Main findings - CT follow up

CT: availability [əˌveɪlə'bɪlətɪ], cost-effective, easy to repeat

Most often used technique for FU after ablation of a lung tumor
Ablation zone: increase in size in the early postoperative period

inflammatory changes, hemorrhagic phenomenon, … and safety margins


病变	术后第二天: inflammatory changes

安全边界

safety margins

消融的直径对生存率有影响。


651 lung tumors , 12 ± 7 mm (range, 2–42 mm) The difference between electrode array diameter and tumor diameter (DAT) median DAT 12 mm
Ihara H. JVIR 2016; 27:87–95

The difference between electrode array diameter and tumor diameter (DAT) is very important for OS. Ihara H. JVIR 2016; 27:87–95

Before 6 months: RF or MW ablation zone is supposed to exceed the size of the initial tumor (complete ablation).


before	day 2


M1	M3


Month 3	Month 6

Follow-up after lung ablation

肺癌射频或微波消融后CT的主要发现

After 6 months: the scar decreases in size (complete ablation), But may remain stable. Long term FU: scar equal or bigger than the initial tumor.


	RF


48H	M1 Atelectasis


M6	M9

Palussiere J1, Lagarde P, Aupérin A, Deschamps F, Chomy F, de Baere T. Percutaneous lung thermal ablation of non-surgical clinical N0 non-small cell lung cancer: results of eight years' experience in 87 patients from two centers.Cardiovasc Intervent Radiol. 2015 Feb;38(1):160-6.


before	D2


M1	M3

After 6 months: the scar decreases in size (complete ablation),


M6	M9

Long term FU: scar equal or bigger than the initial tumor.


BEFORE	M12


	D2


M1	M3


M3	M3

FIBROSIS


M18	M18

Main issue: Diagnosis of local recurrence

Choice of the reference image is crucial

RECIST evaluation: not effective

Best reference image: one month CT

(编辑：Mr.Editor)

杨宁介入医学网

搜索

热门标签

肺癌消融治疗后随访：CT

Palussiere J1, Lagarde P, Aupérin A, Deschamps F, Chomy F, de Baere T. Percutaneous lung thermal ablation of non-surgical clinical N0 non-small cell lung cancer: results of eight years' experience in 87 patients from two centers.Cardiovasc Intervent Radiol. 2015 Feb;38(1):160-6.