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Small hepatocellular carcinoma treated with percutaneous RF ablation: MR imaging follow-up


, : Small hepatocellular carcinoma treated with percutaneous RF ablation: MR imaging follow-up. Ajr. American Journal of Roentgenology 173(5): 1225-1229

The purpose of our study was to determine the usefulness of MR imaging in the follow-up evaluation of small hepatocellular carcinoma lesions treated with RF ablation. The study group included 37 patients with a single hepatocellular carcinoma lesion less than 3 cm in diameter. A strict protocol required follow-up MR imaging every 6 months after RF treatment. At each follow-up visit, the findings on unenhanced and dynamic gadolinium-enhanced MR images were correlated with those on contrast-enhanced CT images and with results of fine-needle aspiration biopsy. In five patients who underwent surgical resection after the 6-month follow-up examination, comparison with histologic findings of surgical specimens was also performed. Correct diagnosis of complete or partial tumor necrosis was made in 32 (86%) of the 37 patients with the use of unenhanced and dynamic gadolinium-enhanced MR images. Hypointensity on T2-weighted images and loss of enhancement on dynamic MR images corresponded to completely necrotic lesions in all patients. Conversely, intratumoral regions of hyperintensity on T2-weighted images and enhancement on dynamic MR images did not always correlate to residual viable tumor. MR imaging and CT findings agreed in the evaluation of therapeutic response in all patients. Our experience confirms that MR imaging is useful for evaluating the effectiveness of RF therapy in achieving tumor regression.

US$19.90

PMID: 10541093

DOI: 10.2214/ajr.173.5.10541093


Other references

Hoare, T.; Pelton, R., 2008: Charge-switching, amphoteric glucose-responsive microgels with physiological swelling activity. Amphoteric, poly(N-isopropylacrylamide)-based microgels are functionalized with aminophenylboronic acid (PBA) functional groups to produce colloidally stable, glucose-responsive gel nanoparticles that exhibit glucose-dependent swelling responses a...

Hingston, A.B.; McQuillan, P.B., 1998: Nectar robbing in Epacris impressa (Epacridaceae) by the recently introduced bumblebee Bombus terrestris (Apidae) in Tasmania. The frequency of nectar robbing by Bombus terrestris (L.) was compared between two populations of Common Heath Epacris impressa Labill. in southern Tasmania. Robbing was more frequent in the population with longer corollas, resulting in most open...

Nicot, C., 1976: The distribution of fires in the Gironde Department. Revue forestiere francaise: ub 1976), special no (v 1) 25-29

Mixer, S.J.; Carson, E.; McArthur, P.M.; Abraham, C.; Silva, K.; Davidson, R.; Sharp, D.; Chadwick, J., 2015: Nurses in Action: A Response to Cultural Care Challenges in a Pediatric Acute Care Setting. Culturally congruent care is satisfying, meaningful, fits with people's daily lives, and promotes their health and wellbeing. A group of staff nurses identified specific clinical challenges they faced in providing such care for Hispanic and u...

McCallum, H.; Barlow, N.; Hone, J., 2001: How should pathogen transmission be modelled?. Host-pathogen models are essential for designing strategies for managing disease threats to humans, wild animals and domestic animals. The behaviour of these models is greatly affected by the way in which transmission between infected and suscepti...

Harrison R.O.; Young J.W.; Freeman A.E.; Ford S.P., 1989: Effects of lactational level on reactivation of ovarian function and interval from parturition to first visual estrus and conception in high producing holstein cows. Data were collected on 19 high-producing Hostein dairy cows from day 20 post partum until they were either determined pregnant or reached 150 days post partum. Blood metabolites (progesterone(P4), glucose, beta-hydroxybutyrate (BHBA) and free fatt...

Simons, L.A.; Simons, J.; Friedlander, Y.; Mccallum, J., 2001: LDL cholesterol predicts heart attack and stroke in elderly citizens showing elevated triglycerides and low HDL cholesterol. Circulation 104(17 Supplement): II 809, October 23

Biswas, H.; Mukhopadhyay, S.K.; De, T.K.; Sen, S.; Jana, T.K., 2004: Biogenic controls on the air-water carbon dioxide exchange in the Sundarban mangrove environment, northeast coast of Bay of Bengal, India. The Sundarban mangrove forest (4,264 km2) constitutes about 3% of the total area of the world mangrove. We measured diurnal and seasonal variations of air-water CO2 exchange in relation to the occurrence of phytoplankton during January-December 20...

Wilkie, J.B.; Hintz, L.K., 1965: Ventilation of thin layer plates. Ass Offic Agr Chem J 48(5): 1076-1078

Bryant, E.H., 1977: Morphometric Adaptation Of The Housefly, Musca Domestica L., In The United States. Evolution; International Journal of Organic Evolution 31(3): 580-596