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Fig. 4 | BMC Cancer

Fig. 4

From: A phase I/II clinical trial for the hybrid of intracavitary and interstitial brachytherapy for locally advanced cervical cancer

Fig. 4

Schema of the concept of the hybrid brachytherapy (HBT). Figure 4a is a schema of conventional intracavitary brachytherapy (ICBT) in which tandem and ovoid are inserted in uterine cavity and vagina, respectively. Thick solid line represents isodose line of the prescribed dose. Tumor is represented by shaded structure which extends left parametrium and notice that left distal part of parametrium is not adequately covered by isodose line. Figure 4b is a schema of the HBT in which an additional interstitial needle is inserted to left parametrium covering of which is not enough with conventional ICBT. Notice that isodose line now covers whole tumor completely

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