disruption the MRI sensitivity ill predicting extracervical involvement was 76.5% and specificity 93.3% (accuracy 87.23%). The results of our study indicate that in the interpretation of MRI findings, the visualisation of an uninvolved cervical stromal ring at least 3 min thick can predict the presence of extracervical tumour with very high sensitivity.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 0375-9474
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Physics
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Suite 500, 5th Floor, 238 Main Street, Cambridge, Massachusetts, 02142, USA : Blackwell Science Inc.
    International journal of gynecological cancer 6 (1996), S. 0 
    ISSN: 1525-1438
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: The sensitivity of magnetic resonance (MR) imaging in predicting extracervical tumor invasion on the basis of the detection of a thinning of the uninvolved cervical stromal ring (3 mm or less) was compared to the sensitivity achieved by visualization of a complete stromal interruption. Fifty-seven consecutive patients with squamous carcinoma of the uterine cervix (FIGO stage IB-IIA), scheduled for radical surgery, were examined with axial and sagittal weighted MR sequences. The sensitivity in predicting extracervical involvement on the basis of the MR imaging visualization of a thinned stroma was 87.5%, whereas the sensitivity obtained by detection of a complete stromal interruption was 70%. Among women with a spared cervical stroma of more than 3 mm at MR imaging, only two had microscopic extracervical involvement at pathologic examination, accounting for a negative predictive value of 92.8%. The results of our study show a high concordance between MR imaging and pathologic findings, and indicate that the detection of an intact cervical stromal ring exceeding 3 mm at MR imaging is related to a very low risk of extracervical seeding of tumor. On the other hand, the detection of a thinned stromal ring is related to a high incidence of microscopic parametrial invasion. The information obtained by this imaging technique may therefore be extremely useful in accurate treatment planning for these patients.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Nuclear Instruments and Methods in Physics Research Section A: 310 (1991), S. 513-517 
    ISSN: 0168-9002
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Physics
    Type of Medium: Electronic Resource
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  • 5
    ISSN: 0168-9002
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Physics
    Type of Medium: Electronic Resource
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  • 6
    ISSN: 1432-5411
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract. The reaction H(e, e p) has been studied at an invariant mass of 1050 MeV, i.e. well below the (1232) resonance. Cross sections have been obtained at values of , the four-momentum transfer squared, of 0.10, 0.20, and 0.28 (GeV/c) , covering a missing-momentum range from 150 to 700 MeV/c. The data are compared to the results of covariant calculations of Tjon, and the results of calculations based on a Schrödinger formalism due to Laget and the Mainz group, respectively. The data are well described by the calculations of the Mainz group, whereas they are underestimated by Tjon's calculations at high missing momenta. The calculations of Laget, on the other hand, overestimate the data at low missing momenta, but give a good account of the data at high missing momenta. More detailed considerations reveal that the (1232) contributions are dominant at high missing momenta. However, the lacking (1232) contribution in Tjon's calculations is not enough to explain the large discrepancy between his calculation and the present H(e, ) data at high missing momentum. Probably the deuteron wave function employed in the covariant calculations has a -state contribution that is too small.
    Type of Medium: Electronic Resource
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  • 7
    ISSN: 1569-8041
    Keywords: cervical cancer ; neoadjuvant chemotherapy ; paclitaxel
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Background: Neoadjuvant chemotherapy is increasingly being used for the treatment of bulky and locally-advanced cervical cancer. Cisplatin and ifosfamide are known to be effective in cervical cancer, while paclitaxel is one of the promising new drugs for the treatment of this neoplasm. Objective: To assess the toxic effects and antitumor activity of a multidrug neoadjuvant regimen consisting of cisplatin, ifosfamide, and paclitaxel in bulky and locally advanced cervical cancer. Patients and methods: Thirty-eight patients with pathology-confirmed squamous-cell cervical cancer (27 IB2-IIA, two IIB, eight IIIB, one IVA) were prospectively enrolled in the study. Their treatment consisted of paclitaxel 175 mg/m2 given over three hours on day 1, cisplatin 50 mg/m2 (75 mg/m2 in 10 patients), ifosfamide 5 g/m2 in a 24-hour continuous infusion and mesna 5 g/m2 in a 24-hour continuous infusion on day 2, and mesna 3 g/m2 in a 24-hour continuous infusion on day 3. The course was repeated every three weeks for three courses and all of the patients, except those with disease progression or who were inoperable, were scheduled for radical hysterectomy and pelvic lymphadenectomy. Results: All patients are evaluable for response. Eleven achieved clinical complete responses, 21 had partial responses, five had stable disease and one had progression of disease. Of 34 patients who underwent surgery, six (16%) had pathology-documented complete responses, seven (18%) had partial responses with only microscopic residual disease in the cervix, 19 had sub-optimal partial responses, and two had stable disease, for an overall response rate of 84% (95% confidence intervals (CI): 68.7%–94%). Grade 3–4 neutropenia was recorded for 27 (71%) patients, grade 3–4 thrombocytopenia for four (10.5%), and grade 2 peripheral neuropathy for two (2.5%). At a median follow-up of 16 months (range 7–22), 29 (76%) women are alive without recurrence, seven are alive with persistent/recurrent disease and two have died of their disease. Conclusions: According to pathology examination, this regimen yields a 34% complete and optimal partial response rate with acceptable toxicity, and it should be prospectively compared to other regimens.
    Type of Medium: Electronic Resource
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  • 8
    ISSN: 1569-8041
    Keywords: carboplatin ; chemoradiotherapy ; 5-fluorouracil ; recurrent cervical carcinoma
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Background: Results of salvage therapy in patients with carcinoma of the uterine cervix recurrent after surgery have been dismal even when the disease was apparently confined to the pelvis. Concurrent chemoradiation is one of the several avenues being investigated to improve these results. Patients and methods: Thirty-five women with recurrent cervical carcinoma were enrolled in the trial. Twenty-eight patients (80%) had disease limited to the central pelvis (ten), lateral pelvis (fourteen) and vagina (four) and seven had paraortic metastases. Patients were treated with a combination of external radiotherapy (50–70 Gy) along with three cycles of 5-fluorouracil (1000 mg/m2/24-hour continuous infusion days 1–4) and carboplatin (75 mg/m2 in bolus days 1–4). Results: Treatment was well tolerated, with 30 patients (86%) completing the protocol as planned. Acute toxicity was severe but manageable; 11 patients (31%) experienced grades 3–4 acute toxicity. Late morbidity occurred in five patients (14%). Overall response rate was 74% (11 partial responses and 15 complete). After a median follow-up of 27 months (range 18–90), 13 patients (37%) are alive without disease, 4 (11%) are alive with persistent disease and 18 (52%) are dead of their disease. Actuarial two-year survival rate for the series as a whole is 44% and three-year survival is 25%. Stage of the primary disease, site of recurrence, interval from the primary therapy to recurrence, lymph node involvement, ureterohydronephrosis at the time of recurrence and diameter of the relapse are the most significant factors for survival, while complete response is related to diameter and site of relapse and lymph node status at the time of relapse. Conclusion: The acceptable toxicity, high response rate and satisfying survival would suggest that concomitant carboplatin/5-fluorouracil and radiotherapy is a safe and tolerable treatment for recurrent cervical carcinoma. Further studies are needed to demonstrate an eventual survival benefit of this type of chemoradiation over standard radiotherapy alone and to identify the subsets of patients who in particular might benefit from this.
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    Brookfield, Conn. : Wiley-Blackwell
    Polymer Composites 3 (1982), S. 125-130 
    ISSN: 0272-8397
    Keywords: Chemistry ; Chemical Engineering
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Polymer impregnation has been proven to increase environmental and mechanical resistance of tuff (a soft volcanic rock), suggesting its potential application for restoration of monuments or reinforcement of structures. The influence of monomer viscosity and applied pressure on the penetration rate of the liquid into pores, the monomer evaporation from the pores, and the effect of the curing temperature on the polymerization rate were studied. The data are analyzed in terms of the existing phenomenological or analytical models. The results can be used to develop a practical and economical large-scale process.
    Additional Material: 12 Ill.
    Type of Medium: Electronic Resource
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