Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
  • 1
    ISSN: 1432-1084
    Keywords: Key words: Kidney ; Neoplasms ; MRI ; CT ; Kidney ; Renal lesions ; ROC curve
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract. The aim of this work was to compare MR imaging and CT in the detection of renal masses and in the differential diagnosis between benign and malignant lesions. In 33 patients with 54 renal lesions CT and MR images were evaluated by four readers with regard to tumor detection and characterization using a receiver-operating-characteristics (ROC) analysis. The MRI protocol consisted of a T1-weighted spin-echo (SE) sequence (TR/TE: 300/10 ms) before and after contrast administration and a heavily T2-weighted turbo-SE (TSE) sequence (TR/TE: 5500/150 ms). Az values for the area under the ROC curves for lesion detection were 0.92 ± 0.04 for CT and 0.91 ± 0.05 for MRI, respectively, which was not statistically different. The MRI technique was slightly, but not significantly, better than CT in the overall characterization (accuracy in differentiation between benign and malignant) of renal lesions with an Az value of 0.90 ± 0.05 compared with 0.88 ± 0.06 for CT. The MRI technique proved to be statistically superior to CT (p 〈 0.01) in the correct characterization of benign renal lesions. MRI equals CT in the overall detection and differential diagnosis of renal masses. MRI is very helpful for further differential diagnosis of lesions which are equivocal on CT especially in the differentiation between complicated cysts and cystic or hypovascular renal cell carcinoma.
    Type of Medium: Electronic Resource
    Signatur Availability
    BibTip Others were also interested in ...
  • 2
    ISSN: 0044-2313
    Keywords: Alkali fluoro palladate(II) ; preparation ; single crystal structure ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: New Fluoropalladates(II) M2[PdF4] (M = Na, K) and K2RbPdF5For the first time bright yellow single crystals M2[PdF4] (M = Na, K) have been obtained and their structure determined. K2[PdF4] crystallizes monoclinic, space group C2/m-C2h3 (No. 12) with a = 975.2(3) pm, b = 597.6(1) pm, c = 420.2(1) pm, β = 92.17(2)° and Z = 2. Structure related Na2[PdF4] crystallizes monoclinic too, but in space group P21/c-C2h5 (No. 14) with a = 340.88(7) pm, b = 561.1(1) pm, c = 999.2(2) pm, β = 93.97(2)° and Z = 2. K2RbPdF5, yellow, crystallizes tetragonal with a = 724.9(1) pm, c = 627.9(1) pm, Z = 2 and is isotypic with Rb2CsPdF5 (space group P4/mbm-D4h5, No. 127), an ordered structure variant of the Rb3PdF5-type [1].
    Notes: Erstmals konnten leuchtend gelbe Einkristalle M2[PdF4] (M = Na, K) dargestellt und ihre Struktur bestimmt werden. K2[PdF4] kristallisiert monoklin, R.G. C2/m-C32h (Nr. 12) mit a = 975,2(3) pm, b = 597,6(1) pm, c = 420,2(1) pm, β = 92,17(2)° und Z = 2. Strukturverwandtes Na2[PdF4] kristallisiert ebenfalls monoklin, jedoch in der R.G. P21/c-C2h5 (Nr. 14) mit a = 340,88(7) pm, b = 561,1(1) pm, c = 999,2(2) pm, β = 93,97(2)°und Z = 2. K2RbPdF5, gelb, kristallisiert tetragonal mit a = 724,9(1) pm, c = 627,9(1) pm, Z = 2 und ist isotyp zu Rb2CsPdF5 (R.G. P4/mbm-D4h5, Nr. 127), einer geordneten Strukturvarianten des Rb3PdF5-Typs [1].
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    Signatur Availability
    BibTip Others were also interested in ...
  • 3
    ISSN: 0044-2313
    Keywords: Alkali fluoro palladates(II) ; preparation ; single crystal structure ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: On Complex Fluorides of Divalent PalladiumFor the first time single crystals of the new compounds RbPdPdF5, KPdPdF5, and K2CsPdF5 have been obtained. Orange brown RbPdPdF5 crystallizes orthorhombic, space group Imma-D2h28 (No. 74) with a = 633.6(1) pm, b = 765.5.(1) pm, c = 1067.5(1) pm and Z = 4 and is isotypic with CsPdPdF5 [1]. Structure related KPdPdF5 (also orange brown) crystallizes orthorhombic too, but in space group Pnma-D2h16 (No. 62) with a 614.12(9) pm, b = 748.7(1) pm, c = 1065.0(2) pm and Z = 4. K2CsPdF5, light yellow, crystallizes tetragonal with a = 736.3(1) pm, c = 628.0(1) pm, Z = 2, and is isotypic with Rb2CsPdF5 (space group P4/mbm—D4h5 Nr. 127), an ordered structure variant of the Rb3PdF5-Type [1].
    Notes: Neu dargestellt wurden RbPdPdF5, KPdPdF5 und K2CsPdF5, alle in Form von Einkristallen. Orangebraunes RbPdPdF5 kristallisiert orthorhombisch, R. G. Imma-D2h28 (Nr. 74) mit a = 633,6(1) pm, b = 765,5(1) pm, c = 1067,5(1) pm und Z = 4 und ist isotyp zu CsPdPdF5 [1]. Strukturverwandtes KPdPdF5 (ebenfalls orange-braun) kristallisiert gleichfalls orthorhombisch, jedoch in der R. G. Pma—D2h16 (Nr. 62) mit a = 614,12(9) pm, b = 748,7(1) pm, c = 1065,0(2) pm und Z = 4. K2CsPdF5, hellgelb, kristallisiert tetragonal mit a = 736,3(1) pm, c = 628,0(1) pm Z = 2, ist isotyp zu Rb2CsPdF5 (R. G. P4/mbm—D4h5) (Nr. 127) und somit ein weiterer Vertreter der geordneten Strukturvariante des Rb3PdF5-Typs [1].
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    Signatur Availability
    BibTip Others were also interested in ...
  • 4
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 619 (1993), S. 387-391 
    ISSN: 0044-2313
    Keywords: Alkali fluoro palladates(II) ; preparation ; single crystal structure ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Single Crystal Investigations on Fluoroperovskites MPdF3 (M = Rb, K) and PdF2Single crystal investigations on PdF2 (violet) confirm the tetragonale rutile structure [1, 2] with a = 495.44(3) pm, c = 338.48(3) pm, Z = 2, space group P42/mnm-D4h14 (No. 136) (xF = 0.3058(8)). RbPdF3 and KPdF3 have been obtained. RbPdF3 and KPdF3 both ruby-red single crystals crystallize cubic (perovskite-structure), space group Pm3m-Oh1 (No. 221) with a = 429.41(8) pm (RbPdF3) respectively a = 424.30(4) pm (KPdF3).
    Notes: Einkristalluntersuchungen an PdF2 (amethystfarben) bestätigen die Rutilstruktur [1, 2] mit a = 495,44(3) pm, c = 338,48(3) pm, Z = 2, Raumgruppe P42/mnm-D4h14 (Nr. 136) (xF = 0,3058(8)). RbPdF3 und KPdF3 (beides rubinrote Einkristalle) kristallisieren in der kubischen Perowskitstruktur, Raumgruppe Pm3m-Oh1 (Nr. 221) mit a = 429,41(8) pm (RbPdF3) bzw. a = 424,30(4) pm (KPdF3).
    Additional Material: 8 Tab.
    Type of Medium: Electronic Resource
    Signatur Availability
    BibTip Others were also interested in ...
  • 5
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 619 (1993), S. 1431-1440 
    ISSN: 0044-2313
    Keywords: Fluoroplatinates(IV) ; preparation ; single crystal structure ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Fluoroplatinates(IV) of the Lanthanides LnF[PtF6] (Ln = Pr, Sm, Gd, Tb, Dy, Ho, Er)For the first time fluorides LnF[PtF6] (Ln = Pr, Sm, Gd, Tb, Dy, Ho, Er), all yellow have been obtained. From single crystal data they crystallize monoclinic, space group P21/n-C2h5 (No. 14), Z = 4, Pr: a = 1 125.77(19) pm, b = 559.04(7) pm, c = 910.27(17) pm, β = 107.29(1)°; Sm: a = 1 114.63(31) pm, b = 552.70(12) pm, c = 898.02(20) pm, β = 107.24(2)°; Gd: a = 1 112.12(15) pm, b = 551.22(7) pm, c = 891.99(11) pm, β = 107.09(1)°; Tb (Powder data): a = 1 108.88(20) pm, b = 552.71(9) pm, c = 889.56(16) pm, β = 107.30(1)°; Dy: a = 1 100.28(23) pm, b = 547.77(8) pm, c = 882.41(13) pm, β = 107.32(1); Ho: a = 1 099.11(16) pm, b = 546.16(7) pm, c = 879.45(15) pm, β = 107.34(1)°; Er: a = 1 095.10(16) pm, b = 544.82(10) pm, c = 874.85(14) pm, β = 107.37(1)°.
    Notes: Erstmals dargestellt wurden Fluoride LnF[PtF6] (Ln = Pr, Sm, Gd, Tb, Dy, Ho, Er), alle gelb. Nach Einkristalluntersuchungen kristallisieren diese monoklin in der Raumgruppe P21/n-C2h5 (Nr. 14), Z = 4, Pr: a = 1 125,77(19) pm, b = 559,04(7) pm, c = 910,27(17) pm, β = 107,29(1)°; Sm: a = 1 114,63(31) pm, b = 552,70(12) pm, c = 898,02(20) pm, β = 107,24(2)°; Gd: a = 1 112,12(15) pm, b = 551,22(7) pm, c = 891,99(11) pm, β = 107,09(1)°; Tb (Pulverdaten): a = 1 108,88(20) pm, b = 552,71(9) pm, c = 889,56(16) pm, β = 107,30(1)°; Dy: 1 100,28(23) pm, b = 547,77(8) pm, c = 882,41(13) pm, β = 107,32(1)°; Ho: a = 1 099,11(16) pm, b = 546,16(7) pm, c = 879,45(15) pm, β = 107,34(1)°; Er: a = 1 095,10(16) pm, b = 544,82(10) pm, c = 874,85(14) pm, β = 107,37(1)°. Im Gegensatz zu älteren Befunden liegt die Raumgruppe P21/n-C2h5 (Nr. 14) mit einem verdoppelten Zellvolumen vor.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    Signatur Availability
    BibTip Others were also interested in ...
  • 6
    ISSN: 0044-2313
    Keywords: Single crystal structure ; Fluorzirkonates ; Fluorstannates ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: On the Crystal Structure of SmZrF7 with an Appendix on EuSnF7 and YSnF7SmZrF7 again was obtained as colourless single crystals and investigated by X-ray methods: It crystallizes in space group P 21/c-C2h5 (Nr. 14; P 21/n) with a = 1 140.9(2) pm, b = 574.6(1) pm, c = 914,4(2) pm, β = 107.32(2)°, Z = 4 but not in space group P 21-C22 (Nr. 4) [1]. In addition EuSnF7 and YSnF7 are isotypic with the following lattice constants: EuSnF7: a = 1 121.8(2) pm, b = 563.7(1) pm, c = 901.7(1) pm, β = 107.35(2)° with Z = 4; YSnF7: a = 1 106.7(2) pm, b = 556.4(1) pm, c = 884.7(1) pm, β = 107.51(1)° and Z = 4 (Powder data).
    Notes: SmZrF7 wurde erneut in Form farbloser Einkristalle dargestellt und röntgenographisch untersucht: Danach kristallisiert es in der Raumgruppe P 21/c-C2h5 (Nr. 14; Aufstellung P 21/n) mit a = 1 140,9(2) pm, b = 574,6(1) pm, c = 914,4(2) pm, β = 107,32(2)°, Z = 4, also nicht in der Raumgruppe P 21-C22 (Nr. 4) [1]. Aufgrund neuer Strukturrechnungen kristallisieren EuSnF7 und YSnF7 ebenfalls in der zentrosymmetrischen Raumgruppe P 21/c-C2h5 (Nr. 14) mit folgenden Gitterkonstanten für EuSnF7: a = 1 121,8(2) pm, b = 563,7(1) pm, c = 901,7(1) pm, β = 107,35(2)° mit Z = 4 sowie für YSnF7 a = 1 106,7(2) pm, b = 556,4(1) pm, c = 884,7(1) pm, β = 107,51(1)° und Z = 4 (Pulverdaten).
    Additional Material: 11 Tab.
    Type of Medium: Electronic Resource
    Signatur Availability
    BibTip Others were also interested in ...
  • 7
    ISSN: 0044-2313
    Keywords: Complex fluorides with Ti2+, V2+, Cu2+, Zr4+, structure determination ; magnetic properties ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Synthesis, Structure, and Magnetic Properties of Compounds NaMIIZr2F11 (MII = Ti, V, Cu) and a Notice on NaPdZr2F11By synthesizing NaTiZr2F11 in form of red single crystals, it was possible to obtain a complex fluoride with Ti2+ for the first time. It crystallizes like the analogous greenish blue vanadium compound isotypic to AgPdZr2F11 [1] monoclinic, spacegroup C2/m-C2h3 (No. 12) with a = 918.0/911.5 pm, b = 682.6/675.7 pm, c = 780.8/776.6 pm, β = 116.2/116.2º and Z = 2.Colourless NaCuZr2F11 however crystallizes as a result of the Jahn-Teller distortion of Cu2+ triclinic (space group P1-Ci1 (No. 2), a = 552.7 pm, b = 568.2 pm, c = 768.0 pm, α = 111.0º, β = 97.4º, γ = 106.4º) and is - as expected - isotypic to NaAgZr2F11 [1].
    Notes: Mit der Synthese von rotem NaTiZr2F11 in Form von Einkristallen gelang es erstmals, Ti2+ in ein komplexes Fluorid einzubauen. Es kristallisiert wie die entsprechende blaugrüne Vanadiumverbindung NaVZr2F11 isotyp zu AgPdZr2F11 [1] monoklin, R.G. C2/m-C2h3 (Nr. 12) mit a = 918,0 bzw. 911,5 pm, b = 682,6 bzw. 675,7 pm, c = 780,8 bzw. 776,6 pm, β = 116,2º bzw. 116,2º und Z = 2.Farbloses NaCuZr2F11 hingegen gehört mit der Jahn-Teller-Verzerrung um Cu2+ triklin (Raumgruppe P1-Ci1 (Nr. 2), a = 552,7 pm, b = 568,2 pm, c = 768,0 pm, α = 111,0º, β = 97,4º und γ = 106,4º) erwartungsgemäß zum NaAgZr2F11-Typ [1].
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    Signatur Availability
    BibTip Others were also interested in ...
  • 8
    ISSN: 0044-2313
    Keywords: Silver(II)-fluorozirconates and -hafnates ; Single Crystal Structure ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Ag2+ in Trigonal-Bipyramidal Surrounding New Fluorides with Divalent Silver AgM3IIM3IVF20 (MII = Cd, Ca, Hg; MIV = Zr, Hf)The intensively green compounds AgM3IIM3IIM3IVF20 (MII = Cd, Ca, Hg; MIV = Zr, Hf) have been obtained for the first time as single crystals and investigated by X-ray methods. They crystallize in space group P63/m-C6h2 (Nr. 176) with a = 1052.0(2) pm, c = 828.6(2) pm (AgCd3Zr3F20),a = 1048.0(2) pm, c = 832.6(3) pm (AgCd3Hf3F20),a = 1059.4(2) pm, c = 841.0(3) pm (AgCa3Zr3F20),a = 1053.7(2) pm, c = 830.6(3) pm (AgCa3Hf3F20),a = 1058.9(3) pm, c = 832.6(4) pm (AgHg3Zr3F20),a = 1056.9(2) pm, c = 833.0(3) pm (AgHg3Hf3F20), Z = 2.
    Notes: Erstmals dargestellt und anhand von Einkristallen röntgenographisch untersucht wurden die intensiv grünen Verbindungen AgM3IIM3IVF20 (MII = Cd, Ca, Hg; MIV = Zr, Hf). Sie kristallisieren alle in der Raumgruppe P63/m-C6h2 (Nr. 176) mit a = 1052,0(2) pm, c = 828,6(2) pm (AgCd3Zr3F20),a = 1048,0(2) pm, c = 832,6(3) pm (AgCd3Hf3F20),a = 1059,4(2) pm, c = 841,0(3) pm (AgCa3Zr3F20),a = 1053,7(2) pm, c = 830,6(3) pm (AgCa3Hf3F20),a = 1058,9(3) pm, c = 832,6(4) pm (AgHg3Zr3F20),a = 1056,9(2) pm, c = 833,0(3) pm (AgHg3Hf3F20), Z = 2.
    Additional Material: 7 Ill.
    Type of Medium: Electronic Resource
    Signatur Availability
    BibTip Others were also interested in ...
  • 9
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 622 (1996), S. 1601-1608 
    ISSN: 0044-2313
    Keywords: Single Crystal Structure ; Fluorozirconates ; Fluorostannates ; Fluoroplatinates ; Fluoroplumbates ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: New Fluorides MIIIMIVF7 with MIII = SE, Tl and MIV = Sn, Pb, PtColourless Fluorides MSnF7 (M = La, Sm, Gd, Yb, Lu, Tl), TlPbF7 and yellow compounds MPtF7 (M = Eu, Y, Lu) were obtained for the first time either as single crystals or powder samples. They crystallize isostructural to SmZrF7 (space group P21/c-C2h5, Nr. 14; P21/n, Z = 4). Crystal data see “Inhaltsübersicht”.
    Notes: Die farblosen Fluoride MSnF7 (M = La, Sm, Gd, Yb, Lu, Tl) und TlPbF7 sowie die gelben Verbindungen MPtF7 (M = Eu, Y, Lu) wurden erstmals in Form von Einkristallen oder mikrokristallin erhalten. Alle sind isotyp zu SmZrF7 (monoklin, Raumgruppe P21/c-C2h5, Nr. 14; Aufstellung P21/n), mit Z = 4, mit a = 1148,4(4), b = 573,1(3), c = 925,7(3), β = 107,83(4)°, LaSnF7;a = 1124,9(4), b = 563,8(2), c = 905,3(3) pm, β = 107,35(3)°, SmSnF7;a = 1119,3(2), b = 561,76(6), c = 898,36(9) pm, β = 107,40(1)°, GdSnF7;a = 1098,5(2), b = 552,00(8), c = 876,5(2) pm, β = 107,58°, YbSnF7;a = 1103,1(3), b = 547,4(2), c = 867,4(2) pm, β = 107,46(3)°, LuSnF7;a = 1102,5(3), b = 546,5(2), c = 866,3(2) pm, β = 107,43(2)°, TlSnF7;a = 1110,9(3), b = 552,1(2), c = 894,1(2) pm, β = 107,25(2)°, EuPtF7;a = 1097,6(4), b = 546,0(2), c = 876,4(3) pm, β = 107,33(4)°, YPtF7;a = 1090,0(5), b = 542,3(2), c = 866,8(4) pm, β = 107,46(4)°, LuPtF7;a = 1138,6(4), b = 544,9(2), c = 876,5(3) pm, β = 107,27(3)°, TlPbF7.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    Signatur Availability
    BibTip Others were also interested in ...
  • 10
    ISSN: 0044-2313
    Keywords: Tetrafluoroaurates(III) ; single crystal investigation and structure determination ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Synthesis and Structure of MII[AuF4]2 (MII = Cd, Hg)Cd[AuF4]2 and the isotypic compound Hg[AuF4]2, both are yellow, crystallize tetragonal in the space-group P4/mcc-D24h (No. 124) with a = 575.0/575.6 pm, c = 1034.8/1042.3 pm and Z = 2. The single-crystals were obtained by solid-state reactions in goldtubes.
    Notes: Cd[AuF4]2 und das dazu isotype Hg[AuF4]2, beide gelb, kristallisieren tetragonal in der Raumgruppe P4/mcc-D24h (Nr. 124) mit a = 575.0 bzw. 575.6 pm, c = 1034.8 bzw. 1042.3 pm und Z = 2. Die Darstellung der Einkristalle erfolgte durch Festkörperreaktion der binären Fluoride im Goldrohr.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    Signatur Availability
    BibTip Others were also interested in ...
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...