Radioimmunoimaging of colorectal cancer using 99mTc-labeled monoclonal antibody

Table 1 Clinical data and imaging results

No.	Sex	Age (year)	Clinical diagnosis	Tumor size(cm)	Pathological diagnosis	Immunohisto chemistry	Quantity of antib ody(mg)	Radioa ctivity of 99m Tc(mCi)	Imaging
1	Male	74	Rectal carcinoma	3.0 × 5.0	Adenocarcinoma	+++	3.0	23	+
2	Female	47	Rectal carcinoma	1.8 × 2.0	Papilloadenocarcinoma	++	5.0	20	-
3	Male	35	Rectal carcinoma	3.0 × 4.5	Adenocarcinoma	++	7.5	19	-
4a	Male	67	Rectal carcinoma	3.5 × 4.5	Low differentiated adenocarcinoma	+++	7.5	16	+
5	Female	54	Colonic carcinoma	4.0 × 5.0	Adenocarcinoma	++	8.0	15	-
6	Female	55	Rectal carcinoma	2.5 × 3.5	Adenocarcinoma stage II	++	5.0	19	+
7	Male	61	Colonic carcinoma	2.5 × 3.5	Adenocarcinoma	+	5.0	40	-
8b	Male	38	Rectal carcinoma	3.5 × 5.0	Adenocarcinoma	++	5.0	38	+
9b	Male	65	Colonic carcinoma	2.5 × 3.0	Adenocarcinoma stage II	++	2.0	15	-
10b	Female	44	Rectal carcinoma	2.5 × 3.0	Adenocarcinoma stage II	++	5.0	18	+

“+” partial weak staining; “++” partial strong staining or broad weak staining; “+++” broad strong staining.

^acomplicated with liver metastasis.

^bThe antibodies used were fragment F(ab’)₂.