Follow-Up After Percutaneous Radiofrequency Ablation of Renal Cell Carcinoma: Contrast-Enhanced Sonography Versus Contrast-Enhanced CT or MRI
Maria Franca Meloni1,
Michele Bertolotto2,
Chiara Alberzoni3,
Sergio Lazzaroni1,
Carlo Filice4,
Tito Livraghi1 and
Giovanna Ferraioli4
1 Radiology Department, Vimercate General Hospital, Via Cesare Battisti 23,
20059 Vimercate, Milan, Italy.
2 Department of Radiology, Cattinara Hospital, University of Trieste, Trieste,
Italy.
3 Department of Diagnostic Radiology, University Milano-Bicocca, Hospital San
Gerardo, Monza, Milan, Italy.
4 Infectious and Tropical Diseases Division, Istituto Di Ricovero e Cura a
Carattere Scientifico (IRCCS), San Matteo–University of Pavia, Pavia,
Italy..
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Fig. 1A —72-year-old woman with 4-cm tumor in left kidney. Transverse
CT scan (A) and contrast-enhanced (B) and fundamental-mode
(C) sonograms show homogeneous enhancement of renal mass
(arrow, A and B) in corticomedullary arterial
phase.
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Fig. 1B —72-year-old woman with 4-cm tumor in left kidney. Transverse
CT scan (A) and contrast-enhanced (B) and fundamental-mode
(C) sonograms show homogeneous enhancement of renal mass
(arrow, A and B) in corticomedullary arterial
phase.
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Fig. 1C —72-year-old woman with 4-cm tumor in left kidney. Transverse
CT scan (A) and contrast-enhanced (B) and fundamental-mode
(C) sonograms show homogeneous enhancement of renal mass
(arrow, A and B) in corticomedullary arterial
phase.
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Fig. 1D —72-year-old woman with 4-cm tumor in left kidney. CT scan
(D) and contrast-enhanced (E) and fundamental-mode (F)
sonograms 4 months after treatment show absence of enhancement (arrow,D and E), indicating complete ablation of renal mass.
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Fig. 1E —72-year-old woman with 4-cm tumor in left kidney. CT scan
(D) and contrast-enhanced (E) and fundamental-mode (F)
sonograms 4 months after treatment show absence of enhancement (arrow,D and E), indicating complete ablation of renal mass.
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Fig. 1F —72-year-old woman with 4-cm tumor in left kidney. CT scan
(D) and contrast-enhanced (E) and fundamental-mode (F)
sonograms 4 months after treatment show absence of enhancement (arrow,D and E), indicating complete ablation of renal mass.
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Fig. 2A —83-year-old woman with 5-cm tumor in right kidney. Transverse
CT scan (A) and contrast-enhanced (B) and fundamental-mode
(C) sonograms show renal mass with heterogeneous enhancement
(arrow, A and B) in corticomedullary arterial phase due
to central necrosis.
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Fig. 2B —83-year-old woman with 5-cm tumor in right kidney. Transverse
CT scan (A) and contrast-enhanced (B) and fundamental-mode
(C) sonograms show renal mass with heterogeneous enhancement
(arrow, A and B) in corticomedullary arterial phase due
to central necrosis.
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Fig. 2C —83-year-old woman with 5-cm tumor in right kidney. Transverse
CT scan (A) and contrast-enhanced (B) and fundamental-mode
(C) sonograms show renal mass with heterogeneous enhancement
(arrow, A and B) in corticomedullary arterial phase due
to central necrosis.
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Fig. 2D —83-year-old woman with 5-cm tumor in right kidney. Transverse
CT scan (D) and contrast-enhanced (E) and fundamental-mode
(F) sonograms obtained 1 day after radiofrequency ablation show viable
tumor in posterior peripheral aspect of tumor (arrow, D and
E).
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Fig. 2E —83-year-old woman with 5-cm tumor in right kidney. Transverse
CT scan (D) and contrast-enhanced (E) and fundamental-mode
(F) sonograms obtained 1 day after radiofrequency ablation show viable
tumor in posterior peripheral aspect of tumor (arrow, D and
E).
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Fig. 2F —83-year-old woman with 5-cm tumor in right kidney. Transverse
CT scan (D) and contrast-enhanced (E) and fundamental-mode
(F) sonograms obtained 1 day after radiofrequency ablation show viable
tumor in posterior peripheral aspect of tumor (arrow, D and
E).
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Fig. 2G —83-year-old woman with 5-cm tumor in right kidney. Transverse
CT scan (G) and contrast-enhanced (H) and fundamental-mode
(I) sonograms show absence of enhancement (arrow, G and
H) as consequence of complete necrosis after second session of
radiofrequency ablation.
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Fig. 2H —83-year-old woman with 5-cm tumor in right kidney. Transverse
CT scan (G) and contrast-enhanced (H) and fundamental-mode
(I) sonograms show absence of enhancement (arrow, G and
H) as consequence of complete necrosis after second session of
radiofrequency ablation.
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Fig. 2I —83-year-old woman with 5-cm tumor in right kidney. Transverse
CT scan (G) and contrast-enhanced (H) and fundamental-mode
(I) sonograms show absence of enhancement (arrow, G and
H) as consequence of complete necrosis after second session of
radiofrequency ablation.
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