Oblique approach for CT-guided liver radiofrequency ablation using multiplanar reformation images in hepatocellular carcinoma View Full Text


Ontology type: schema:ScholarlyArticle     


Article Info

DATE

2012-04-18

AUTHORS

Seiji Kamei, Joe Matsuda, Makiyo Hagihara, Akira Kitagawa, Yuichiro Izumi, Eisuke Katsuda, Yukihiko Oshima, Shuji Ikeda, Junko Kimura, Toyohiro Ota, Toshiki Kawamura, Tsuneo Ishiguchi

ABSTRACT

PurposeTo evaluate the feasibility and safety of CT-guided radiofrequency (RF) ablation by caudal-cranial oblique insertion using multiplanar reformation (MPR) images for hepatocellular carcinomas (HCCs).Materials and methodsTwenty-two HCCs in 19 patients that were difficult to demonstrate on ultrasound (mean tumor diameter was 17.5 mm) were treated with CT-guided RF ablation by caudal-cranial oblique insertion to avoid pneumothorax, using MPR images after transcatheter arterial chemoembolization. The insertion point and direction of insertion, avoiding aerated lung parenchyma, bones, large vessels, and intestine, were sought on the MPR images. Technical success was defined as complete eradication of tumor enhancement in the contrast-enhanced CT. Local tumor progression was defined by the appearance of enhanced tumor adjacent to the zone of ablation. The technical success rate, local tumor progression, and complications were investigated.ResultsThe coronal plane was used for insertion in 18 tumors, the sagittal plane in 3 tumors, and the oblique plane in 1 tumor. RF electrode placement was successful and complete necrosis was obtained in all cases. During the mean follow-up period of 38.0 months, local tumor progression was not detected in any of the patients. There were no major complications, including pneumothorax.ConclusionCT-guided RF ablation by caudal-cranial oblique insertion using MPR images is a feasible and safe therapeutic option. More... »

PAGES

533-539

Identifiers

URI

http://scigraph.springernature.com/pub.10.1007/s11604-012-0074-7

DOI

http://dx.doi.org/10.1007/s11604-012-0074-7

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1016950050

PUBMED

https://www.ncbi.nlm.nih.gov/pubmed/22528338


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30 schema:description PurposeTo evaluate the feasibility and safety of CT-guided radiofrequency (RF) ablation by caudal-cranial oblique insertion using multiplanar reformation (MPR) images for hepatocellular carcinomas (HCCs).Materials and methodsTwenty-two HCCs in 19 patients that were difficult to demonstrate on ultrasound (mean tumor diameter was 17.5 mm) were treated with CT-guided RF ablation by caudal-cranial oblique insertion to avoid pneumothorax, using MPR images after transcatheter arterial chemoembolization. The insertion point and direction of insertion, avoiding aerated lung parenchyma, bones, large vessels, and intestine, were sought on the MPR images. Technical success was defined as complete eradication of tumor enhancement in the contrast-enhanced CT. Local tumor progression was defined by the appearance of enhanced tumor adjacent to the zone of ablation. The technical success rate, local tumor progression, and complications were investigated.ResultsThe coronal plane was used for insertion in 18 tumors, the sagittal plane in 3 tumors, and the oblique plane in 1 tumor. RF electrode placement was successful and complete necrosis was obtained in all cases. During the mean follow-up period of 38.0 months, local tumor progression was not detected in any of the patients. There were no major complications, including pneumothorax.ConclusionCT-guided RF ablation by caudal-cranial oblique insertion using MPR images is a feasible and safe therapeutic option.
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37 schema:keywords CT
38 CT-guided RF ablation
39 ConclusionCT
40 MPR images
41 PurposeTo
42 RF ablation
43 RF electrode placement
44 ablation
45 aerated lung parenchyma
46 appearance
47 approach
48 arterial chemoembolization
49 bone
50 carcinoma
51 cases
52 caudal-cranial oblique insertion
53 chemoembolization
54 complete eradication
55 complete necrosis
56 complications
57 contrast-enhanced CT
58 coronal plane
59 direction
60 direction of insertion
61 electrode placement
62 enhanced tumor
63 enhancement
64 eradication
65 feasibility
66 hepatocellular carcinoma
67 images
68 insertion
69 insertion point
70 intestine
71 large vessels
72 liver radiofrequency ablation
73 local tumor progression
74 lung parenchyma
75 major complications
76 materials
77 months
78 multiplanar reformation images
79 necrosis
80 oblique approach
81 oblique insertion
82 oblique plane
83 options
84 parenchyma
85 patients
86 period
87 placement
88 plane
89 pneumothorax
90 point
91 progression
92 radiofrequency ablation
93 rate
94 reformation (MPR) images
95 safe therapeutic option
96 safety
97 safety of CT
98 sagittal plane
99 success
100 success rate
101 technical success
102 technical success rate
103 therapeutic options
104 transcatheter arterial chemoembolization
105 tumor enhancement
106 tumor progression
107 tumors
108 ultrasound
109 vessels
110 zone
111 zone of ablation
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